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-rw-r--r--code/qcommon/vm_sparc.c1648
-rw-r--r--code/qcommon/vm_sparc.h78
2 files changed, 1726 insertions, 0 deletions
diff --git a/code/qcommon/vm_sparc.c b/code/qcommon/vm_sparc.c
new file mode 100644
index 0000000..39f2202
--- /dev/null
+++ b/code/qcommon/vm_sparc.c
@@ -0,0 +1,1648 @@
+/*
+===========================================================================
+Copyright (C) 2009 David S. Miller <davem@davemloft.net>
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Quake III Arena source code is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+===========================================================================
+*/
+
+/* This code is based almost entirely upon the vm_powerpc.c code by
+ * Przemyslaw Iskra. All I did was make it work on Sparc :-) -DaveM
+ */
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <time.h>
+#include <stddef.h>
+
+#include "vm_local.h"
+#include "vm_sparc.h"
+
+/* exit() won't be called but use it because it is marked with noreturn */
+#define DIE( reason ) \
+ do { \
+ Com_Error(ERR_DROP, "vm_sparc compiler error: " reason "\n"); \
+ exit(1); \
+ } while(0)
+
+/* Select Length - first value on 32 bits, second on 64 */
+#ifdef __arch64__
+#define SL(a, b) (b)
+#else
+#define SL(a, b) (a)
+#endif
+
+#define rTMP G1
+#define rVMDATA G2
+#define rPSTACK G3
+#define rDATABASE G4
+#define rDATAMASK G5
+
+struct sparc_opcode {
+ const char *name;
+ unsigned int opcode;
+ unsigned int mask;
+ unsigned char args[4];
+#define ARG_NONE 0
+#define ARG_RS1 1
+#define ARG_RS2 2
+#define ARG_RD 3
+#define ARG_SIMM13 4
+#define ARG_DISP30 5
+#define ARG_IMM22 6
+#define ARG_DISP22 7
+#define ARG_SWTRAP 8
+};
+
+#define ARG_RS1_RS2_RD { ARG_RS1, ARG_RS2, ARG_RD }
+#define ARG_RS1_SIMM13_RD { ARG_RS1, ARG_SIMM13, ARG_RD }
+#define ARG_RS1_RS2 { ARG_RS1, ARG_RS2 }
+#define ARG_RS2_RD { ARG_RS2, ARG_RD }
+
+#define OP_MASK 0xc0000000
+#define OP2_MASK 0x01c00000
+#define OP3_MASK 0x01f80000
+#define OPF_MASK 0x00003fe0
+
+#define IMM 0x00002000
+
+#define FMT1(op) ((op) << 30), OP_MASK
+#define FMT2(op,op2) ((op) << 30)|((op2)<<22), (OP_MASK | OP2_MASK)
+#define FMT3(op,op3) ((op) << 30)|((op3)<<19), (OP_MASK | OP3_MASK | IMM)
+#define FMT3I(op,op3) ((op) << 30)|((op3)<<19)|IMM, (OP_MASK | OP3_MASK | IMM)
+#define FMT3F(op,op3,opf) ((op) << 30)|((op3)<<19)|((opf)<<5), \
+ (OP_MASK | OP3_MASK | OPF_MASK)
+
+#define BICC(A,COND) FMT2(0,((A<<7)|(COND<<3)|0x2))
+#define BFCC(A,COND) FMT2(0,((A<<7)|(COND<<3)|0x6))
+#define TICC(COND) FMT3I(0,((COND<<6)|0x3a))
+
+enum sparc_iname {
+ CALL, NOP, SETHI,
+
+ BA, BN, BNE, BE, BG, BLE, BGE, BL, BGU, BLEU, BCC, BCS,
+ BPOS, BNEG, BVC, BVS,
+
+ ADDI, ADD,
+ ANDI, AND,
+ ORI, OR,
+ XORI, XOR,
+ SUBI, SUB,
+ ANDNI, ANDN,
+ ORNI, ORN,
+ XNORI, XNOR,
+
+ UMULI, UMUL,
+ SMULI, SMUL,
+ UDIVI, UDIV,
+ SDIVI, SDIV,
+
+ SUBCCI, SUBCC,
+
+ SLLI, SLL,
+ SRLI, SRL,
+ SRAI, SRA,
+
+ WRI, WR,
+
+ SAVEI, SAVE,
+ RESTOREI, RESTORE,
+
+ TA,
+
+ JMPLI, JMPL,
+
+ LDXI, LDX,
+ LDUWI, LDUW,
+ LDUHI, LDUH,
+ LDUBI, LDUB,
+
+ STXI, STX,
+ STWI, STW,
+ STHI, STH,
+ STBI, STB,
+
+ LDFI, LDF,
+ STFI, STF,
+
+ FADD, FSUB, FCMP, FSTOI, FITOS, FNEG, FDIV, FMUL,
+ FBE, FBNE, FBL, FBGE, FBG, FBLE,
+};
+
+#define LDLI SL(LDUWI, LDXI)
+#define LDL SL(LDUW, LDX)
+#define STLI SL(STWI, STXI)
+#define STL SL(STW, STX)
+
+#define SPARC_NOP 0x01000000
+
+static const struct sparc_opcode sparc_opcodes[] = {
+ { "call", FMT1(1), { ARG_DISP30 }, },
+ { "nop", SPARC_NOP, 0xffffffff, { ARG_NONE }, }, /* sethi %hi(0), %g0 */
+ { "sethi", FMT2(0,4), { ARG_IMM22, ARG_RD }, },
+ { "ba", BICC(0,8), { ARG_DISP22 }, },
+ { "bn", BICC(0,0), { ARG_DISP22 }, },
+ { "bne", BICC(0,9), { ARG_DISP22 }, },
+ { "be", BICC(0,1), { ARG_DISP22 }, },
+ { "bg", BICC(0,10), { ARG_DISP22 }, },
+ { "ble", BICC(0,2), { ARG_DISP22 }, },
+ { "bge", BICC(0,11), { ARG_DISP22 }, },
+ { "bl", BICC(0,3), { ARG_DISP22 }, },
+ { "bgu", BICC(0,12), { ARG_DISP22 }, },
+ { "bleu", BICC(0,4), { ARG_DISP22 }, },
+ { "bcc", BICC(0,13), { ARG_DISP22 }, },
+ { "bcs", BICC(0,5), { ARG_DISP22 }, },
+ { "bpos", BICC(0,14), { ARG_DISP22 }, },
+ { "bneg", BICC(0,6), { ARG_DISP22 }, },
+ { "bvc", BICC(0,15), { ARG_DISP22 }, },
+ { "bvs", BICC(0,7), { ARG_DISP22 }, },
+
+ { "add", FMT3I(2, 0x00), ARG_RS1_SIMM13_RD, },
+ { "add", FMT3 (2, 0x00), ARG_RS1_RS2_RD, },
+ { "and", FMT3I(2, 0x01), ARG_RS1_SIMM13_RD, },
+ { "and", FMT3 (2, 0x01), ARG_RS1_RS2_RD, },
+ { "or", FMT3I(2, 0x02), ARG_RS1_SIMM13_RD, },
+ { "or", FMT3 (2, 0x02), ARG_RS1_RS2_RD, },
+ { "xor", FMT3I(2, 0x03), ARG_RS1_SIMM13_RD, },
+ { "xor", FMT3 (2, 0x03), ARG_RS1_RS2_RD, },
+ { "sub", FMT3I(2, 0x04), ARG_RS1_SIMM13_RD, },
+ { "sub", FMT3 (2, 0x04), ARG_RS1_RS2_RD, },
+ { "andn", FMT3I(2, 0x05), ARG_RS1_SIMM13_RD, },
+ { "andn", FMT3 (2, 0x05), ARG_RS1_RS2_RD, },
+ { "orn", FMT3I(2, 0x06), ARG_RS1_SIMM13_RD, },
+ { "orn", FMT3 (2, 0x06), ARG_RS1_RS2_RD, },
+ { "xnor", FMT3I(2, 0x07), ARG_RS1_SIMM13_RD, },
+ { "xnor", FMT3 (2, 0x07), ARG_RS1_RS2_RD, },
+
+ { "umul", FMT3I(2, 0x0a), ARG_RS1_SIMM13_RD, },
+ { "umul", FMT3 (2, 0x0a), ARG_RS1_RS2_RD, },
+ { "smul", FMT3I(2, 0x0b), ARG_RS1_SIMM13_RD, },
+ { "smul", FMT3 (2, 0x0b), ARG_RS1_RS2_RD, },
+ { "udiv", FMT3I(2, 0x0e), ARG_RS1_SIMM13_RD, },
+ { "udiv", FMT3 (2, 0x0e), ARG_RS1_RS2_RD, },
+ { "sdiv", FMT3I(2, 0x0f), ARG_RS1_SIMM13_RD, },
+ { "sdiv", FMT3 (2, 0x0f), ARG_RS1_RS2_RD, },
+
+ { "subcc", FMT3I(2, 0x14), ARG_RS1_SIMM13_RD, },
+ { "subcc", FMT3 (2, 0x14), ARG_RS1_RS2_RD, },
+
