diff options
| -rw-r--r-- | code/qcommon/vm_ppc.c | 2463 |
1 files changed, 1230 insertions, 1233 deletions
diff --git a/code/qcommon/vm_ppc.c b/code/qcommon/vm_ppc.c index 31c982d..171fdaa 100644 --- a/code/qcommon/vm_ppc.c +++ b/code/qcommon/vm_ppc.c @@ -118,9 +118,9 @@ static char *opnames[256] = { #endif typedef enum { - R_REAL_STACK = 1, + R_REAL_STACK = 1, // registers 3-11 are the parameter passing registers - + // state R_STACK = 3, // local R_OPSTACK, // global @@ -129,9 +129,9 @@ typedef enum { R_MEMBASE, // global R_MEMMASK, R_ASMCALL, // global - R_INSTRUCTIONS, // global - R_NUM_INSTRUCTIONS, // global - R_CVM, // currentVM + R_INSTRUCTIONS, // global + R_NUM_INSTRUCTIONS, // global + R_CVM, // currentVM // temps R_TOP = 11, @@ -470,39 +470,39 @@ static void Emit4( char *opname, int i ) { } static void Inst( char *opname, int opcode, int destReg, int aReg, int bReg ) { - unsigned r; + unsigned r; - #if DEBUG_VM +#if DEBUG_VM if(pass == 1) printf("\t\t\t%p %s\tr%d,r%d,r%d\n",&buf[compiledOfs],opname,destReg,aReg,bReg); - #endif - r = opcode | ( destReg << 21 ) | ( aReg << 16 ) | ( bReg << 11 ) ; - buf[ compiledOfs ] = r; - compiledOfs++; +#endif + r = opcode | ( destReg << 21 ) | ( aReg << 16 ) | ( bReg << 11 ) ; + buf[ compiledOfs ] = r; + compiledOfs++; } static void Inst4( char *opname, int opcode, int destReg, int aReg, int bReg, int cReg ) { - unsigned r; + unsigned r; - #if DEBUG_VM +#if DEBUG_VM if(pass == 1) printf("\t\t\t%p %s\tr%d,r%d,r%d,r%d\n",&buf[compiledOfs],opname,destReg,aReg,bReg,cReg); - #endif - r = opcode | ( destReg << 21 ) | ( aReg << 16 ) | ( bReg << 11 ) | ( cReg << 6 ); - buf[ compiledOfs ] = r; - compiledOfs++; +#endif + r = opcode | ( destReg << 21 ) | ( aReg << 16 ) | ( bReg << 11 ) | ( cReg << 6 ); + buf[ compiledOfs ] = r; + compiledOfs++; } static void InstImm( char *opname, int opcode, int destReg, int aReg, int immediate ) { unsigned r; - + if ( immediate > 32767 || immediate < -32768 ) { - Com_Error( ERR_FATAL, "VM_Compile: immediate value %i out of range, opcode %x,%d,%d", immediate, opcode, destReg, aReg ); + Com_Error( ERR_FATAL, "VM_Compile: immediate value %i out of range, opcode %x,%d,%d", immediate, opcode, destReg, aReg ); } - #if DEBUG_VM +#if DEBUG_VM if(pass == 1) printf("\t\t\t%p %s\tr%d,r%d,0x%x\n",&buf[compiledOfs],opname,destReg,aReg,immediate); - #endif +#endif r = opcode | ( destReg << 21 ) | ( aReg << 16 ) | ( immediate & 0xffff ); buf[ compiledOfs ] = r; compiledOfs++; @@ -510,15 +510,15 @@ static void InstImm( char *opname, int opcode, int destReg, int aReg, int immedi static void InstImmU( char *opname, int opcode, int destReg, int aReg, int immediate ) { unsigned r; - + if ( immediate > 0xffff || immediate < 0 ) { Com_Error( ERR_FATAL, "VM_Compile: immediate value %i out of range", immediate ); } - #if DEBUG_VM +#if DEBUG_VM if(pass == 1) printf("\t\t\t%p %s\tr%d,r%d,0x%x\n",&buf[compiledOfs],opname,destReg,aReg,immediate); - #endif - r = opcode | ( destReg << 21 ) | ( aReg << 16 ) | ( immediate & 0xffff ); +#endif + r = opcode | ( destReg << 21 ) | ( aReg << 16 ) | ( immediate & 0xffff ); buf[ compiledOfs ] = r; compiledOfs++; } @@ -532,7 +532,7 @@ static void spillOpStack(int depth) { // Store out each register on the operand stack to it's correct location. int i; - + for(i = 0; i < depth; i++) { assert(opStackRegType[i]); @@ -553,10 +553,10 @@ static void spillOpStack(int depth) static void loadOpStack(int depth) { // Back off operand stack pointer and reload all operands. -// InstImm( "addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, -(depth)*4 ); + // InstImm( "addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, -(depth)*4 ); int i; - + for(i = 0; i < depth; i++) { assert(opStackRegType[i] == 0); @@ -564,7 +564,7 @@ static void loadOpStack(int depth) opStackLoadInstructionAddr[i] = &buf[compiledOfs]; InstImm( "lwz", PPC_LWZ, opStackIntRegisters[i], R_OPSTACK, i*4+4); opStackRegType[i] = 1; - } + } } static void makeFloat(int depth) @@ -574,7 +574,7 @@ static void makeFloat(int depth) { unsigned instruction; unsigned destReg, aReg, bReg, imm; - + if(opStackLoadInstructionAddr[depth]) { // Repatch load instruction to use LFS instead of LWZ @@ -588,7 +588,7 @@ static void makeFloat(int depth) destReg = (instruction >> 21) & 31; aReg = (instruction >> 16) & 31; imm = instruction & 0xffff; - + // Calculate correct FP register to use. // THIS ASSUMES REGISTER USAGE FOR THE STACK IS n, n+1, n+2, etc! //printf("old dest: %ld\n",destReg); @@ -690,1059 +690,1059 @@ void VM_Compile( vm_t *vm, vmHeader_t *header ) { buf = Z_Malloc( maxLength ); jused = Z_Malloc(jusedSize); Com_Memset(jused, 0, jusedSize); - - // compile everything twice, so the second pass will have valid instruction - // pointers for branches - for ( pass = -1 ; pass < 2 ; pass++ ) { - - // translate all instructions - pc = 0; - mainFunction = 0; - opStackDepth = 0; - - pop0 = 343545; - pop1 = 2443545; - oc0 = -2343535; - oc1 = 24353454; - tvm = vm; - code = (byte *)header + header->codeOffset; - compiledOfs = 0; + + // compile everything twice, so the second pass will have valid instruction + // pointers for branches + for ( pass = -1 ; pass < 2 ; pass++ ) { + + // translate all instructions + pc = 0; + mainFunction = 0; + opStackDepth = 0; + + pop0 = 343545; + pop1 = 2443545; + oc0 = -2343535; + oc1 = 24353454; + tvm = vm; + code = (byte *)header + header->codeOffset; + compiledOfs = 0; #ifndef __GNUC__ // metrowerks seems to require this header in front of functions Emit4( (int)(buf+2) ); Emit4( 0 ); #endif - for ( instruction = 0 ; instruction < header->instructionCount ; instruction++ ) { - if ( compiledOfs*4 > maxLength - 16 ) { - Com_Error( ERR_DROP, "VM_Compile: maxLength exceeded" ); - } - - op = code[ pc ]; - if ( !pass ) { - vm->instructionPointers[ instruction ] = compiledOfs * 4; - } - pc++; - switch ( op ) { - case 0: - break; - case OP_BREAK: - #if DEBUG_VM - if(pass == 1) - printf("%08lx BREAK\n",instruction); - #endif - InstImmU( "addi", PPC_ADDI, R_TOP, 0, 0 ); - InstImm( "lwz", PPC_LWZ, R_TOP, R_TOP, 0 ); // *(int *)0 to crash to debugger - break; - case OP_ENTER: - opStackDepth = 0; - v = Constant4(); - #if DEBUG_VM - if(pass == 1) - printf("%08x ENTER\t%04x\n",instruction,v); - #endif - opStackRegType[opStackDepth] = 0; - mainFunction++; - if(mainFunction == 1) - { - // Main VM entry point is the first thing we compile, so save off operand stack - // registers here. This avoids issues with trying to trick the native compiler - // into doing it, and properly matches the PowerPC ABI - InstImm( "addi", PPC_ADDI, R_REAL_STACK, R_REAL_STACK, -OP_STACK_MAX_DEPTH*4 ); // sub R_STACK, R_STACK, imm - for(i = 0; i < OP_STACK_MAX_DEPTH; i++) - InstImm( "stw", PPC_STW, opStackIntRegisters[i], R_REAL_STACK, i*4); - } - InstImm( "addi", PPC_ADDI, R_STACK, R_STACK, -v ); // sub R_STACK, R_STACK, imm - break; - case OP_CONST: - v = Constant4(); - #if DEBUG_VM - if(pass == 1) - printf("%08x CONST\t%08x\n",instruction,v); - #endif - opStackLoadInstructionAddr[opStackDepth] = 0; - if ( v < 32768 && v >= -32768 ) { - InstImmU( "addi", PPC_ADDI, opStackIntRegisters[opStackDepth], 0, v & 0xffff ); - } else { - InstImmU( "addis", PPC_ADDIS, opStackIntRegisters[opStackDepth], 0, (v >> 16)&0xffff ); - if ( v & 0xffff ) { - InstImmU( "ori", PPC_ORI, opStackIntRegisters[opStackDepth], opStackIntRegisters[opStackDepth], v & 0xffff ); - } - } - opStackRegType[opStackDepth] = 1; - opStackDepth += 1; - if (code[pc] == OP_JUMP) { - JUSED(v); - } - break; - case OP_LOCAL: - oc1 = Constant4(); - #if DEBUG_VM - if(pass == 1) - printf("%08x LOCAL\t%08x\n",instruction,oc1); - #endif - if (code[pc] == OP_LOAD4 || code[pc] == OP_LOAD2 || code[pc] == OP_LOAD1) { - oc1 &= vm->dataMask; - } - InstImm( "addi", PPC_ADDI, opStackIntRegisters[opStackDepth], R_STACK, oc1 ); - opStackRegType[opStackDepth] = 