+ { "sll", FMT3I(2, 0x25), ARG_RS1_SIMM13_RD, },
+ { "sll", FMT3 (2, 0x25), ARG_RS1_RS2_RD, },
+ { "srl", FMT3I(2, 0x26), ARG_RS1_SIMM13_RD, },
+ { "srl", FMT3 (2, 0x26), ARG_RS1_RS2_RD, },
+ { "sra", FMT3I(2, 0x27), ARG_RS1_SIMM13_RD, },
+ { "sra", FMT3 (2, 0x27), ARG_RS1_RS2_RD, },
+
+ { "wr", FMT3I(2, 0x30), ARG_RS1_SIMM13_RD, },
+ { "wr", FMT3 (2, 0x30), ARG_RS1_SIMM13_RD, },
+
+ { "save", FMT3I(2,0x3c), ARG_RS1_SIMM13_RD, },
+ { "save", FMT3 (2,0x3c), ARG_RS1_RS2_RD, },
+ { "restore", FMT3I(2,0x3d), ARG_RS1_SIMM13_RD, },
+ { "restore", FMT3 (2,0x3d), ARG_RS1_RS2_RD, },
+ { "ta", TICC(8), { ARG_SWTRAP, ARG_NONE }, },
+ { "jmpl", FMT3I(2,0x38), ARG_RS1_SIMM13_RD, },
+ { "jmpl", FMT3 (2,0x38), ARG_RS1_RS2_RD, },
+
+ { "ldx", FMT3I(3,0x0b), ARG_RS1_SIMM13_RD, },
+ { "ldx", FMT3 (3,0x0b), ARG_RS1_RS2_RD, },
+ { "lduw", FMT3I(3,0x00), ARG_RS1_SIMM13_RD, },
+ { "lduw", FMT3 (3,0x00), ARG_RS1_RS2_RD, },
+ { "lduh", FMT3I(3,0x02), ARG_RS1_SIMM13_RD, },
+ { "lduh", FMT3 (3,0x02), ARG_RS1_RS2_RD, },
+ { "ldub", FMT3I(3,0x01), ARG_RS1_SIMM13_RD, },
+ { "ldub", FMT3 (3,0x01), ARG_RS1_RS2_RD, },
+
+ { "stx", FMT3I(3,0x0e), ARG_RS1_SIMM13_RD, },
+ { "stx", FMT3 (3,0x0e), ARG_RS1_RS2_RD, },
+ { "stw", FMT3I(3,0x04), ARG_RS1_SIMM13_RD, },
+ { "stw", FMT3 (3,0x04), ARG_RS1_RS2_RD, },
+ { "sth", FMT3I(3,0x06), ARG_RS1_SIMM13_RD, },
+ { "sth", FMT3 (3,0x06), ARG_RS1_RS2_RD, },
+ { "stb", FMT3I(3,0x05), ARG_RS1_SIMM13_RD, },
+ { "stb", FMT3 (3,0x05), ARG_RS1_RS2_RD, },
+
+ { "ldf", FMT3I(3,0x20), ARG_RS1_SIMM13_RD, },
+ { "ldf", FMT3 (3,0x20), ARG_RS1_RS2_RD, },
+ { "stf", FMT3I(3,0x24), ARG_RS1_SIMM13_RD, },
+ { "stf", FMT3 (3,0x24), ARG_RS1_RS2_RD, },
+
+ { "fadd", FMT3F(2,0x34,0x041), ARG_RS1_RS2_RD, },
+ { "fsub", FMT3F(2,0x34,0x045), ARG_RS1_RS2_RD, },
+ { "fcmp", FMT3F(2,0x35,0x051), ARG_RS1_RS2, },
+ { "fstoi", FMT3F(2,0x34,0x0d1), ARG_RS2_RD, },
+ { "fitos", FMT3F(2,0x34,0x0c4), ARG_RS2_RD, },
+
+ { "fneg", FMT3F(2,0x34,0x005), ARG_RS2_RD, },
+ { "fdiv", FMT3F(2,0x34,0x04d), ARG_RS1_RS2_RD, },
+ { "fmul", FMT3F(2,0x34,0x049), ARG_RS1_RS2_RD, },
+
+ { "fbe", BFCC(0,9), { ARG_DISP22 }, },
+ { "fbne", BFCC(0,1), { ARG_DISP22 }, },
+ { "fbl", BFCC(0,4), { ARG_DISP22 }, },
+ { "fbge", BFCC(0,11), { ARG_DISP22 }, },
+ { "fbg", BFCC(0,6), { ARG_DISP22 }, },
+ { "fble", BFCC(0,13), { ARG_DISP22 }, },
+};
+#define SPARC_NUM_OPCODES (sizeof(sparc_opcodes) / sizeof(sparc_opcodes[0]))
+
+#define RS1(X) (((X) & 0x1f) << 14)
+#define RS2(X) (((X) & 0x1f) << 0)
+#define RD(X) (((X) & 0x1f) << 25)
+#define SIMM13(X) (((X) & 0x1fff) << 0)
+#define IMM22(X) (((X) & 0x3fffff) << 0)
+#define DISP30(X) ((((X) >> 2) & 0x3fffffff) << 0)
+#define DISP22(X) ((((X) >> 2) & 0x3fffff) << 0)
+#define SWTRAP(X) (((X) & 0x7f) << 0)
+
+#define SIMM13_P(X) ((unsigned int) (X) + 0x1000 < 0x2000)
+
+static void vimm(unsigned int val, int bits, int shift, int sgned, int arg_index)
+{
+ unsigned int orig_val = val;
+ int orig_bits = bits;
+
+ if (sgned) {
+ int x = (int) val;
+ if (x < 0)
+ x = -x;
+ val = (unsigned int) x;
+ bits--;
+ }
+ if (val & ~((1U << bits) - 1U)) {
+ Com_Printf("VM ERROR: immediate value 0x%08x out of %d bit range\n",
+ orig_val, orig_bits);
+ DIE("sparc VM bug");
+ }
+}
+
+static unsigned int sparc_assemble(enum sparc_iname iname, const int argc, const int *argv)
+{
+ const struct sparc_opcode *op = &sparc_opcodes[iname];
+ unsigned int insn = op->opcode;
+ int i, flt, rd_flt;
+
+ flt = (op->name[0] == 'f');
+ rd_flt = flt || (op->name[2] == 'f');
+
+ for (i = 0; op->args[i] != ARG_NONE; i++) {
+ int val = argv[i];
+
+ switch (op->args[i]) {
+ case ARG_RS1: insn |= RS1(val); break;
+ case ARG_RS2: insn |= RS2(val); break;
+ case ARG_RD: insn |= RD(val); break;
+ case ARG_SIMM13: insn |= SIMM13(val); vimm(val,13,0,1,i); break;
+ case ARG_DISP30: insn |= DISP30(val); vimm(val,30,0,1,i); break;
+ case ARG_IMM22: insn |= IMM22(val); vimm(val,22,0,0,i); break;
+ case ARG_DISP22: insn |= DISP22(val); vimm(val,22,0,1,i); break;
+ case ARG_SWTRAP: insn |= SWTRAP(val); vimm(val,7,0,0,i); break;
+ }
+ }
+
+ return insn;
+}
+
+#define IN(inst, args...) \
+({ const int argv[] = { args }; \
+ const int argc = sizeof(argv) / sizeof(argv[0]); \
+ sparc_assemble(inst, argc, argv); \
+})
+
+#if 0
+static void pgreg(int reg_num, int arg_index, int flt)
+{
+ if (!flt) {
+ const char *fmt[] = { "%g", "%o", "%l", "%i" };
+
+ Com_Printf("%s%s%d",
+ (arg_index ? ", " : ""),
+ fmt[reg_num >> 3], reg_num & 7);
+ } else
+ Com_Printf("%s%%f%d", (arg_index ? ", " : ""), reg_num);
+}
+
+static void pimm(unsigned int val, int bits, int shift, int sgned, int arg_index)
+
+{
+ val >>= shift;
+ val &= ((1 << bits) - 1);
+ if (sgned) {
+ int sval = val << (32 - bits);
+ sval >>= (32 - bits);
+ Com_Printf("%s%d",
+ (arg_index ? ", " : ""), sval);
+ } else
+ Com_Printf("%s0x%08x",
+ (arg_index ? ", " : ""), val);
+}
+
+static void sparc_disassemble(unsigned int insn)
+{
+ int op_idx;
+
+ for (op_idx = 0; op_idx < SPARC_NUM_OPCODES; op_idx++) {
+ const struct sparc_opcode *op = &sparc_opcodes[op_idx];
+ int i, flt, rd_flt;
+
+ if ((insn & op->mask) != op->opcode)
+ continue;
+
+ flt = (op->name[0] == 'f');
+ rd_flt = flt || (op->name[2] == 'f');
+
+ Com_Printf("ASM: %7s\t", op->name);
+ for (i = 0; op->args[i] != ARG_NONE; i++) {
+ switch (op->args[i]) {
+ case ARG_RS1: pgreg((insn >> 14) & 0x1f, i, flt); break;
+ case ARG_RS2: pgreg((insn >> 0) & 0x1f, i, flt); break;
+ case ARG_RD: pgreg((insn >> 25) & 0x1f, i, rd_flt); break;
+ case ARG_SIMM13: pimm(insn, 13, 0, 1, i); break;
+ case ARG_DISP30: pimm(insn, 30, 0, 0, i); break;
+ case ARG_IMM22: pimm(insn, 22, 0, 0, i); break;
+ case ARG_DISP22: pimm(insn, 22, 0, 0, i); break;
+ case ARG_SWTRAP: pimm(insn, 7, 0, 0, i); break;
+ }
+ }
+ Com_Printf("\n");
+ return;
+ }
+}
+#endif
+
+/*
+ * opcode information table:
+ * - length of immediate value
+ * - returned register type
+ * - required register(s) type
+ */
+#define opImm0 0x0000 /* no immediate */
+#define opImm1 0x0001 /* 1 byte immadiate value after opcode */
+#define opImm4 0x0002 /* 4 bytes immediate value after opcode */
+
+#define opRet0 0x0000 /* returns nothing */
+#define opRetI 0x0004 /* returns integer */
+#define opRetF 0x0008 /* returns float */
+#define opRetIF (opRetI | opRetF) /* returns integer or float */
+
+#define opArg0 0x0000 /* requires nothing */
+#define opArgI 0x0010 /* requires integer(s) */
+#define opArgF 0x0020 /* requires float(s) */
+#define opArgIF (opArgI | opArgF) /* requires integer or float */
+
+#define opArg2I 0x0040 /* requires second argument, integer */
+#define opArg2F 0x0080 /* requires second argument, float */
+#define opArg2IF (opArg2I | opArg2F) /* requires second argument, integer or float */
+
+static const unsigned char vm_opInfo[256] =
+{
+ [OP_UNDEF] = opImm0,
+ [OP_IGNORE] = opImm0,
+ [OP_BREAK] = opImm0,
+ [OP_ENTER] = opImm4,
+ /* OP_LEAVE has to accept floats, they will be converted to ints */
+ [OP_LEAVE] = opImm4 | opRet0 | opArgIF,
+ /* only STORE4 and POP use values from OP_CALL,
+ * no need to convert floats back */
+ [OP_CALL] = opImm0 | opRetI | opArgI,
+ [OP_PUSH] = opImm0 | opRetIF,
+ [OP_POP] = opImm0 | opRet0 | opArgIF,
+ [OP_CONST] = opImm4 | opRetIF,
+ [OP_LOCAL] = opImm4 | opRetI,
+ [OP_JUMP] = opImm0 | opRet0 | opArgI,
+
+ [OP_EQ] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_NE] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_LTI] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_LEI] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_GTI] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_GEI] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_LTU] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_LEU] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_GTU] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_GEU] = opImm4 | opRet0 | opArgI | opArg2I,
+ [OP_EQF] = opImm4 | opRet0 | opArgF | opArg2F,
+ [OP_NEF] = opImm4 | opRet0 | opArgF | opArg2F,
+ [OP_LTF] = opImm4 | opRet0 | opArgF | opArg2F,
+ [OP_LEF] = opImm4 | opRet0 | opArgF | opArg2F,
+ [OP_GTF] = opImm4 | opRet0 | opArgF | opArg2F,
+ [OP_GEF] = opImm4 | opRet0 | opArgF | opArg2F,
+
+ [OP_LOAD1] = opImm0 | opRetI | opArgI,
+ [OP_LOAD2] = opImm0 | opRetI | opArgI,
+ [OP_LOAD4] = opImm0 | opRetIF| opArgI,
+ [OP_STORE1] = opImm0 | opRet0 | opArgI | opArg2I,
+ [OP_STORE2] = opImm0 | opRet0 | opArgI | opArg2I,
+ [OP_STORE4] = opImm0 | opRet0 | opArgIF| opArg2I,
+ [OP_ARG] = opImm1 | opRet0 | opArgIF,
+ [OP_BLOCK_COPY] = opImm4 | opRet0 | opArgI | opArg2I,
+
+ [OP_SEX8] = opImm0 | opRetI | opArgI,
+ [OP_SEX16] = opImm0 | opRetI | opArgI,
+ [OP_NEGI] = opImm0 | opRetI | opArgI,
+ [OP_ADD] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_SUB] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_DIVI] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_DIVU] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_MODI] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_MODU] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_MULI] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_MULU] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_BAND] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_BOR] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_BXOR] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_BCOM] = opImm0 | opRetI | opArgI,
+ [OP_LSH] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_RSHI] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_RSHU] = opImm0 | opRetI | opArgI | opArg2I,
+ [OP_NEGF] = opImm0 | opRetF | opArgF,
+ [OP_ADDF] = opImm0 | opRetF | opArgF | opArg2F,
+ [OP_SUBF] = opImm0 | opRetF | opArgF | opArg2F,
+ [OP_DIVF] = opImm0 | opRetF | opArgF | opArg2F,
+ [OP_MULF] = opImm0 | opRetF | opArgF | opArg2F,
+ [OP_CVIF] = opImm0 | opRetF | opArgI,
+ [OP_CVFI] = opImm0 | opRetI | opArgF,
+};
+
+static const char *opnames[256] = {
+ "OP_UNDEF", "OP_IGNORE", "OP_BREAK", "OP_ENTER", "OP_LEAVE", "OP_CALL",
+ "OP_PUSH", "OP_POP", "OP_CONST", "OP_LOCAL", "OP_JUMP",
+ "OP_EQ", "OP_NE", "OP_LTI", "OP_LEI", "OP_GTI", "OP_GEI",
+ "OP_LTU", "OP_LEU", "OP_GTU", "OP_GEU", "OP_EQF", "OP_NEF",
+ "OP_LTF", "OP_LEF", "OP_GTF", "OP_GEF",
+ "OP_LOAD1", "OP_LOAD2", "OP_LOAD4", "OP_STORE1", "OP_STORE2",
+ "OP_STORE4", "OP_ARG", "OP_BLOCK_COPY",
+ "OP_SEX8", "OP_SEX16",
+ "OP_NEGI", "OP_ADD", "OP_SUB", "OP_DIVI", "OP_DIVU",
+ "OP_MODI", "OP_MODU", "OP_MULI", "OP_MULU", "OP_BAND",
+ "OP_BOR", "OP_BXOR", "OP_BCOM", "OP_LSH", "OP_RSHI", "OP_RSHU",
+ "OP_NEGF", "OP_ADDF", "OP_SUBF", "OP_DIVF", "OP_MULF",
+ "OP_CVIF", "OP_CVFI",
+};
+
+static void VM_Destroy_Compiled(vm_t *vm)
+{
+ if (vm->codeBase) {
+ if (munmap(vm->codeBase, vm->codeLength))
+ Com_Printf(S_COLOR_RED "Memory unmap failed, possible memory leak\n");
+ }
+ vm->codeBase = NULL;
+}
+
+typedef struct VM_Data {
+ unsigned int dataLength;
+ unsigned int codeLength;
+ unsigned int *CallThunk;
+ int (*AsmCall)(int, int);
+ void (*BlockCopy)(unsigned int, unsigned int, unsigned int);
+ unsigned int *iPointers;
+ unsigned int data[0];
+} vm_data_t;
+
+#ifdef offsetof
+# define VM_Data_Offset(field) offsetof(vm_data_t, field)