1; - opStackLoadInstructionAddr[opStackDepth] = 0; - opStackDepth += 1; - break; - case OP_ARG: - v = Constant1(); - #if DEBUG_VM - if(pass == 1) - printf("%08x ARG \t%08x\n",instruction,v); - #endif - InstImm( "addi", PPC_ADDI, R_EA, R_STACK, v ); // location to put it - if(opStackRegType[opStackDepth-1] == 1) - Inst( "stwx", PPC_STWX, opStackIntRegisters[opStackDepth-1], R_EA, R_MEMBASE ); - else - Inst( "stfsx", PPC_STFSX, opStackFloatRegisters[opStackDepth-1], R_EA, R_MEMBASE ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - - break; - case OP_CALL: - #if DEBUG_VM - if(pass == 1) - printf("%08x CALL\n",instruction); - #endif - assertInteger(opStackDepth-1); - assert(opStackDepth > 0); - Inst( "mflr", PPC_MFSPR, R_SECOND, 8, 0 ); // move from link register - InstImm( "stwu", PPC_STWU, R_SECOND, R_REAL_STACK, -16 ); // save off the old return address - - // Spill operand stack registers. - spillOpStack(opStackDepth); - - // We need to leave R_OPSTACK pointing to the top entry on the stack, which is the call address. - // It will be consumed (and R4 decremented) by the AsmCall code. - InstImm( "addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, opStackDepth*4); - - Inst( "mtctr", PPC_MTSPR, R_ASMCALL, 9, 0 ); // move to count register - Inst( "bctrl", PPC_BCCTR | 1, 20, 0, 0 ); // jump and link to the count register - - // R4 now points to the top of the operand stack, which has the return value in it. We want to - // back off the pointer to point to the base of our local operand stack and then reload the stack. - - InstImm("addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, -opStackDepth*4); - - // Reload operand stack. - loadOpStack(opStackDepth); - - InstImm( "lwz", PPC_LWZ, R_SECOND, R_REAL_STACK, 0 ); // fetch the old return address - InstImm( "addi", PPC_ADDI, R_REAL_STACK, R_REAL_STACK, 16 ); - Inst( "mtlr", PPC_MTSPR, R_SECOND, 8, 0 ); // move to link register - break; - case OP_PUSH: - #if DEBUG_VM - if(pass == 1) - printf("%08x PUSH\n",instruction); - #endif - opStackRegType[opStackDepth] = 1; // Garbage int value. - opStackDepth += 1; - break; - case OP_POP: - #if DEBUG_VM - if(pass == 1) - printf("%08x POP\n",instruction); - #endif - opStackDepth -= 1; - opStackRegType[opStackDepth] = 0; // ?? - opStackLoadInstructionAddr[opStackDepth-1] = 0; - break; - case OP_LEAVE: - #if DEBUG_VM - if(pass == 1) - printf("%08x LEAVE\n",instruction); - #endif - assert(opStackDepth == 1); - assert(opStackRegType[0] != 0); - // Save return value onto top of op stack. We also have to increment R_OPSTACK - switch(opStackRegType[0]) - { - case 1: // Integer register - InstImm( "stw", PPC_STWU, opStackIntRegisters[0], R_OPSTACK, 4); - break; - case 2: // Float register - InstImm( "stfs", PPC_STFSU, opStackFloatRegisters[0], R_OPSTACK, 4); - break; + for ( instruction = 0 ; instruction < header->instructionCount ; instruction++ ) { + if ( compiledOfs*4 > maxLength - 16 ) { + Com_Error( ERR_DROP, "VM_Compile: maxLength exceeded" ); + } + + op = code[ pc ]; + if ( !pass ) { + vm->instructionPointers[ instruction ] = compiledOfs * 4; + } + pc++; + switch ( op ) { + case 0: + break; + case OP_BREAK: +#if DEBUG_VM + if(pass == 1) + printf("%08lx BREAK\n",instruction); +#endif + InstImmU( "addi", PPC_ADDI, R_TOP, 0, 0 ); + InstImm( "lwz", PPC_LWZ, R_TOP, R_TOP, 0 ); // *(int *)0 to crash to debugger + break; + case OP_ENTER: + opStackDepth = 0; + v = Constant4(); +#if DEBUG_VM + if(pass == 1) + printf("%08x ENTER\t%04x\n",instruction,v); +#endif + opStackRegType[opStackDepth] = 0; + mainFunction++; + if(mainFunction == 1) + { + // Main VM entry point is the first thing we compile, so save off operand stack + // registers here. This avoids issues with trying to trick the native compiler + // into doing it, and properly matches the PowerPC ABI + InstImm( "addi", PPC_ADDI, R_REAL_STACK, R_REAL_STACK, -OP_STACK_MAX_DEPTH*4 ); // sub R_STACK, R_STACK, imm + for(i = 0; i < OP_STACK_MAX_DEPTH; i++) + InstImm( "stw", PPC_STW, opStackIntRegisters[i], R_REAL_STACK, i*4); + } + InstImm( "addi", PPC_ADDI, R_STACK, R_STACK, -v ); // sub R_STACK, R_STACK, imm + break; + case OP_CONST: + v = Constant4(); +#if DEBUG_VM + if(pass == 1) + printf("%08x CONST\t%08x\n",instruction,v); +#endif + opStackLoadInstructionAddr[opStackDepth] = 0; + if ( v < 32768 && v >= -32768 ) { + InstImmU( "addi", PPC_ADDI, opStackIntRegisters[opStackDepth], 0, v & 0xffff ); + } else { + InstImmU( "addis", PPC_ADDIS, opStackIntRegisters[opStackDepth], 0, (v >> 16)&0xffff ); + if ( v & 0xffff ) { + InstImmU( "ori", PPC_ORI, opStackIntRegisters[opStackDepth], opStackIntRegisters[opStackDepth], v & 0xffff ); + } + } + opStackRegType[opStackDepth] = 1; + opStackDepth += 1; + if (code[pc] == OP_JUMP) { + JUSED(v); + } + break; + case OP_LOCAL: + oc1 = Constant4(); +#if DEBUG_VM + if(pass == 1) + printf("%08x LOCAL\t%08x\n",instruction,oc1); +#endif + if (code[pc] == OP_LOAD4 || code[pc] == OP_LOAD2 || code[pc] == OP_LOAD1) { + oc1 &= vm->dataMask; + } + InstImm( "addi", PPC_ADDI, opStackIntRegisters[opStackDepth], R_STACK, oc1 ); + opStackRegType[opStackDepth] = 1; + opStackLoadInstructionAddr[opStackDepth] = 0; + opStackDepth += 1; + break; + case OP_ARG: + v = Constant1(); +#if DEBUG_VM + if(pass == 1) + printf("%08x ARG \t%08x\n",instruction,v); +#endif + InstImm( "addi", PPC_ADDI, R_EA, R_STACK, v ); // location to put it + if(opStackRegType[opStackDepth-1] == 1) + Inst( "stwx", PPC_STWX, opStackIntRegisters[opStackDepth-1], R_EA, R_MEMBASE ); + else + Inst( "stfsx", PPC_STFSX, opStackFloatRegisters[opStackDepth-1], R_EA, R_MEMBASE ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + + break; + case OP_CALL: +#if DEBUG_VM + if(pass == 1) + printf("%08x CALL\n",instruction); +#endif + assertInteger(opStackDepth-1); + assert(opStackDepth > 0); + Inst( "mflr", PPC_MFSPR, R_SECOND, 8, 0 ); // move from link register + InstImm( "stwu", PPC_STWU, R_SECOND, R_REAL_STACK, -16 ); // save off the old return address + + // Spill operand stack registers. + spillOpStack(opStackDepth); + + // We need to leave R_OPSTACK pointing to the top entry on the stack, which is the call address. + // It will be consumed (and R4 decremented) by the AsmCall code. + InstImm( "addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, opStackDepth*4); + + Inst( "mtctr", PPC_MTSPR, R_ASMCALL, 9, 0 ); // move to count register + Inst( "bctrl", PPC_BCCTR | 1, 20, 0, 0 ); // jump and link to the count register + + // R4 now points to the top of the operand stack, which has the return value in it. We want to + // back off the pointer to point to the base of our local operand stack and then reload the stack. + + InstImm("addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, -opStackDepth*4); + + // Reload operand stack. + loadOpStack(opStackDepth); + + InstImm( "lwz", PPC_LWZ, R_SECOND, R_REAL_STACK, 0 ); // fetch the old return address + InstImm( "addi", PPC_ADDI, R_REAL_STACK, R_REAL_STACK, 16 ); + Inst( "mtlr", PPC_MTSPR, R_SECOND, 8, 0 ); // move to link register + break; + case OP_PUSH: +#if DEBUG_VM + if(pass == 1) + printf("%08x PUSH\n",instruction); +#endif + opStackRegType[opStackDepth] = 1; // Garbage int value. + opStackDepth += 1; + break; + case OP_POP: +#if DEBUG_VM + if(pass == 1) + printf("%08x POP\n",instruction); +#endif + opStackDepth -= 1; + opStackRegType[opStackDepth] = 0; // ?? + opStackLoadInstructionAddr[opStackDepth-1] = 0; + break; + case OP_LEAVE: +#if DEBUG_VM + if(pass == 1) + printf("%08x LEAVE\n",instruction); +#endif + assert(opStackDepth == 1); + assert(opStackRegType[0] != 0); + // Save return value onto top of op stack. We also have to increment R_OPSTACK + switch(opStackRegType[0]) + { + case 1: // Integer register + InstImm( "stw", PPC_STWU, opStackIntRegisters[0], R_OPSTACK, 4); + break; + case 2: // Float register + InstImm( "stfs", PPC_STFSU, opStackFloatRegisters[0], R_OPSTACK, 