+#else
+# define OFFSET(structName, field) \
+ ((void *)&(((structName *)NULL)->field) - NULL)
+# define VM_Data_Offset(field) OFFSET(vm_data_t, field)
+#endif
+
+struct src_insn {
+ unsigned char op;
+ unsigned int i_count;
+
+ union {
+ unsigned int i;
+ signed int si;
+ signed short ss[2];
+ unsigned short us[2];
+ unsigned char b;
+ } arg;
+
+ unsigned char dst_reg_flags;
+ unsigned char src1_reg_flags;
+ unsigned char src2_reg_flags;
+#define REG_FLAGS_FLOAT 0x1
+
+ struct src_insn *next;
+};
+
+struct dst_insn;
+struct jump_insn {
+ enum sparc_iname jump_iname;
+ int jump_dest_insn;
+ struct dst_insn *parent;
+ struct jump_insn *next;
+};
+
+struct dst_insn {
+ struct dst_insn *next;
+
+ unsigned int count;
+ unsigned int i_count;
+
+ struct jump_insn *jump;
+ unsigned int length;
+ unsigned int code[0];
+};
+
+#define HUNK_SIZE 29
+struct data_hunk {
+ struct data_hunk *next;
+ int count;
+ unsigned int data[HUNK_SIZE];
+};
+
+struct func_info {
+ struct src_insn *first;
+ struct src_insn *last;
+ int has_call;
+ int need_float_tmp;
+
+ struct src_insn *cached_const;
+
+ int stack_space;
+ int gpr_pos;
+#define rFIRST(fp) ((fp)->gpr_pos - 1)
+#define rSECOND(fp) ((fp)->gpr_pos - 2)
+#define POP_GPR(fp) ((fp)->gpr_pos--)
+#define PUSH_GPR(fp) ((fp)->gpr_pos++)
+
+ int fpr_pos;
+#define fFIRST(fp) ((fp)->fpr_pos - 1)
+#define fSECOND(fp) ((fp)->fpr_pos - 2)
+#define POP_FPR(fp) ((fp)->fpr_pos--)
+#define PUSH_FPR(fp) ((fp)->fpr_pos++)
+
+#define INSN_BUF_SIZE 50
+ unsigned int insn_buf[INSN_BUF_SIZE];
+ int insn_index;
+
+ int saved_icount;
+ int force_emit;
+
+ struct jump_insn *jump_first;
+ struct jump_insn *jump_last;
+
+ struct dst_insn *dst_first;
+ struct dst_insn *dst_last;
+ int dst_count;
+
+ struct dst_insn **dst_by_i_count;
+
+ struct data_hunk *data_first;
+ int data_num;
+};
+
+#define THUNK_ICOUNT -1
+
+static unsigned int sparc_push_data(struct func_info * const fp, unsigned int val)
+{
+ struct data_hunk *last, *dp = fp->data_first;
+ int off = 0;
+
+ last = NULL;
+ while (dp) {
+ int i;
+
+ for (i = 0; i < dp->count; i++) {
+ if (dp->data[i] == val) {
+ off += i;
+ return VM_Data_Offset(data[off]);
+ }
+ }
+ off += dp->count;
+ last = dp;
+ dp = dp->next;
+ }
+
+ dp = last;
+ if (!dp || dp->count >= HUNK_SIZE) {
+ struct data_hunk *new = Z_Malloc(sizeof(*new));
+ if (!dp)
+ fp->data_first = new;
+ else
+ dp->next = new;
+ dp = new;
+ dp->count = 0;
+ dp->next = NULL;
+ }
+ dp->data[dp->count++] = val;
+ fp->data_num = off + 1;
+ return VM_Data_Offset(data[off]);
+}
+
+static void dst_insn_insert_tail(struct func_info * const fp,
+ struct dst_insn *dp)
+{
+ if (!fp->dst_first) {
+ fp->dst_first = fp->dst_last = dp;
+ } else {
+ fp->dst_last->next = dp;
+ fp->dst_last = dp;
+ }
+}
+
+static void jump_insn_insert_tail(struct func_info * const fp,
+ struct jump_insn *jp)
+{
+ if (!fp->jump_first) {
+ fp->jump_first = fp->jump_last = jp;
+ } else {
+ fp->jump_last->next = jp;
+ fp->jump_last = jp;
+ }
+}
+
+static struct dst_insn *dst_new(struct func_info * const fp, unsigned int length,
+ struct jump_insn *jp, int insns_size)
+{
+ struct dst_insn *dp = Z_Malloc(sizeof(struct dst_insn) + insns_size);
+
+ dp->length = length;
+ dp->jump = jp;
+ dp->count = fp->dst_count++;
+ dp->i_count = fp->saved_icount;
+ dp->next = NULL;
+ if (fp->saved_icount != THUNK_ICOUNT)
+ fp->dst_by_i_count[fp->saved_icount] = dp;
+
+ return dp;
+}
+
+static void dst_insn_append(struct func_info * const fp)
+{
+ int insns_size = (sizeof(unsigned int) * fp->insn_index);
+ struct dst_insn *dp;
+
+ dp = dst_new(fp, fp->insn_index, NULL, insns_size);
+ if (insns_size)
+ memcpy(&dp->code[0], fp->insn_buf, insns_size);
+ dst_insn_insert_tail(fp, dp);
+
+ fp->insn_index = 0;
+}
+
+static void jump_insn_append(struct func_info * const fp, enum sparc_iname iname, int dest)
+{
+ struct jump_insn *jp = Z_Malloc(sizeof(*jp));
+ struct dst_insn *dp;
+
+ dp = dst_new(fp, 2, jp, 0);
+
+ jp->jump_iname = iname;
+ jp->jump_dest_insn = dest;
+ jp->parent = dp;
+ jp->next = NULL;
+
+ jump_insn_insert_tail(fp, jp);
+ dst_insn_insert_tail(fp, dp);
+}
+
+static void start_emit(struct func_info * const fp, int i_count)
+{
+ fp->saved_icount = i_count;
+ fp->insn_index = 0;
+ fp->force_emit = 0;
+}
+
+static void __do_emit_one(struct func_info * const fp, unsigned int insn)
+{
+ fp->insn_buf[fp->insn_index++] = insn;
+}
+
+#define in(inst, args...) __do_emit_one(fp, IN(inst, args))
+
+static void end_emit(struct func_info * const fp)
+{
+ if (fp->insn_index || fp->force_emit)
+ dst_insn_append(fp);
+}
+
+static void emit_jump(struct func_info * const fp, enum sparc_iname iname, int dest)
+{
+ end_emit(fp);
+ jump_insn_append(fp, iname, dest);
+}
+
+static void analyze_function(struct func_info * const fp)
+{
+ struct src_insn *value_provider[20] = { NULL };
+ struct src_insn *sp = fp->first;
+ int opstack_depth = 0;
+
+ while ((sp = sp->next) != NULL) {
+ unsigned char opi, op = sp->op;
+
+ opi = vm_opInfo[op];
+ if (opi & opArgIF) {
+ struct src_insn *vp = value_provider[--opstack_depth];
+ unsigned char vpopi = vm_opInfo[vp->op];
+
+ if ((opi & opArgI) && (vpopi & opRetI)) {
+ /* src1 and dst are integers */
+ } else if ((opi & opArgF) && (vpopi & opRetF)) {
+ /* src1 and dst are floats */
+ vp->dst_reg_flags |= REG_FLAGS_FLOAT;
+ sp->src1_reg_flags = REG_FLAGS_FLOAT;
+ } else {
+ /* illegal combination */
+ DIE("unrecognized instruction combination");
+ }
+ }
+ if (opi & opArg2IF) {
+ struct src_insn *vp = value_provider[--opstack_depth];
+ unsigned char vpopi = vm_opInfo[vp->op];
+
+ if ((opi & opArg2I) && (vpopi & opRetI)) {
+ /* src2 and dst are integers */
+ } else if ( (opi & opArg2F) && (vpopi & opRetF) ) {
+ /* src2 and dst are floats */
+ vp->dst_reg_flags |= REG_FLAGS_FLOAT;
+ sp->src2_reg_flags = REG_FLAGS_FLOAT;
+ } else {
+ /* illegal combination */
+ DIE("unrecognized instruction combination");
+ }
+ }
+ if (opi & opRetIF) {
+ value_provider[opstack_depth] = sp;
+ opstack_depth++;
+ }
+ }
+}
+
+static int asmcall(int call, int pstack)
+{
+ vm_t *savedVM = currentVM;
+ int i, ret;
+
+ currentVM->programStack = pstack - 4;
+ if (sizeof(intptr_t) == sizeof(int)) {
+ intptr_t *argPosition = (intptr_t *)((byte *)currentVM->dataBase + pstack + 4);
+ argPosition[0] = -1 - call;
+ ret = currentVM->systemCall(argPosition);
+ } else {
+ intptr_t args[11];
+
+ args[0] = -1 - call;
+ int *argPosition = (int *)((byte *)currentVM->dataBase + pstack + 4);
+ for( i = 1; i < 11; i++ )
+ args[i] = argPosition[i];
+
+ ret = currentVM->systemCall(args);
+ }
+
+ currentVM = savedVM;
+
+ return ret;
+}
+
+static void blockcopy(unsigned int dest, unsigned int src, unsigned int count)
+{
+ unsigned int dataMask = currentVM->dataMask;
+
+ if ((dest & dataMask) != dest ||
+ (src & dataMask) != src ||
+ ((dest+count) & dataMask) != dest + count ||
+ ((src+count) & dataMask) != src + count) {
+ DIE("OP_BLOCK_COPY out of range!");
+ }
+
+ memcpy(currentVM->dataBase+dest, currentVM->dataBase+src, count);
+}
+
+static void do_emit_const(struct func_info * const fp, struct src_insn *sp)
+{
+ start_emit(fp, sp->i_count);
+ if (sp->dst_reg_flags & REG_FLAGS_FLOAT) {
+ in(LDFI, rVMDATA, sparc_push_data(fp, sp->arg.i), fFIRST(fp));
+ } else {
+ if ((sp->arg.i & ~0x3ff) == 0) {
+ in(ORI, G0, sp->arg.i & 0x3ff, rFIRST(fp));
+ } else if ((sp->arg.i & 0x3ff) == 0) {
+ in(SETHI, sp->arg.i >> 10, rFIRST(fp));
+ } else {
+ in(SETHI, sp->arg.i >> 10, rFIRST(fp));
+ in(ORI, rFIRST(fp), sp->arg.i & 0x3ff, rFIRST(fp));
+ }
+ }
+ end_emit(fp);
+}
+
+#define MAYBE_EMIT_CONST(fp) \
+do { if ((fp)->cached_const) { \
+ int saved_i_count = (fp)->saved_icount; \
+ do_emit_const(fp, (fp)->cached_const); \
+ (fp)->saved_icount = saved_i_count; \
+ } \
+} while (0)
+
+#define EMIT_FALSE_CONST(fp) \
+do { int saved_i_count = (fp)->saved_icount; \
+ (fp)->saved_icount = (fp)->cached_const->i_count; \
+ dst_insn_append(fp); \
+ (fp)->saved_icount = saved_i_count; \
+} while (0)
+
+static void compile_one_insn(struct func_info * const fp, struct src_insn *sp)
+{
+ start_emit(fp, sp->i_count);
+
+ switch (sp->op) {
+ default:
+ Com_Printf("VM: Unhandled opcode 0x%02x[%s]\n",
+ sp->op,
+ opnames[sp->op] ? opnames[sp->op] : "UNKNOWN");
+ DIE("Unsupported opcode");
+ break;
+
+ case OP_ENTER: {
+ int stack = SL(64, 128);
+
+ if (fp->need_float_tmp)
+ stack += 16;
+
+ in(SAVEI, O6, -stack, O6);
+ if (!SIMM13_P(sp->arg.si)) {
+ in(SETHI, sp->arg.i >> 10, rTMP);
+ in(ORI, rTMP, sp->arg.i & 0x3ff, rTMP);
+ in(SUB, rPSTACK, rTMP, rPSTACK);
+ } else
+ in(SUBI, rPSTACK, sp->arg.si, rPSTACK);
+ break;
+ }
+ case OP_LEAVE:
+ if (fp->cached_const && SIMM13_P(fp->cached_const->arg.si)) {
+ EMIT_FALSE_CONST(fp);
+ if (fp->cached_const->src1_reg_flags & REG_FLAGS_FLOAT)
+ DIE("constant float in OP_LEAVE");
+
+ if (!SIMM13_P(sp->arg.si)) {
+ in(SETHI, sp->arg.i >> 10, rTMP);
+ in(ORI, rTMP, sp->arg.i & 0x3ff, rTMP);
+ in(ADD, rPSTACK, rTMP, rPSTACK);
+ } else
+ in(ADDI, rPSTACK, sp->arg.si, rPSTACK);
+ in(JMPLI, I7, 8, G0);
+ in(RESTOREI, G0, fp->cached_const->arg.si, O0);
+ POP_GPR(fp);
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ if (!SIMM13_P(sp->arg.si)) {
+ in(SETHI, sp->arg.i >> 10, rTMP);
+ in(ORI, rTMP, sp->arg.i & 0x3ff, rTMP);
+ in(ADD, rPSTACK, rTMP, rPSTACK);
+ } else
+ in(ADDI, rPSTACK, sp->arg.si, rPSTACK);
+ if (sp->src1_reg_flags & REG_FLAGS_FLOAT) {
+ in(STFI, O6, SL(64, 128), fFIRST(fp));
+ in(LDUWI, O6, SL(64, 128), O0);
+ in(JMPLI, I7, 8, G0);
+ in(RESTORE, O0, G0, O0);
+ POP_FPR(fp);
+ } else {
+ in(JMPLI, I7, 8, G0);
+ in(RESTORE, rFIRST(fp), G0, O0);
+ POP_GPR(fp);
+ }
+ }
+ assert(fp->gpr_pos == L0);
+ assert(fp->fpr_pos == F0);
+ break;
+ case OP_JUMP:
+ if (fp->cached_const) {
+ EMIT_FALSE_CONST(fp);
+ emit_jump(fp, BA, fp->cached_const->arg.i);
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ in(LDLI, rVMDATA, VM_Data_Offset(iPointers), rTMP);
+ in(SLLI, rFIRST(fp), 2, rFIRST(fp));
+ in(LDL, rTMP, rFIRST(fp), rTMP);
+ in(JMPL, rTMP, G0, G0);
+ in(NOP);
+ }
+ POP_GPR(fp);
+ break;
+ case OP_CALL:
+ if (fp->cached_const) {
+ EMIT_FALSE_CONST(fp);
+ if (fp->cached_const->arg.si >= 0) {
+ emit_jump(fp, CALL, fp->cached_const->arg.i);
+ } else {
+ in(LDLI, rVMDATA, VM_Data_Offset(CallThunk), rTMP);
+ in(LDLI, rVMDATA, VM_Data_Offset(AsmCall), O3);
+ in(ORI, G0, fp->cached_const->arg.si, O0);
+ in(JMPL, rTMP, G0, O7);
+ in(OR, G0, rPSTACK, O1);
+ }
+ in(OR, G0, O0, rFIRST(fp));
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ in(SUBCCI, rFIRST(fp), 0, G0);
+ in(BL, +4*7);
+ in(NOP);
+
+ /* normal call */
+ in(LDLI, rVMDATA, VM_Data_Offset(iPointers), O5);
+ in(SLLI, rFIRST(fp), 2, rFIRST(fp));
+ in(LDL, O5, rFIRST(fp), rTMP);
+ in(BA, +4*4);
+ in(NOP);
+
+ /* syscall */
+ in(LDLI, rVMDATA, VM_Data_Offset(CallThunk), rTMP);
+ in(LDLI, rVMDATA, VM_Data_Offset(AsmCall), O3);
+
+ in(OR, G0, rFIRST(fp), O0);
+ in(JMPL, rTMP, G0, O7);
+ in(OR, G0, rPSTACK, O1);
+
+ /* return value */
+ in(OR, G0, O0, rFIRST(fp));
+ }
+ break;
+ case OP_BLOCK_COPY:
+ MAYBE_EMIT_CONST(fp);
+ in(LDLI, rVMDATA, VM_Data_Offset(CallThunk), rTMP);