4); + break; + } + InstImm( "addi", PPC_ADDI, R_STACK, R_STACK, Constant4() ); // add R_STACK, R_STACK, imm + if(mainFunction == 1) + { + for(i = 0; i < OP_STACK_MAX_DEPTH; i++) + InstImm( "lwz", PPC_LWZ, opStackIntRegisters[i], R_REAL_STACK, i*4); + InstImm( "addi", PPC_ADDI, R_REAL_STACK, R_REAL_STACK, OP_STACK_MAX_DEPTH*4 ); + } + opStackDepth--; + opStackRegType[opStackDepth] = 0; + opStackLoadInstructionAddr[opStackDepth] = 0; + Inst( "blr", PPC_BCLR, 20, 0, 0 ); // branch unconditionally to link register + break; + case OP_LOAD4: +#if DEBUG_VM + if(pass == 1) + printf("%08x LOAD4\n",instruction); +#endif + // We should try to figure out whether to use LWZX or LFSX based + // on some kind of code analysis after subsequent passes. I think what + // we could do is store the compiled load instruction address along with + // the register type. When we hit the first mismatched operator, we go back + // and patch the load. Since LCC's operand stack should be at 0 depth by the + // time we hit a branch, this should work fairly well. FIXME FIXME FIXME. + assertInteger(opStackDepth-1); + opStackLoadInstructionAddr[opStackDepth-1] = &buf[ compiledOfs ]; + Inst( "lwzx", PPC_LWZX, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_MEMBASE );// load from memory base + opStackRegType[opStackDepth-1] = 1; + break; + case OP_LOAD2: +#if DEBUG_VM + if(pass == 1) + printf("%08x LOAD2\n",instruction); +#endif + assertInteger(opStackDepth-1); + opStackLoadInstructionAddr[opStackDepth-1] = 0; + Inst( "lhzx", PPC_LHZX, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_MEMBASE );// load from memory base + opStackRegType[opStackDepth-1] = 1; + break; + case OP_LOAD1: +#if DEBUG_VM + if(pass == 1) + printf("%08x LOAD1\n",instruction); +#endif + assertInteger(opStackDepth-1); + opStackLoadInstructionAddr[opStackDepth-1] = 0; + Inst( "lbzx", PPC_LBZX, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_MEMBASE );// load from memory base + opStackRegType[opStackDepth-1] = 1; + break; + case OP_STORE4: +#if DEBUG_VM + if(pass == 1) + printf("%08x STORE4\n",instruction); +#endif + assertInteger(opStackDepth-2); + if(opStackRegType[opStackDepth-1] == 1) + Inst( "stwx", PPC_STWX, opStackIntRegisters[opStackDepth-1], + opStackIntRegisters[opStackDepth-2], R_MEMBASE ); // store from memory base + else + Inst( "stfsx", PPC_STFSX, opStackFloatRegisters[opStackDepth-1], + opStackIntRegisters[opStackDepth-2], R_MEMBASE ); // store from memory base + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + break; + case OP_STORE2: +#if DEBUG_VM + if(pass == 1) + printf("%08x STORE2\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "sthx", PPC_STHX, opStackIntRegisters[opStackDepth-1], + opStackIntRegisters[opStackDepth-2], R_MEMBASE ); // store from memory base + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + break; + case OP_STORE1: +#if DEBUG_VM + if(pass == 1) + printf("%08x STORE1\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "stbx", PPC_STBX, opStackIntRegisters[opStackDepth-1], + opStackIntRegisters[opStackDepth-2], R_MEMBASE ); // store from memory base + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + break; + + case OP_EQ: +#if DEBUG_VM + if(pass == 1) + printf("%08x EQ\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 4, 2, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (v&0x3ffffff) ); + break; + case OP_NE: +#if DEBUG_VM + if(pass == 1) + printf("%08x NE\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 12, 2, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 4, 2, v ); + + break; + case OP_LTI: +#if DEBUG_VM + if(pass == 1) + printf("%08x LTI\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 4, 0, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 12, 0, v ); + break; + case OP_LEI: +#if DEBUG_VM + if(pass == 1) + printf("%08x LEI\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 12, 1, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 4, 1, v ); + break; + case OP_GTI: +#if DEBUG_VM + if(pass == 1) + printf("%08x GTI\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 4, 1, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 12, 1, v ); + break; + case OP_GEI: +#if DEBUG_VM + if(pass == 1) + printf("%08x GEI\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 12, 0, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 4, 0, v ); + break; + case OP_LTU: +#if DEBUG_VM + if(pass == 1) + printf("%08x LTU\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmpl", PPC_CMPL, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 4, 0, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 12, 0, v ); + break; + case OP_LEU: +#if DEBUG_VM + if(pass == 1) + printf("%08x LEU\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmpl", PPC_CMPL, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 12, 1, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 4, 1, v ); + break; + case OP_GTU: +#if DEBUG_VM + if(pass == 1) + printf("%08x GTU\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmpl", PPC_CMPL, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 4, 1, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 12, 1, v ); + break; + case OP_GEU: +#if DEBUG_VM + if(pass == 1) + printf("%08x GEU\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "cmpl", PPC_CMPL, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 12, 0, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 4, 0, v ); + break; + + case OP_EQF: +#if DEBUG_VM + if(pass == 1) + printf("%08x EQF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 4, 2, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 12, 2, v ); + break; + case OP_NEF: +#if DEBUG_VM + if(pass == 1) + printf("%08x NEF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 12, 2, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 4, 2, v ); + break; + case OP_LTF: +#if DEBUG_VM + if(pass == 1) + printf("%08x LTF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 4, 0, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 12, 0, v ); + break; + case OP_LEF: +#if DEBUG_VM + if(pass == 1) + printf("%08x LEF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 12, 1, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 4, 1, v ); + break; + case OP_GTF: +#if DEBUG_VM + if(pass == 1) + printf("%08x GTF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 4, 1, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 12, 1, v ); + break; + case OP_GEF: +#if DEBUG_VM + if(pass == 1) + printf("%08x GEF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + i = Constant4(); + JUSED(i); + InstImm( "bc", PPC_BC, 12, 0, 8 ); + if ( pass==1 ) { + v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; + } else { + v = 0; + } + Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); + // InstImm( "bc", PPC_BC, 4, 0, v ); + break; + + case OP_NEGI: +#if DEBUG_VM + if(pass == 1) + printf("%08x NEGI\n",instruction); +#endif + assertInteger(opStackDepth-1); + InstImm( "subfic", PPC_SUBFIC, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 0 ); + opStackLoadInstructionAddr[opStackDepth-1] = 0; + break; + case OP_ADD: +#if DEBUG_VM + if(pass == 1) + printf("%08x ADD\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "add", PPC_ADD, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-2] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_SUB: +#if DEBUG_VM + if(pass == 1) + printf("%08x SUB\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "subf", PPC_SUBF, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-2] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_DIVI: +#if DEBUG_VM + if(pass == 1) + printf("%08x DIVI\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "divw", PPC_DIVW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_DIVU: +#if DEBUG_VM + if(pass == 1) + printf("%08x DIVU\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "divwu", PPC_DIVWU, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_MODI: +#if DEBUG_VM + if(pass == 1) + printf("%08x MODI\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "divw", PPC_DIVW, R_EA, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + Inst( "mullw", PPC_MULLW, R_EA, opStackIntRegisters[opStackDepth-1], R_EA ); + Inst( "subf", PPC_SUBF, opStackIntRegisters[opStackDepth-2], R_EA, opStackIntRegisters[opStackDepth-2] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_MODU: +#if DEBUG_VM + if(pass == 1) + printf("%08x MODU\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "divwu", PPC_DIVWU, R_EA, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + Inst( "mullw", PPC_MULLW, R_EA, opStackIntRegisters[opStackDepth-1], R_EA ); + Inst( "subf", PPC_SUBF, opStackIntRegisters[opStackDepth-2], R_EA, opStackIntRegisters[opStackDepth-2] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_MULI: + case OP_MULU: +#if DEBUG_VM + if(pass == 1) + printf("%08x MULI\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "mullw", PPC_MULLW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-2] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_BAND: +#if DEBUG_VM + if(pass == 1) + printf("%08x BAND\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "and", PPC_AND, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_BOR: +#if DEBUG_VM + if(pass == 1) + printf("%08x BOR\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "or", PPC_OR, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_BXOR: +#if DEBUG_VM + if(pass == 1) + printf("%08x BXOR\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "xor", PPC_XOR, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_BCOM: +#if DEBUG_VM + if(pass == 1) + printf("%08x BCOM\n",instruction); +#endif + assertInteger(opStackDepth-1); + Inst( "nor", PPC_NOR, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1] ); + opStackLoadInstructionAddr[opStackDepth-1] = 0; + break; + case OP_LSH: +#if DEBUG_VM + if(pass == 1) + printf("%08x LSH\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "slw", PPC_SLW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_RSHI: +#if DEBUG_VM + if(pass == 1) + printf("%08x RSHI\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "sraw", PPC_SRAW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_RSHU: +#if DEBUG_VM + if(pass == 1) + printf("%08x RSHU\n",instruction); +#endif + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + Inst( "srw", PPC_SRW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + + case OP_NEGF: +#if DEBUG_VM + if(pass == 1) + printf("%08x NEGF\n",instruction); +#endif + makeFloat(opStackDepth-1); + Inst( "fneg", PPC_FNEG, opStackFloatRegisters[opStackDepth-1], 0, opStackFloatRegisters[opStackDepth-1] ); + opStackLoadInstructionAddr[opStackDepth-1] = 0; + break; + case OP_ADDF: +#if DEBUG_VM + if(pass == 1) + printf("%08x ADDF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fadds", PPC_FADDS, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_SUBF: +#if DEBUG_VM + if(pass == 1) + printf("%08x SUBF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fsubs", PPC_FSUBS, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_DIVF: +#if DEBUG_VM + if(pass == 1) + printf("%08x DIVF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst( "fdivs", PPC_FDIVS, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + case OP_MULF: +#if DEBUG_VM + if(pass == 1) + printf("%08x MULF\n",instruction); +#endif + makeFloat(opStackDepth-1); + makeFloat(opStackDepth-2); + Inst4( "fmuls", PPC_FMULS, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-2], 0, opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + + case OP_CVIF: +#if DEBUG_VM + if(pass == 1) + printf("%08x CVIF\n",instruction); +#endif + assertInteger(opStackDepth-1); + //makeInteger(opStackDepth-1); + v = (int)&itofConvert; + InstImmU( "addis", PPC_ADDIS, R_EA, 0, (v >> 16)&0xffff ); + InstImmU( "ori", PPC_ORI, R_EA, R_EA, v & 0xffff ); + InstImmU( "xoris", PPC_XORIS, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 0x8000 ); + InstImm( "stw", PPC_STW, opStackIntRegisters[opStackDepth-1], R_EA, 12 ); + InstImm( "lfd", PPC_LFD, opStackFloatRegisters[opStackDepth-1], R_EA, 0 ); + Inst( "ori", PPC_ORI, 0, 0, 0); + Inst( "ori", PPC_ORI, 0, 0, 0); + Inst( "ori", PPC_ORI, 0, 0, 0); + InstImm( "lfd", PPC_LFD, 13, R_EA, 8 ); + Inst( "fsub", PPC_FSUB, opStackFloatRegisters[opStackDepth-1], 13, opStackFloatRegisters[opStackDepth-1] ); + opStackRegType[opStackDepth-1] = 2; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + // Inst( PPC_FRSP, R_TOP, 0, R_TOP ); + break; + case OP_CVFI: +#if DEBUG_VM + if(pass == 1) + printf("%08x CVFI\n",instruction); +#endif + makeFloat(opStackDepth-1); + + InstImm( "addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, opStackDepth*4); + + Inst( "fctiwz", PPC_FCTIWZ, opStackFloatRegisters[opStackDepth-1], 0, opStackFloatRegisters[opStackDepth-1] ); + Inst( "stfiwx", PPC_STFIWX, opStackFloatRegisters[opStackDepth-1], 0, R_OPSTACK ); // save value to opstack (dummy area now) + Inst( "ori", PPC_ORI, 0, 0, 0); + Inst( "ori", PPC_ORI, 0, 0, 0); + Inst( "ori", PPC_ORI, 0, 0, 0); + Inst( "ori", PPC_ORI, 0, 0, 0); + InstImm( "lwz", PPC_LWZ, opStackIntRegisters[opStackDepth-1], R_OPSTACK, 0 ); + + InstImm( "addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, -opStackDepth*4); + + opStackRegType[opStackDepth-1] = 1; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + break; + case OP_SEX8: +#if DEBUG_VM + if(pass == 1) + printf("%08x SEX8\n",instruction); +#endif + assertInteger(opStackDepth-1); + Inst( "extsb", PPC_EXTSB, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 0 ); + opStackLoadInstructionAddr[opStackDepth-1] = 0; + break; + case OP_SEX16: +#if DEBUG_VM + if(pass == 1) + printf("%08x SEX16\n",instruction); +#endif + assertInteger(opStackDepth-1); + Inst( "extsh", PPC_EXTSH, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 0 ); + opStackLoadInstructionAddr[opStackDepth-1] = 0; + break; + + case OP_BLOCK_COPY: + v = Constant4() >> 2; +#if DEBUG_VM + if(pass == 1) + printf("%08x BLOCK_COPY\t%08lx\n",instruction,v<<2); +#endif + assert(opStackDepth >= 2); + assertInteger(opStackDepth-1); + assertInteger(opStackDepth-2); + InstImmU( "addi", PPC_ADDI, R_EA, 0, v ); // count + // FIXME: range check + Inst( "mtctr", PPC_MTSPR, R_EA, 9, 0 ); // move to count register + + Inst( "add", PPC_ADD, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_MEMBASE ); + InstImm( "addi", PPC_ADDI, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], -4 ); + Inst( "add", PPC_ADD, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], R_MEMBASE ); + InstImm( "addi", PPC_ADDI, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], -4 ); + + InstImm( "lwzu", PPC_LWZU, R_EA, opStackIntRegisters[opStackDepth-1], 4 ); // source + InstImm( "stwu", PPC_STWU, R_EA, opStackIntRegisters[opStackDepth-2], 4 ); // dest + Inst( "b", PPC_BC | 0xfff8 , 16, 0, 0 ); // loop + opStackRegType[opStackDepth-1] = 0; + opStackRegType[opStackDepth-2] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-2] = 0; + opStackDepth -= 2; + break; + + case OP_JUMP: +#if DEBUG_VM + if(pass == 1) + printf("%08x JUMP\n",instruction); +#endif + assert(opStackDepth == 1); + assertInteger(opStackDepth-1); + + Inst( "rlwinm", PPC_RLWINM | ( 29 << 1 ), opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 2 ); + // FIXME: range check + Inst( "lwzx", PPC_LWZX, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_INSTRUCTIONS ); + Inst( "mtctr", PPC_MTSPR, opStackIntRegisters[opStackDepth-1], 9, 0 ); // move to count register + Inst( "bctr", PPC_BCCTR, 20, 0, 0 ); // jump to the count register + opStackRegType[opStackDepth-1] = 0; + opStackLoadInstructionAddr[opStackDepth-1] = 0; + opStackDepth -= 1; + break; + default: + Com_Error( ERR_DROP, "VM_CompilePPC: bad opcode %i at instruction %i, offset %i", op, instruction, pc ); + } + pop0 = pop1; + pop1 = op; + assert(opStackDepth >= 0); + assert(opStackDepth < OP_STACK_MAX_DEPTH); + + //printf("%4d\t%s\n",opStackDepth,opnames[op]); } - InstImm( "addi", PPC_ADDI, R_STACK, R_STACK, Constant4() ); // add R_STACK, R_STACK, imm - if(mainFunction == 1) - { - for(i = 0; i < OP_STACK_MAX_DEPTH; i++) - InstImm( "lwz", PPC_LWZ, opStackIntRegisters[i], R_REAL_STACK, i*4); - InstImm( "addi", PPC_ADDI, R_REAL_STACK, R_REAL_STACK, OP_STACK_MAX_DEPTH*4 ); + + Com_Printf( "VM file %s pass %d compiled to %i bytes of code\n", vm->name, (pass+1), compiledOfs*4 ); + + if ( pass == 0 ) { + // copy to an exact size buffer on the hunk + vm->codeLength = compiledOfs * 4; + vm->codeBase = Hunk_Alloc( vm->codeLength, h_low ); + Com_Memcpy( vm->codeBase, buf, vm->codeLength ); + + //printf("codeBase: %p\n",vm->codeBase); + + Z_Free( buf ); + + // offset all the instruction pointers for the new location + for ( i = 0 ; i < header->instructionCount ; i++ ) { + vm->instructionPointers[i] += (int)vm->codeBase; + //printf("%08x %08lx\n",i,vm->instructionPointers[i]); + } + + // go back over it in place now to fixup reletive jump targets + buf = (unsigned *)vm->codeBase; + } else if ( pass == 1 ) { + // clear the instruction cache for generated code + msync(vm->codeBase, vm->codeLength, MS_INVALIDATE); } - opStackDepth--; - opStackRegType[opStackDepth] = 0; - opStackLoadInstructionAddr[opStackDepth] = 0; - Inst( "blr", PPC_BCLR, 20, 0, 0 ); // branch unconditionally to link register - break; - case OP_LOAD4: - #if DEBUG_VM - if(pass == 1) - printf("%08x LOAD4\n",instruction); - #endif - // We should try to figure out whether to use LWZX or LFSX based - // on some kind of code analysis after subsequent passes. I think what - // we could do is store the compiled load instruction address along with - // the register type. When we hit the first mismatched operator, we go back - // and patch the load. Since LCC's operand stack should be at 0 depth by the - // time we hit a branch, this should work fairly well. FIXME FIXME FIXME. - assertInteger(opStackDepth-1); - opStackLoadInstructionAddr[opStackDepth-1] = &buf[ compiledOfs ]; - Inst( "lwzx", PPC_LWZX, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_MEMBASE );// load from memory base - opStackRegType[opStackDepth-1] = 1; - break; - case OP_LOAD2: - #if DEBUG_VM - if(pass == 1) - printf("%08x LOAD2\n",instruction); - #endif - assertInteger(opStackDepth-1); - opStackLoadInstructionAddr[opStackDepth-1] = 0; - Inst( "lhzx", PPC_LHZX, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_MEMBASE );// load from memory base - opStackRegType[opStackDepth-1] = 1; - break; - case OP_LOAD1: - #if DEBUG_VM - if(pass == 1) - printf("%08x LOAD1\n",instruction); - #endif - assertInteger(opStackDepth-1); - opStackLoadInstructionAddr[opStackDepth-1] = 0; - Inst( "lbzx", PPC_LBZX, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_MEMBASE );// load from memory base - opStackRegType[opStackDepth-1] = 1; - break; - case OP_STORE4: - #if DEBUG_VM - if(pass == 1) - printf("%08x STORE4\n",instruction); - #endif - assertInteger(opStackDepth-2); - if(opStackRegType[opStackDepth-1] == 1) - Inst( "stwx", PPC_STWX, opStackIntRegisters[opStackDepth-1], - opStackIntRegisters[opStackDepth-2], R_MEMBASE ); // store from memory base - else - Inst( "stfsx", PPC_STFSX, opStackFloatRegisters[opStackDepth-1], - opStackIntRegisters[opStackDepth-2], R_MEMBASE ); // store from memory base - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - break; - case OP_STORE2: - #if DEBUG_VM - if(pass == 1) - printf("%08x STORE2\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "sthx", PPC_STHX, opStackIntRegisters[opStackDepth-1], - opStackIntRegisters[opStackDepth-2], R_MEMBASE ); // store from memory base - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - break; - case OP_STORE1: - #if DEBUG_VM - if(pass == 1) - printf("%08x STORE1\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "stbx", PPC_STBX, opStackIntRegisters[opStackDepth-1], - opStackIntRegisters[opStackDepth-2], R_MEMBASE ); // store from memory base - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - break; - - case OP_EQ: - #if DEBUG_VM - if(pass == 1) - printf("%08x EQ\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 4, 2, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (v&0x3ffffff) ); - break; - case OP_NE: - #if DEBUG_VM - if(pass == 1) - printf("%08x NE\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 12, 2, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 4, 2, v ); - - break; - case OP_LTI: - #if DEBUG_VM - if(pass == 1) - printf("%08x LTI\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 4, 0, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 12, 0, v ); - break; - case OP_LEI: - #if DEBUG_VM - if(pass == 1) - printf("%08x LEI\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 12, 1, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 4, 1, v ); - break; - case OP_GTI: - #if DEBUG_VM - if(pass == 1) - printf("%08x GTI\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 4, 1, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 12, 1, v ); - break; - case OP_GEI: - #if DEBUG_VM - if(pass == 1) - printf("%08x GEI\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmp", PPC_CMP, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 12, 0, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 4, 0, v ); - break; - case OP_LTU: - #if DEBUG_VM - if(pass == 1) - printf("%08x LTU\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmpl", PPC_CMPL, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 4, 0, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 12, 0, v ); - break; - case OP_LEU: - #if DEBUG_VM - if(pass == 1) - printf("%08x LEU\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmpl", PPC_CMPL, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 12, 1, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 4, 1, v ); - break; - case OP_GTU: - #if DEBUG_VM - if(pass == 1) - printf("%08x GTU\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmpl", PPC_CMPL, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 4, 1, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 12, 1, v ); - break; - case OP_GEU: - #if DEBUG_VM - if(pass == 1) - printf("%08x GEU\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "cmpl", PPC_CMPL, 0, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 12, 0, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 4, 0, v ); - break; - - case OP_EQF: - #if DEBUG_VM - if(pass == 1) - printf("%08x EQF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 4, 2, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 12, 2, v ); - break; - case OP_NEF: - #if DEBUG_VM - if(pass == 1) - printf("%08x NEF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 12, 2, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 4, 2, v ); - break; - case OP_LTF: - #if DEBUG_VM - if(pass == 1) - printf("%08x LTF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 4, 0, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 12, 0, v ); - break; - case OP_LEF: - #if DEBUG_VM - if(pass == 1) - printf("%08x LEF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 12, 1, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 4, 1, v ); - break; - case OP_GTF: - #if DEBUG_VM - if(pass == 1) - printf("%08x GTF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 4, 1, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 12, 1, v ); - break; - case OP_GEF: - #if DEBUG_VM - if(pass == 1) - printf("%08x GEF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fcmpu", PPC_FCMPU, 0, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - i = Constant4(); - JUSED(i); - InstImm( "bc", PPC_BC, 12, 0, 8 ); - if ( pass==1 ) { - v = vm->instructionPointers[ i ] - (int)&buf[compiledOfs]; - } else { - v = 0; - } - Emit4("b", PPC_B | (unsigned