+ in(LDLI, rVMDATA, VM_Data_Offset(BlockCopy), O3);
+ in(OR, G0, rSECOND(fp), O0);
+ in(OR, G0, rFIRST(fp), O1);
+ if ((sp->arg.i & ~0x3ff) == 0) {
+ in(ORI, G0, sp->arg.i & 0x3ff, O2);
+ } else if ((sp->arg.i & 0x3ff) == 0) {
+ in(SETHI, sp->arg.i >> 10, O2);
+ } else {
+ in(SETHI, sp->arg.i >> 10, O2);
+ in(ORI, O2, sp->arg.i & 0x3ff, O2);
+ }
+ in(JMPL, rTMP, G0, O7);
+ in(NOP);
+ POP_GPR(fp);
+ POP_GPR(fp);
+ break;
+
+ case OP_PUSH:
+ MAYBE_EMIT_CONST(fp);
+ if (sp->dst_reg_flags & REG_FLAGS_FLOAT)
+ PUSH_FPR(fp);
+ else
+ PUSH_GPR(fp);
+ fp->force_emit = 1;
+ break;
+ case OP_POP:
+ MAYBE_EMIT_CONST(fp);
+ if (sp->src1_reg_flags & REG_FLAGS_FLOAT)
+ POP_FPR(fp);
+ else
+ POP_GPR(fp);
+ fp->force_emit = 1;
+ break;
+ case OP_ARG:
+ MAYBE_EMIT_CONST(fp);
+ in(ADDI, rPSTACK, sp->arg.b, rTMP);
+ if (sp->src1_reg_flags & REG_FLAGS_FLOAT) {
+ in(STF, rDATABASE, rTMP, fFIRST(fp));
+ POP_FPR(fp);
+ } else {
+ in(STW, rDATABASE, rTMP, rFIRST(fp));
+ POP_GPR(fp);
+ }
+ break;
+ case OP_IGNORE:
+ MAYBE_EMIT_CONST(fp);
+ in(NOP);
+ break;
+ case OP_BREAK:
+ MAYBE_EMIT_CONST(fp);
+ in(TA, 0x5);
+ break;
+ case OP_LOCAL:
+ MAYBE_EMIT_CONST(fp);
+ PUSH_GPR(fp);
+ if (!SIMM13_P(sp->arg.i)) {
+ in(SETHI, sp->arg.i >> 10, rTMP);
+ in(ORI, rTMP, sp->arg.i & 0x3ff, rTMP);
+ in(ADD, rPSTACK, rTMP, rFIRST(fp));
+ } else
+ in(ADDI, rPSTACK, sp->arg.i, rFIRST(fp));
+ break;
+ case OP_CONST:
+ MAYBE_EMIT_CONST(fp);
+ break;
+ case OP_LOAD4:
+ MAYBE_EMIT_CONST(fp);
+ in(AND, rFIRST(fp), rDATAMASK, rFIRST(fp));
+ if (sp->dst_reg_flags & REG_FLAGS_FLOAT) {
+ PUSH_FPR(fp);
+ in(LDF, rFIRST(fp), rDATABASE, fFIRST(fp));
+ POP_GPR(fp);
+ } else {
+ in(LDUW, rFIRST(fp), rDATABASE, rFIRST(fp));
+ }
+ break;
+ case OP_LOAD2:
+ MAYBE_EMIT_CONST(fp);
+ in(AND, rFIRST(fp), rDATAMASK, rFIRST(fp));
+ in(LDUH, rFIRST(fp), rDATABASE, rFIRST(fp));
+ break;
+ case OP_LOAD1:
+ MAYBE_EMIT_CONST(fp);
+ in(AND, rFIRST(fp), rDATAMASK, rFIRST(fp));
+ in(LDUB, rFIRST(fp), rDATABASE, rFIRST(fp));
+ break;
+ case OP_STORE4:
+ MAYBE_EMIT_CONST(fp);
+ if (sp->src1_reg_flags & REG_FLAGS_FLOAT) {
+ in(AND, rFIRST(fp), rDATAMASK, rFIRST(fp));
+ in(STF, rFIRST(fp), rDATABASE, fFIRST(fp));
+ POP_FPR(fp);
+ } else {
+ in(AND, rSECOND(fp), rDATAMASK, rSECOND(fp));
+ in(STW, rSECOND(fp), rDATABASE, rFIRST(fp));
+ POP_GPR(fp);
+ }
+ POP_GPR(fp);
+ break;
+ case OP_STORE2:
+ MAYBE_EMIT_CONST(fp);
+ in(AND, rSECOND(fp), rDATAMASK, rSECOND(fp));
+ in(STH, rSECOND(fp), rDATABASE, rFIRST(fp));
+ POP_GPR(fp);
+ POP_GPR(fp);
+ break;
+ case OP_STORE1:
+ MAYBE_EMIT_CONST(fp);
+ in(AND, rSECOND(fp), rDATAMASK, rSECOND(fp));
+ in(STB, rSECOND(fp), rDATABASE, rFIRST(fp));
+ POP_GPR(fp);
+ POP_GPR(fp);
+ break;
+ case OP_EQ:
+ case OP_NE:
+ case OP_LTI:
+ case OP_GEI:
+ case OP_GTI:
+ case OP_LEI:
+ case OP_LTU:
+ case OP_GEU:
+ case OP_GTU:
+ case OP_LEU: {
+ enum sparc_iname iname = BA;
+
+ if (fp->cached_const && SIMM13_P(fp->cached_const->arg.si)) {
+ EMIT_FALSE_CONST(fp);
+ in(SUBCCI, rSECOND(fp), fp->cached_const->arg.si, G0);
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ in(SUBCC, rSECOND(fp), rFIRST(fp), G0);
+ }
+ switch(sp->op) {
+ case OP_EQ: iname = BE; break;
+ case OP_NE: iname = BNE; break;
+ case OP_LTI: iname = BL; break;
+ case OP_GEI: iname = BGE; break;
+ case OP_GTI: iname = BG; break;
+ case OP_LEI: iname = BLE; break;
+ case OP_LTU: iname = BCS; break;
+ case OP_GEU: iname = BCC; break;
+ case OP_GTU: iname = BGU; break;
+ case OP_LEU: iname = BLEU; break;
+ }
+ emit_jump(fp, iname, sp->arg.i);
+ POP_GPR(fp);
+ POP_GPR(fp);
+ break;
+ }
+
+ case OP_SEX8:
+ MAYBE_EMIT_CONST(fp);
+ in(SLLI, rFIRST(fp), 24, rFIRST(fp));
+ in(SRAI, rFIRST(fp), 24, rFIRST(fp));
+ break;
+ case OP_SEX16:
+ MAYBE_EMIT_CONST(fp);
+ in(SLLI, rFIRST(fp), 16, rFIRST(fp));
+ in(SRAI, rFIRST(fp), 16, rFIRST(fp));
+ break;
+ case OP_NEGI:
+ MAYBE_EMIT_CONST(fp);
+ in(SUB, G0, rFIRST(fp), rFIRST(fp));
+ break;
+ case OP_ADD:
+ if (fp->cached_const && SIMM13_P(fp->cached_const->arg.si)) {
+ EMIT_FALSE_CONST(fp);
+ in(ADDI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ in(ADD, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ }
+ POP_GPR(fp);
+ break;
+ case OP_SUB:
+ if (fp->cached_const && SIMM13_P(fp->cached_const->arg.si)) {
+ EMIT_FALSE_CONST(fp);
+ in(SUBI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ in(SUB, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ }
+ POP_GPR(fp);
+ break;
+ case OP_DIVI:
+ MAYBE_EMIT_CONST(fp);
+ in(SRAI, rSECOND(fp), 31, rTMP);
+ in(WRI, rTMP, 0, Y_REG);
+ in(SDIV, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_DIVU:
+ MAYBE_EMIT_CONST(fp);
+ in(WRI, G0, 0, Y_REG);
+ in(UDIV, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_MODI:
+ MAYBE_EMIT_CONST(fp);
+ in(SRAI, rSECOND(fp), 31, rTMP);
+ in(WRI, rTMP, 0, Y_REG);
+ in(SDIV, rSECOND(fp), rFIRST(fp), rTMP);
+ in(SMUL, rTMP, rFIRST(fp), rTMP);
+ in(SUB, rSECOND(fp), rTMP, rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_MODU:
+ MAYBE_EMIT_CONST(fp);
+ in(WRI, G0, 0, Y_REG);
+ in(UDIV, rSECOND(fp), rFIRST(fp), rTMP);
+ in(SMUL, rTMP, rFIRST(fp), rTMP);
+ in(SUB, rSECOND(fp), rTMP, rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_MULI:
+ MAYBE_EMIT_CONST(fp);
+ in(SMUL, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_MULU:
+ MAYBE_EMIT_CONST(fp);
+ in(UMUL, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_BAND:
+ MAYBE_EMIT_CONST(fp);
+ in(AND, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_BOR:
+ MAYBE_EMIT_CONST(fp);
+ in(OR, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_BXOR:
+ MAYBE_EMIT_CONST(fp);
+ in(XOR, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ POP_GPR(fp);
+ break;
+ case OP_BCOM:
+ MAYBE_EMIT_CONST(fp);
+ in(XNOR, rFIRST(fp), G0, rFIRST(fp));
+ break;
+ case OP_LSH:
+ if (fp->cached_const) {
+ EMIT_FALSE_CONST(fp);
+ in(SLLI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ in(SLL, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ }
+ POP_GPR(fp);
+ break;
+ case OP_RSHI:
+ if (fp->cached_const) {
+ EMIT_FALSE_CONST(fp);
+ in(SRAI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ in(SRA, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ }
+ POP_GPR(fp);
+ break;
+ case OP_RSHU:
+ if (fp->cached_const) {
+ EMIT_FALSE_CONST(fp);
+ in(SRLI, rSECOND(fp), fp->cached_const->arg.si, rSECOND(fp));
+ } else {
+ MAYBE_EMIT_CONST(fp);
+ in(SRL, rSECOND(fp), rFIRST(fp), rSECOND(fp));
+ }
+ POP_GPR(fp);
+ break;
+
+ case OP_NEGF:
+ MAYBE_EMIT_CONST(fp);
+ in(FNEG, fFIRST(fp), fFIRST(fp));
+ break;
+ case OP_ADDF:
+ MAYBE_EMIT_CONST(fp);
+ in(FADD, fSECOND(fp), fFIRST(fp), fSECOND(fp));
+ POP_FPR(fp);
+ break;
+ case OP_SUBF:
+ MAYBE_EMIT_CONST(fp);
+ in(FSUB, fSECOND(fp), fFIRST(fp), fSECOND(fp));
+ POP_FPR(fp);
+ break;
+ case OP_DIVF:
+ MAYBE_EMIT_CONST(fp);
+ in(FDIV, fSECOND(fp), fFIRST(fp), fSECOND(fp));
+ POP_FPR(fp);
+ break;
+ case OP_MULF:
+ MAYBE_EMIT_CONST(fp);
+ in(FMUL, fSECOND(fp), fFIRST(fp), fSECOND(fp));
+ POP_FPR(fp);
+ break;
+
+ case OP_EQF:
+ case OP_NEF:
+ case OP_LTF:
+ case OP_GEF:
+ case OP_GTF:
+ case OP_LEF: {
+ enum sparc_iname iname = FBE;
+
+ MAYBE_EMIT_CONST(fp);
+ in(FCMP, fSECOND(fp), fFIRST(fp));
+ switch(sp->op) {
+ case OP_EQF: iname = FBE; break;
+ case OP_NEF: iname = FBNE; break;
+ case OP_LTF: iname = FBL; break;
+ case OP_GEF: iname = FBGE; break;
+ case OP_GTF: iname = FBG; break;
+ case OP_LEF: iname = FBLE; break;
+ }
+ emit_jump(fp, iname, sp->arg.i);
+ POP_FPR(fp);
+ POP_FPR(fp);
+ break;
+ }
+ case OP_CVIF:
+ MAYBE_EMIT_CONST(fp);
+ PUSH_FPR(fp);
+ in(STWI, O6, SL(64, 128), rFIRST(fp));
+ in(LDFI, O6, SL(64, 128), fFIRST(fp));
+ in(FITOS, fFIRST(fp), fFIRST(fp));
+ POP_GPR(fp);
+ break;
+ case OP_CVFI:
+ MAYBE_EMIT_CONST(fp);
+ PUSH_GPR(fp);
+ in(FSTOI, fFIRST(fp), fFIRST(fp));
+ in(STFI, O6, SL(64, 128), fFIRST(fp));
+ in(LDUWI, O6, SL(64, 128), rFIRST(fp));
+ POP_FPR(fp);
+ break;
+ }
+ if (sp->op != OP_CONST) {
+ fp->cached_const = NULL;
+ end_emit(fp);
+ } else {
+ fp->cached_const = sp;
+ if (sp->dst_reg_flags & REG_FLAGS_FLOAT) {
+ PUSH_FPR(fp);
+ } else {
+ PUSH_GPR(fp);
+ }
+ }
+ end_emit(fp);
+}
+
+static void free_source_insns(struct func_info * const fp)
+{
+ struct src_insn *sp = fp->first->next;
+
+ while (sp) {
+ struct src_insn *next = sp->next;
+ Z_Free(sp);
+ sp = next;
+ }
+}
+
+static void compile_function(struct func_info * const fp)
+{
+ struct src_insn *sp;
+
+ analyze_function(fp);
+
+ fp->gpr_pos = L0;
+ fp->fpr_pos = F0;
+ fp->insn_index = 0;
+
+ fp->stack_space = SL(64, 128);
+ fp->cached_const = NULL;
+
+ sp = fp->first;
+ while ((sp = sp->next) != NULL)
+ compile_one_insn(fp, sp);
+
+ free_source_insns(fp);
+}
+
+/* We have two thunks for sparc. The first is for the entry into
+ * the VM, where setup the fixed global registers. The second is
+ * for calling out to C code from the VM, where we need to preserve
+ * those fixed globals across the call.
+ */
+static void emit_vm_thunk(struct func_info * const fp)
+{
+ /* int vm_thunk(void *vmdata, int programstack, void *database, int datamask) */
+ start_emit(fp, THUNK_ICOUNT);
+
+ in(OR, G0, O0, rVMDATA);
+ in(OR, G0, O1, rPSTACK);
+ in(OR, G0, O2, rDATABASE);
+ in(BA, +4*17);
+ in(OR, G0, O3, rDATAMASK);
+
+ /* int call_thunk(int arg0, int arg1, int arg2, int (*func)(int int int)) */
+#define CALL_THUNK_INSN_OFFSET 5
+ in(SAVEI, O6, -SL(64, 128), O6);
+
+ in(OR, G0, rVMDATA, L0);
+ in(OR, G0, rPSTACK, L1);
+ in(OR, G0, rDATABASE, L2);
+ in(OR, G0, rDATAMASK, L3);
+
+ in(OR, G0, I0, O0);
+ in(OR, G0, I1, O1);
+ in(JMPL, I3, G0, O7);
+ in(OR, G0, I2, O2);
+
+ in(OR, G0, L0, rVMDATA);
+ in(OR, G0, L1, rPSTACK);
+ in(OR, G0, L2, rDATABASE);
+ in(OR, G0, L3, rDATAMASK);
+
+ in(JMPLI, I7, 8, G0);
+ in(RESTORE, O0, G0, O0);
+
+ end_emit(fp);
+}
+
+static void sparc_compute_code(vm_t *vm, struct func_info * const fp)
+{
+ struct dst_insn *dp = fp->dst_first;
+ unsigned int *code_now, *code_begin;
+ unsigned char *data_and_code;
+ unsigned int code_length;
+ int code_insns = 0, off;
+ struct data_hunk *dhp;
+ struct jump_insn *jp;
+ vm_data_t *data;
+
+ while (dp) {
+ code_insns += dp->length;
+ dp = dp->next;
+ }
+
+ code_length = (sizeof(vm_data_t) +
+ (fp->data_num * sizeof(unsigned int)) +
+ (code_insns * sizeof(unsigned int)));
+
+ data_and_code = mmap(NULL, code_length, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+ if (!data_and_code)
+ DIE("Not enough memory");
+
+ code_now = code_begin = (unsigned int *)
+ (data_and_code + VM_Data_Offset(data[fp->data_num]));
+
+ dp = fp->dst_first;
+ while (dp) {
+ int i_count = dp->i_count;
+
+ if (i_count != THUNK_ICOUNT) {
+ if (!fp->dst_by_i_count[i_count])
+ fp->dst_by_i_count[i_count] = (void *) code_now;
+ }
+ if (!dp->jump) {
+ memcpy(code_now, &dp->code[0], dp->length * sizeof(unsigned int));
+ code_now += dp->length;
+ } else {
+ int i;
+
+ dp->jump->parent = (void *) code_now;
+
+ for (i = 0; i < dp->length; i++)
+ code_now[i] = SPARC_NOP;
+ code_now += dp->length;
+ }
+
+ dp = dp->next;
+ }
+
+ jp = fp->jump_first;
+ while (jp) {
+ unsigned int *from = (void *) jp->parent;
+ unsigned int *to = (void *) fp->dst_by_i_count[jp->jump_dest_insn];