int)(v&0x3ffffff) ); -// InstImm( "bc", PPC_BC, 4, 0, v ); - break; - - case OP_NEGI: - #if DEBUG_VM - if(pass == 1) - printf("%08x NEGI\n",instruction); - #endif - assertInteger(opStackDepth-1); - InstImm( "subfic", PPC_SUBFIC, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 0 ); - opStackLoadInstructionAddr[opStackDepth-1] = 0; - break; - case OP_ADD: - #if DEBUG_VM - if(pass == 1) - printf("%08x ADD\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "add", PPC_ADD, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-2] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_SUB: - #if DEBUG_VM - if(pass == 1) - printf("%08x SUB\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "subf", PPC_SUBF, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-2] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_DIVI: - #if DEBUG_VM - if(pass == 1) - printf("%08x DIVI\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "divw", PPC_DIVW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_DIVU: - #if DEBUG_VM - if(pass == 1) - printf("%08x DIVU\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "divwu", PPC_DIVWU, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_MODI: - #if DEBUG_VM - if(pass == 1) - printf("%08x MODI\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "divw", PPC_DIVW, R_EA, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - Inst( "mullw", PPC_MULLW, R_EA, opStackIntRegisters[opStackDepth-1], R_EA ); - Inst( "subf", PPC_SUBF, opStackIntRegisters[opStackDepth-2], R_EA, opStackIntRegisters[opStackDepth-2] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_MODU: - #if DEBUG_VM - if(pass == 1) - printf("%08x MODU\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "divwu", PPC_DIVWU, R_EA, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - Inst( "mullw", PPC_MULLW, R_EA, opStackIntRegisters[opStackDepth-1], R_EA ); - Inst( "subf", PPC_SUBF, opStackIntRegisters[opStackDepth-2], R_EA, opStackIntRegisters[opStackDepth-2] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_MULI: - case OP_MULU: - #if DEBUG_VM - if(pass == 1) - printf("%08x MULI\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "mullw", PPC_MULLW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-2] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_BAND: - #if DEBUG_VM - if(pass == 1) - printf("%08x BAND\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "and", PPC_AND, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_BOR: - #if DEBUG_VM - if(pass == 1) - printf("%08x BOR\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "or", PPC_OR, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_BXOR: - #if DEBUG_VM - if(pass == 1) - printf("%08x BXOR\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "xor", PPC_XOR, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_BCOM: - #if DEBUG_VM - if(pass == 1) - printf("%08x BCOM\n",instruction); - #endif - assertInteger(opStackDepth-1); - Inst( "nor", PPC_NOR, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1] ); - opStackLoadInstructionAddr[opStackDepth-1] = 0; - break; - case OP_LSH: - #if DEBUG_VM - if(pass == 1) - printf("%08x LSH\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "slw", PPC_SLW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_RSHI: - #if DEBUG_VM - if(pass == 1) - printf("%08x RSHI\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "sraw", PPC_SRAW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_RSHU: - #if DEBUG_VM - if(pass == 1) - printf("%08x RSHU\n",instruction); - #endif - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - Inst( "srw", PPC_SRW, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - - case OP_NEGF: - #if DEBUG_VM - if(pass == 1) - printf("%08x NEGF\n",instruction); - #endif - makeFloat(opStackDepth-1); - Inst( "fneg", PPC_FNEG, opStackFloatRegisters[opStackDepth-1], 0, opStackFloatRegisters[opStackDepth-1] ); - opStackLoadInstructionAddr[opStackDepth-1] = 0; - break; - case OP_ADDF: - #if DEBUG_VM - if(pass == 1) - printf("%08x ADDF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fadds", PPC_FADDS, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_SUBF: - #if DEBUG_VM - if(pass == 1) - printf("%08x SUBF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fsubs", PPC_FSUBS, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_DIVF: - #if DEBUG_VM - if(pass == 1) - printf("%08x DIVF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst( "fdivs", PPC_FDIVS, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - case OP_MULF: - #if DEBUG_VM - if(pass == 1) - printf("%08x MULF\n",instruction); - #endif - makeFloat(opStackDepth-1); - makeFloat(opStackDepth-2); - Inst4( "fmuls", PPC_FMULS, opStackFloatRegisters[opStackDepth-2], opStackFloatRegisters[opStackDepth-2], 0, opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - - case OP_CVIF: - #if DEBUG_VM - if(pass == 1) - printf("%08x CVIF\n",instruction); - #endif - assertInteger(opStackDepth-1); - //makeInteger(opStackDepth-1); - v = (int)&itofConvert; - InstImmU( "addis", PPC_ADDIS, R_EA, 0, (v >> 16)&0xffff ); - InstImmU( "ori", PPC_ORI, R_EA, R_EA, v & 0xffff ); - InstImmU( "xoris", PPC_XORIS, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 0x8000 ); - InstImm( "stw", PPC_STW, opStackIntRegisters[opStackDepth-1], R_EA, 12 ); - InstImm( "lfd", PPC_LFD, opStackFloatRegisters[opStackDepth-1], R_EA, 0 ); - Inst( "ori", PPC_ORI, 0, 0, 0); - Inst( "ori", PPC_ORI, 0, 0, 0); - Inst( "ori", PPC_ORI, 0, 0, 0); - InstImm( "lfd", PPC_LFD, 13, R_EA, 8 ); - Inst( "fsub", PPC_FSUB, opStackFloatRegisters[opStackDepth-1], 13, opStackFloatRegisters[opStackDepth-1] ); - opStackRegType[opStackDepth-1] = 2; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - // Inst( PPC_FRSP, R_TOP, 0, R_TOP ); - break; - case OP_CVFI: - #if DEBUG_VM - if(pass == 1) - printf("%08x CVFI\n",instruction); - #endif - makeFloat(opStackDepth-1); - - InstImm( "addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, opStackDepth*4); - - Inst( "fctiwz", PPC_FCTIWZ, opStackFloatRegisters[opStackDepth-1], 0, opStackFloatRegisters[opStackDepth-1] ); - Inst( "stfiwx", PPC_STFIWX, opStackFloatRegisters[opStackDepth-1], 0, R_OPSTACK ); // save value to opstack (dummy area now) - Inst( "ori", PPC_ORI, 0, 0, 0); - Inst( "ori", PPC_ORI, 0, 0, 0); - Inst( "ori", PPC_ORI, 0, 0, 0); - Inst( "ori", PPC_ORI, 0, 0, 0); - InstImm( "lwz", PPC_LWZ, opStackIntRegisters[opStackDepth-1], R_OPSTACK, 0 ); - - InstImm( "addi", PPC_ADDI, R_OPSTACK, R_OPSTACK, -opStackDepth*4); - - opStackRegType[opStackDepth-1] = 1; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - break; - case OP_SEX8: - #if DEBUG_VM - if(pass == 1) - printf("%08x SEX8\n",instruction); - #endif - assertInteger(opStackDepth-1); - Inst( "extsb", PPC_EXTSB, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 0 ); - opStackLoadInstructionAddr[opStackDepth-1] = 0; - break; - case OP_SEX16: - #if DEBUG_VM - if(pass == 1) - printf("%08x SEX16\n",instruction); - #endif - assertInteger(opStackDepth-1); - Inst( "extsh", PPC_EXTSH, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 0 ); - opStackLoadInstructionAddr[opStackDepth-1] = 0; - break; - - case OP_BLOCK_COPY: - v = Constant4() >> 2; - #if DEBUG_VM - if(pass == 1) - printf("%08x BLOCK_COPY\t%08lx\n",instruction,v<<2); - #endif - assert(opStackDepth >= 2); - assertInteger(opStackDepth-1); - assertInteger(opStackDepth-2); - InstImmU( "addi", PPC_ADDI, R_EA, 0, v ); // count - // FIXME: range check - Inst( "mtctr", PPC_MTSPR, R_EA, 9, 0 ); // move to count register - - Inst( "add", PPC_ADD, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_MEMBASE ); - InstImm( "addi", PPC_ADDI, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], -4 ); - Inst( "add", PPC_ADD, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], R_MEMBASE ); - InstImm( "addi", PPC_ADDI, opStackIntRegisters[opStackDepth-2], opStackIntRegisters[opStackDepth-2], -4 ); - - InstImm( "lwzu", PPC_LWZU, R_EA, opStackIntRegisters[opStackDepth-1], 4 ); // source - InstImm( "stwu", PPC_STWU, R_EA, opStackIntRegisters[opStackDepth-2], 4 ); // dest - Inst( "b", PPC_BC | 0xfff8 , 16, 0, 0 ); // loop - opStackRegType[opStackDepth-1] = 0; - opStackRegType[opStackDepth-2] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-2] = 0; - opStackDepth -= 2; - break; - - case OP_JUMP: - #if DEBUG_VM - if(pass == 1) - printf("%08x JUMP\n",instruction); - #endif - assert(opStackDepth == 1); - assertInteger(opStackDepth-1); - - Inst( "rlwinm", PPC_RLWINM | ( 29 << 1 ), opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], 2 ); - // FIXME: range check - Inst( "lwzx", PPC_LWZX, opStackIntRegisters[opStackDepth-1], opStackIntRegisters[opStackDepth-1], R_INSTRUCTIONS ); - Inst( "mtctr", PPC_MTSPR, opStackIntRegisters[opStackDepth-1], 9, 0 ); // move to count register - Inst( "bctr", PPC_BCCTR, 20, 0, 0 ); // jump to the count register - opStackRegType[opStackDepth-1] = 0; - opStackLoadInstructionAddr[opStackDepth-1] = 0; - opStackDepth -= 1; - break; - default: - Com_Error( ERR_DROP, "VM_CompilePPC: bad opcode %i at instruction %i, offset %i", op, instruction, pc ); - } - pop0 = pop1; - pop1 = op; - assert(opStackDepth >= 0); - assert(opStackDepth < OP_STACK_MAX_DEPTH); - - //printf("%4d\t%s\n",opStackDepth,opnames[op]); - } - - Com_Printf( "VM file %s pass %d compiled to %i bytes of code\n", vm->name, (pass+1), compiledOfs*4 ); - - if ( pass == 0 ) { - // copy to an exact size buffer on the hunk - vm->codeLength = compiledOfs * 4; - vm->codeBase = Hunk_Alloc( vm->codeLength, h_low ); - Com_Memcpy( vm->codeBase, buf, vm->codeLength ); - - //printf("codeBase: %p\n",vm->codeBase); - - Z_Free( buf ); - - // offset all the instruction pointers for the new location - for ( i = 0 ; i < header->instructionCount ; i++ ) { - vm->instructionPointers[i] += (int)vm->codeBase; - //printf("%08x %08lx\n",i,vm->instructionPointers[i]); - } - - // go back over it in place now to fixup reletive jump targets - buf = (unsigned *)vm->codeBase; - } else if ( pass == 1 ) { - // clear the instruction cache for generated code - msync(vm->codeBase, vm->codeLength, MS_INVALIDATE); - } - } - if(0) - { - char buf[256]; - printf("wait..\n"); - gets(buf); - } - Z_Free( jused ); + } + if(0) + { + char buf[256]; + printf("wait..\n"); + gets(buf); + } + Z_Free( jused ); } /* @@ -1762,7 +1762,7 @@ int VM_CallCompiled( vm_t *vm, int *args ) { //printf("VM_CallCompiled: %p %08lx %08lx %08lx\n", // vm, args[0],args[1],args[2]); - + // interpret the code vm->currentlyInterpreting = qtrue; @@ -1770,7 +1770,7 @@ int VM_CallCompiled( vm_t *vm, int *args ) { programStack = vm->programStack; stackOnEntry = programStack; image = vm->dataBase; - + // set up the stack frame programStack -= 48; @@ -1793,20 +1793,20 @@ int VM_CallCompiled( vm_t *vm, int *args ) { // no special asm code is needed here #ifdef __GNUC__ ((void(*)(int, int, int, int, int, int, int, int))(vm->codeBase))( - programStack, (int)&stack, - (int)image, vm->dataMask, (int)&AsmCall, - (int)vm->instructionPointers, vm->instructionPointersLength, - (int)vm ); + programStack, (int)&stack, + (int)image, vm->dataMask, (int)&AsmCall, + (int)vm->instructionPointers, vm->instructionPointersLength, + (int)vm ); #else ((void(*)(int, int, int, int, int, int, int, int))(vm->codeBase))( - programStack, (int)&stack, - (int)image, vm->dataMask, *(int *)&AsmCall /* skip function pointer header */, - (int)vm->instructionPointers, vm->instructionPointersLength, - (int)vm ); + programStack, (int)&stack, + (int)image, vm->dataMask, *(int *)&AsmCall /* skip function pointer header */, + (int)vm->instructionPointers, vm->instructionPointersLength, + (int)vm ); #endif vm->programStack = stackOnEntry; - vm->currentlyInterpreting = qfalse; + vm->currentlyInterpreting = qfalse; return stack[1]; } @@ -1822,89 +1822,89 @@ Put this at end of file because gcc messes up debug line numbers #ifdef __GNUC__ void AsmCall( void ) { -asm ( - // pop off the destination instruction -" lwz r12,0(r4) \n" // RG_TOP, 0(RG_OPSTACK) -" addi r4,r4,-4 \n" // RG_OPSTACK, RG_OPSTACK, -4 \n" - - // see if it is a system trap -" cmpwi r12,0 \n" // RG_TOP, 0 \n" -" bc 12,0, systemTrap \n" - - // calling another VM function, so lookup in instructionPointers -" slwi r12,r12,2 \n" // RG_TOP,RG_TOP,2 - // FIXME: range check -" lwzx r12, r8, r12 \n" // RG_TOP, RG_INSTRUCTIONS(RG_TOP) -" mtctr r12 \n" // RG_TOP -); + asm ( + // pop off the destination instruction + " lwz r12,0(r4) \n" // RG_TOP, 0(RG_OPSTACK) + " addi r4,r4,-4 \n" // RG_OPSTACK, RG_OPSTACK, -4 \n" + + // see if it is a system trap + " cmpwi r12,0 \n" // RG_TOP, 0 \n" + " bc 12,0, systemTrap \n" + + // calling another VM function, so lookup in instructionPointers + " slwi r12,r12,2 \n" // RG_TOP,RG_TOP,2 + // FIXME: range check + " lwzx r12, r8, r12 \n" // RG_TOP, RG_INSTRUCTIONS(RG_TOP) + " mtctr r12 \n" // RG_TOP + ); #if defined(MACOS_X) && defined(__OPTIMIZE__) - // On Mac OS X, gcc doesn't push a frame when we are optimized, so trying to tear it down results in grave disorder. -//#warning Mac OS X optimization on, not popping GCC AsmCall frame + // On Mac OS X, gcc doesn't push a frame when we are optimized, so trying to tear it down results in grave disorder. + //#warning Mac OS X optimization on, not popping GCC AsmCall frame #else - // Mac OS X Server and unoptimized compiles include a GCC AsmCall frame - asm ( -" lwz r1,0(r1) \n" // pop off the GCC AsmCall frame -" lmw r30,-8(r1) \n" -); -#endif - -asm ( -" bcctr 20,0 \n" // when it hits a leave, it will branch to the current link register - - // calling a system trap -"systemTrap: \n" - // convert to positive system call number -" subfic r12,r12,-1 \n" - - // save all our registers, including the current link register -" mflr r13 \n" // RG_SECOND // copy off our link register -" addi r1,r1,-92 \n" // required 24 byets of linkage, 32 bytes of parameter, plus our saves -" stw r3,56(r1) \n" // RG_STACK, -36(REAL_STACK) -" stw r4,60(r1) \n" // RG_OPSTACK, 4(RG_REAL_STACK) -" stw r5,64(r1) \n" // RG_MEMBASE, 8(RG_REAL_STACK) -" stw r6,68(r1) \n" // RG_MEMMASK, 12(RG_REAL_STACK) -" stw r7,72(r1) \n" // RG_ASMCALL, 16(RG_REAL_STACK) -" stw r8,76(r1) \n" // RG_INSTRUCTIONS, 20(RG_REAL_STACK) -" stw r9,80(r1) \n" // RG_NUM_INSTRUCTIONS, 24(RG_REAL_STACK) -" stw r10,84(r1) \n" // RG_VM, 28(RG_REAL_STACK) -" stw r13,88(r1) \n" // RG_SECOND, 32(RG_REAL_STACK) // link register - - // save the vm stack position to allow recursive VM entry -" addi r13,r3,-4 \n" // RG_TOP, RG_STACK, -4 -" stw r13,0(r10) \n" //RG_TOP, VM_OFFSET_PROGRAM_STACK(RG_VM) - - // save the system call number as the 0th parameter -" add r3,r3,r5 \n" // r3, RG_STACK, RG_MEMBASE // r3 is the first parameter to vm->systemCalls -" stwu r12,4(r3) \n" // RG_TOP, 4(r3) - - // make the system call with the address of all the VM parms as a parameter - // vm->systemCalls( &parms ) -" lwz r12,4(r10) \n" // RG_TOP, VM_OFFSET_SYSTEM_CALL(RG_VM) -" mtctr r12 \n" // RG_TOP -" bcctrl 20,0 \n" -" mr r12,r3 \n" // RG_TOP, r3 - - // pop our saved registers -" lwz r3,56(r1) \n" // RG_STACK, 0(RG_REAL_STACK) -" lwz r4,60(r1) \n" // RG_OPSTACK, 4(RG_REAL_STACK) -" lwz r5,64(r1) \n" // RG_MEMBASE, 8(RG_REAL_STACK) -" lwz r6,68(r1) \n" // RG_MEMMASK, 12(RG_REAL_STACK) -" lwz r7,72(r1) \n" // RG_ASMCALL, 16(RG_REAL_STACK) -" lwz r8,76(r1) \n" // RG_INSTRUCTIONS, 20(RG_REAL_STACK) -" lwz r9,80(r1) \n" // RG_NUM_INSTRUCTIONS, 24(RG_REAL_STACK) -" lwz r10,84(r1) \n" // RG_VM, 28(RG_REAL_STACK) -" lwz r13,88(r1) \n" // RG_SECOND, 32(RG_REAL_STACK) -" addi r1,r1,92 \n" // RG_REAL_STACK, RG_REAL_STACK, 36 - - // restore the old link register -" mtlr r13 \n" // RG_SECOND - - // save off the return value -" stwu r12,4(r4) \n" // RG_TOP, 0(RG_OPSTACK) - - // GCC adds its own prolog / epliog code - ); + // Mac