+ signed int disp = (to - from);
+
+ *from = IN(jp->jump_iname, disp << 2);
+
+ jp = jp->next;
+ }
+
+ vm->codeBase = data_and_code;
+ vm->codeLength = code_length;
+
+ data = (vm_data_t *) data_and_code;
+ data->CallThunk = code_begin + CALL_THUNK_INSN_OFFSET;
+ data->AsmCall = asmcall;
+ data->BlockCopy = blockcopy;
+ data->iPointers = (unsigned int *) vm->instructionPointers;
+ data->dataLength = VM_Data_Offset(data[fp->data_num]);
+ data->codeLength = (code_now - code_begin) * sizeof(unsigned int);
+
+#if 0
+ {
+ unsigned int *insn = code_begin;
+ int i;
+
+ Com_Printf("INSN DUMP\n");
+ for (i = 0; i < data->codeLength / 4; i+= 8) {
+ Com_Printf("\t.word\t0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
+ insn[i + 0], insn[i + 1],
+ insn[i + 2], insn[i + 3],
+ insn[i + 4], insn[i + 5],
+ insn[i + 6], insn[i + 7]);
+ }
+ }
+#endif
+
+ dhp = fp->data_first;
+ off = 0;
+ while (dhp) {
+ struct data_hunk *next = dhp->next;
+ int i;
+
+ for (i = 0; i < dhp->count; i++)
+ data->data[off + i] = dhp->data[i];
+
+ off += dhp->count;
+
+ Z_Free(dhp);
+
+ dhp = next;
+ }
+ fp->data_first = NULL;
+ fp->data_num = 0;
+
+ dp = fp->dst_first;
+ while (dp) {
+ struct dst_insn *next = dp->next;
+ if (dp->jump)
+ Z_Free(dp->jump);
+ Z_Free(dp);
+ dp = next;
+ }
+ fp->dst_first = fp->dst_last = NULL;
+}
+
+void VM_Compile(vm_t *vm, vmHeader_t *header)
+{
+ struct func_info fi;
+ unsigned char *code;
+ int i_count, pc, i;
+
+ memset(&fi, 0, sizeof(fi));
+
+ fi.first = Z_Malloc(sizeof(struct src_insn));
+ fi.first->next = NULL;
+
+#ifdef __arch64__
+ Z_Free(vm->instructionPointers);
+ vm->instructionPointers = Z_Malloc(header->instructionCount *
+ sizeof(void *));
+#endif
+
+ fi.dst_by_i_count = (struct dst_insn **) vm->instructionPointers;
+ memset(fi.dst_by_i_count, 0, header->instructionCount * sizeof(void *));
+
+ vm->compiled = qfalse;
+
+ emit_vm_thunk(&fi);
+
+ code = (unsigned char *) header + header->codeOffset;
+ pc = 0;
+
+ for (i_count = 0; i_count < header->instructionCount; i_count++) {
+ unsigned char opi, op = code[pc++];
+ struct src_insn *sp;
+
+ if (op == OP_CALL || op == OP_BLOCK_COPY)
+ fi.has_call = 1;
+ opi = vm_opInfo[op];
+ if (op == OP_CVIF || op == OP_CVFI ||
+ (op == OP_LEAVE && (opi & opArgF)))
+ fi.need_float_tmp = 1;
+
+ if (op == OP_ENTER) {
+ if (fi.first->next)
+ compile_function(&fi);
+ fi.first->next = NULL;
+ fi.last = fi.first;
+ fi.has_call = fi.need_float_tmp = 0;
+ }
+
+ sp = Z_Malloc(sizeof(*sp));
+ sp->op = op;
+ sp->i_count = i_count;
+ sp->arg.i = 0;
+ sp->next = NULL;
+
+ if (vm_opInfo[op] & opImm4) {
+ union {
+ unsigned char b[4];
+ unsigned int i;
+ } c = { { code[ pc + 3 ], code[ pc + 2 ],
+ code[ pc + 1 ], code[ pc + 0 ] }, };
+
+ sp->arg.i = c.i;
+ pc += 4;
+ } else if (vm_opInfo[op] & opImm1) {
+ sp->arg.b = code[pc++];
+ }
+
+ fi.last->next = sp;
+ fi.last = sp;
+ }
+ compile_function(&fi);
+
+ Z_Free(fi.first);
+
+ memset(fi.dst_by_i_count, 0, header->instructionCount * sizeof(void *));
+ sparc_compute_code(vm, &fi);
+
+ for (i = 0; i < header->instructionCount; i++) {
+ if (!fi.dst_by_i_count[i]) {
+ Com_Printf(S_COLOR_RED "Pointer %d not initialized !\n", i);
+ DIE("sparc JIT bug");
+ }
+ }
+
+ if (mprotect(vm->codeBase, vm->codeLength, PROT_READ|PROT_EXEC)) {
+ VM_Destroy_Compiled(vm);
+ DIE("mprotect failed");
+ }
+
+ vm->destroy = VM_Destroy_Compiled;
+ vm->compiled = qtrue;
+}
+
+int VM_CallCompiled(vm_t *vm, int *args)
+{
+ vm_data_t *vm_dataAndCode = (void *) vm->codeBase;
+ int programStack = vm->programStack;
+ int stackOnEntry = programStack;
+ byte *image = vm->dataBase;
+ int *argPointer;
+ int retVal;
+
+ currentVM = vm;
+
+ vm->currentlyInterpreting = qtrue;
+
+ programStack -= 48;
+ argPointer = (int *)&image[ programStack + 8 ];
+ memcpy( argPointer, args, 4 * 9 );
+ argPointer[-1] = 0;
+ argPointer[-2] = -1;
+
+ /* call generated code */
+ {
+ int (*entry)(void *, int, void *, int);
+ entry = (void *)(vm->codeBase + vm_dataAndCode->dataLength);
+ retVal = entry(vm->codeBase, programStack, vm->dataBase, vm->dataMask);
+ }
+
+ vm->programStack = stackOnEntry;
+ vm->currentlyInterpreting = qfalse;
+
+ return retVal;
+}
diff --git a/code/qcommon/vm_sparc.h b/code/qcommon/vm_sparc.h
new file mode 100644
index 0000000..dbed627
--- /dev/null
+++ b/code/qcommon/vm_sparc.h
@@ -0,0 +1,78 @@
+#ifndef VM_SPARC_H
+#define VM_SPARC_H
+
+/* integer regs */
+#define G0 0
+#define G1 1
+#define G2 2
+#define G3 3
+#define G4 4
+#define G5 5
+#define G6 6
+#define G7 7
+#define O0 8
+#define O1 9
+#define O2 10
+#define O3 11
+#define O4 12
+#define O5 13
+#define O6 14
+#define O7 15
+#define L0 16
+#define L1 17
+#define L2 18
+#define L3 19
+#define L4 20
+#define L5 21
+#define L6 22
+#define L7 23
+#define I0 24
+#define I1 25
+#define I2 26
+#define I3 27
+#define I4 28
+#define I5 29
+#define I6 30
+#define I7 31
+
+/* float regs */
+#define F0 0
+#define F1 1
+#define F2 2
+#define F3 3
+#define F4 4
+#define F5 5
+#define F6 6
+#define F7 7
+#define F8 8
+#define F9 9
+#define F10 10
+#define F11 11
+#define F12 12
+#define F13 13
+#define F14 14
+#define F15 15
+#define F16 16
+#define F17 17
+#define F18 18
+#define F19 19
+#define F20 20
+#define F21 21
+#define F22 22
+#define F23 23
+#define F24 24
+#define F25 25
+#define F26 26
+#define F27 27
+#define F28 28
+#define F29 29
+#define F30 30
+#define F31 31
+
+/* state registers */
+#define Y_REG 0
+#define CCR_REG 2
+#define ASI_REG 3
+#define FPRS_REG 6
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 21:15:43 +0000