OS X Server and unoptimized compiles include a GCC AsmCall frame + asm ( + " lwz r1,0(r1) \n" // pop off the GCC AsmCall frame + " lmw r30,-8(r1) \n" + ); +#endif + + asm ( + " bcctr 20,0 \n" // when it hits a leave, it will branch to the current link register + + // calling a system trap + "systemTrap: \n" + // convert to positive system call number + " subfic r12,r12,-1 \n" + + // save all our registers, including the current link register + " mflr r13 \n" // RG_SECOND // copy off our link register + " addi r1,r1,-92 \n" // required 24 byets of linkage, 32 bytes of parameter, plus our saves + " stw r3,56(r1) \n" // RG_STACK, -36(REAL_STACK) + " stw r4,60(r1) \n" // RG_OPSTACK, 4(RG_REAL_STACK) + " stw r5,64(r1) \n" // RG_MEMBASE, 8(RG_REAL_STACK) + " stw r6,68(r1) \n" // RG_MEMMASK, 12(RG_REAL_STACK) + " stw r7,72(r1) \n" // RG_ASMCALL, 16(RG_REAL_STACK) + " stw r8,76(r1) \n" // RG_INSTRUCTIONS, 20(RG_REAL_STACK) + " stw r9,80(r1) \n" // RG_NUM_INSTRUCTIONS, 24(RG_REAL_STACK) + " stw r10,84(r1) \n" // RG_VM, 28(RG_REAL_STACK) + " stw r13,88(r1) \n" // RG_SECOND, 32(RG_REAL_STACK) // link register + + // save the vm stack position to allow recursive VM entry + " addi r13,r3,-4 \n" // RG_TOP, RG_STACK, -4 + " stw r13,0(r10) \n" //RG_TOP, VM_OFFSET_PROGRAM_STACK(RG_VM) + + // save the system call number as the 0th parameter + " add r3,r3,r5 \n" // r3, RG_STACK, RG_MEMBASE // r3 is the first parameter to vm->systemCalls + " stwu r12,4(r3) \n" // RG_TOP, 4(r3) + + // make the system call with the address of all the VM parms as a parameter + // vm->systemCalls( &parms ) + " lwz r12,4(r10) \n" // RG_TOP, VM_OFFSET_SYSTEM_CALL(RG_VM) + " mtctr r12 \n" // RG_TOP + " bcctrl 20,0 \n" + " mr r12,r3 \n" // RG_TOP, r3 + + // pop our saved registers + " lwz r3,56(r1) \n" // RG_STACK, 0(RG_REAL_STACK) + " lwz r4,60(r1) \n" // RG_OPSTACK, 4(RG_REAL_STACK) + " lwz r5,64(r1) \n" // RG_MEMBASE, 8(RG_REAL_STACK) + " lwz r6,68(r1) \n" // RG_MEMMASK, 12(RG_REAL_STACK) + " lwz r7,72(r1) \n" // RG_ASMCALL, 16(RG_REAL_STACK) + " lwz r8,76(r1) \n" // RG_INSTRUCTIONS, 20(RG_REAL_STACK) + " lwz r9,80(r1) \n" // RG_NUM_INSTRUCTIONS, 24(RG_REAL_STACK) + " lwz r10,84(r1) \n" // RG_VM, 28(RG_REAL_STACK) + " lwz r13,88(r1) \n" // RG_SECOND, 32(RG_REAL_STACK) + " addi r1,r1,92 \n" // RG_REAL_STACK, RG_REAL_STACK, 36 + + // restore the old link register + " mtlr r13 \n" // RG_SECOND + + // save off the return value + " stwu r12,4(r4) \n" // RG_TOP, 0(RG_OPSTACK) + + // GCC adds its own prolog / epliog code + ); } #else @@ -1912,163 +1912,160 @@ asm ( void asm AsmCall( void ) { - // pop off the destination instruction + // pop off the destination instruction - lwz r12,0(r4) // RG_TOP, 0(RG_OPSTACK) + lwz r12,0(r4) // RG_TOP, 0(RG_OPSTACK) - addi r4,r4,-4 // RG_OPSTACK, RG_OPSTACK, -4 + addi r4,r4,-4 // RG_OPSTACK, RG_OPSTACK, -4 - // see if it is a system trap + // see if it is a system trap - cmpwi r12,0 // RG_TOP, 0 + cmpwi r12,0 // RG_TOP, 0 - bc 12,0, systemTrap + bc 12,0, systemTrap - // calling another VM function, so lookup in instructionPointers + // calling another VM function, so lookup in instructionPointers - slwi r12,r12,2 // RG_TOP,RG_TOP,2 + slwi r12,r12,2 // RG_TOP,RG_TOP,2 - // FIXME: range check + // FIXME: range check - lwzx r12, r8, r12 // RG_TOP, RG_INSTRUCTIONS(RG_TOP) + lwzx r12, r8, r12 // RG_TOP, RG_INSTRUCTIONS(RG_TOP) - mtctr r12 // RG_TOP + mtctr r12 // RG_TOP - bcctr 20,0 // when it hits a leave, it will branch to the current link register + bcctr 20,0 // when it hits a leave, it will branch to the current link register - // calling a system trap + // calling a system trap -systemTrap: + systemTrap: - // convert to positive system call number + // convert to positive system call number - subfic r12,r12,-1 + subfic r12,r12,-1 - // save all our registers, including the current link register + // save all our registers, including the current link register - mflr r13 // RG_SECOND // copy off our link register + mflr r13 // RG_SECOND // copy off our link register - addi r1,r1,-92 // required 24 byets of linkage, 32 bytes of parameter, plus our saves + addi r1,r1,-92 // required 24 byets of linkage, 32 bytes of parameter, plus our saves - stw r3,56(r1) // RG_STACK, -36(REAL_STACK) + stw r3,56(r1) // RG_STACK, -36(REAL_STACK) - stw r4,60(r1) // RG_OPSTACK, 4(RG_REAL_STACK) + stw r4,60(r1) // RG_OPSTACK, 4(RG_REAL_STACK) - stw r5,64(r1) // RG_MEMBASE, 8(RG_REAL_STACK) + stw r5,64(r1) // RG_MEMBASE, 8(RG_REAL_STACK) - stw r6,68(r1) // RG_MEMMASK, 12(RG_REAL_STACK) + stw r6,68(r1) // RG_MEMMASK, 12(RG_REAL_STACK) - stw r7,72(r1) // RG_ASMCALL, 16(RG_REAL_STACK) + stw r7,72(r1) // RG_ASMCALL, 16(RG_REAL_STACK) - stw r8,76(r1) // RG_INSTRUCTIONS, 20(RG_REAL_STACK) + stw r8,76(r1) // RG_INSTRUCTIONS, 20(RG_REAL_STACK) - stw r9,80(r1) // RG_NUM_INSTRUCTIONS, 24(RG_REAL_STACK) + stw r9,80(r1) // RG_NUM_INSTRUCTIONS, 24(RG_REAL_STACK) - stw r10,84(r1) // RG_VM, 28(RG_REAL_STACK) + stw r10,84(r1) // RG_VM, 28(RG_REAL_STACK) - stw r13,88(r1) // RG_SECOND, 32(RG_REAL_STACK) // link register + stw r13,88(r1) // RG_SECOND, 32(RG_REAL_STACK) // link register - // save the vm stack position to allow recursive VM entry + // save the vm stack position to allow recursive VM entry - addi r13,r3,-4 // RG_TOP, RG_STACK, -4 + addi r13,r3,-4 // RG_TOP, RG_STACK, -4 - stw r13,0(r10) //RG_TOP, VM_OFFSET_PROGRAM_STACK(RG_VM) + stw r13,0(r10) //RG_TOP, VM_OFFSET_PROGRAM_STACK(RG_VM) - // save the system call number as the 0th parameter + // save the system call number as the 0th parameter - add r3,r3,r5 // r3, RG_STACK, RG_MEMBASE // r3 is the first parameter to vm->systemCalls + add r3,r3,r5 // r3, RG_STACK, RG_MEMBASE // r3 is the first parameter to vm->systemCalls - stwu r12,4(r3) // RG_TOP, 4(r3) + stwu r12,4(r3) // RG_TOP, 4(r3) - // make the system call with the address of all the VM parms as a parameter + // make the system call with the address of all the VM parms as a parameter - // vm->systemCalls( &parms ) + // vm->systemCalls( &parms ) - lwz r12,4(r10) // RG_TOP, VM_OFFSET_SYSTEM_CALL(RG_VM) + lwz r12,4(r10) // RG_TOP, VM_OFFSET_SYSTEM_CALL(RG_VM) - - // perform macos cross fragment fixup crap - lwz r9,0(r12) + // perform macos cross fragment fixup crap - stw r2,52(r1) // save old TOC + lwz r9,0(r12) - lwz r2,4(r12) + stw r2,52(r1) // save old TOC - + lwz r2,4(r12) - mtctr r9 // RG_TOP - bcctrl 20,0 - + mtctr r9 // RG_TOP - lwz r2,52(r1) // restore TOC + bcctrl 20,0 - - mr r12,r3 // RG_TOP, r3 + lwz r2,52(r1) // restore TOC - // pop our saved registers - lwz r3,56(r1) // RG_STACK, 0(RG_REAL_STACK) + mr r12,r3 // RG_TOP, r3 - lwz r4,60(r1) // RG_OPSTACK, 4(RG_REAL_STACK) - lwz r5,64(r1) // RG_MEMBASE, 8(RG_REAL_STACK) - lwz r6,68(r1) // RG_MEMMASK, 12(RG_REAL_STACK) + // pop our saved registers - lwz r7,72(r1) // RG_ASMCALL, 16(RG_REAL_STACK) + lwz r3,56(r1) // RG_STACK, 0(RG_REAL_STACK) - lwz r8,76(r1) // RG_INSTRUCTIONS, 20(RG_REAL_STACK) + lwz r4,60(r1) // RG_OPSTACK, 4(RG_REAL_STACK) - lwz r9,80(r1) // RG_NUM_INSTRUCTIONS, 24(RG_REAL_STACK) + lwz r5,64(r1) // RG_MEMBASE, 8(RG_REAL_STACK) - lwz r10,84(r1) // RG_VM, 28(RG_REAL_STACK) + lwz r6,68(r1) // RG_MEMMASK, 12(RG_REAL_STACK) - lwz r13,88(r1) // RG_SECOND, 32(RG_REAL_STACK) + lwz r7,72(r1) // RG_ASMCALL, 16(RG_REAL_STACK) - addi r1,r1,92 // RG_REAL_STACK, RG_REAL_STACK, 36 + lwz r8,76(r1) // RG_INSTRUCTIONS, 20(RG_REAL_STACK) + lwz r9,80(r1) // RG_NUM_INSTRUCTIONS, 24(RG_REAL_STACK) + lwz r10,84(r1) // RG_VM, 28(RG_REAL_STACK) - // restore the old link register + lwz r13,88(r1) // RG_SECOND, 32(RG_REAL_STACK) - mtlr r13 // RG_SECOND + addi r1,r1,92 // RG_REAL_STACK, RG_REAL_STACK, 36 - // save off the return value + // restore the old link register - stwu r12,4(r4) // RG_TOP, 0(RG_OPSTACK) + mtlr r13 // RG_SECOND - blr + // save off the return value + + stwu r12,4(r4) // RG_TOP, 0(RG_OPSTACK) -} + blr +} #endif |