diff options
| -rw-r--r-- | code/qcommon/vm_ppc_new.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/code/qcommon/vm_ppc_new.c b/code/qcommon/vm_ppc_new.c index bab80ce..f6fcc31 100644 --- a/code/qcommon/vm_ppc_new.c +++ b/code/qcommon/vm_ppc_new.c @@ -157,32 +157,38 @@ typedef enum { #define RG_EA r14 // The deepest value I saw in the Quake3 games was 9. -#define OP_STACK_MAX_DEPTH 12 +#define OP_STACK_MAX_DEPTH 16 -// These are all volatile and thus must be saved -// upon entry to the VM code. +// These are all volatile and thus must be saved upon entry to the VM code. +// NOTE: These are General Purpose Registers (GPR) numbers like the +// R_ definitions in the regNums_t enum above (31 is the max) static int opStackIntRegisters[OP_STACK_MAX_DEPTH] = { 16, 17, 18, 19, 20, 21, 22, 23, - 24, 25, 26, 27 + 24, 25, 26, 27, + 28, 29, 30, 31 }; static unsigned int *opStackLoadInstructionAddr[OP_STACK_MAX_DEPTH]; // We use different registers for the floating point // operand stack (these are volatile in the PPC ABI) +// NOTE: these are Floating Point Register (FPR) numbers, not +// General Purpose Register (GPR) numbers static int opStackFloatRegisters[OP_STACK_MAX_DEPTH] = { 0, 1, 2, 3, 4, 5, 6, 7, - 8, 9, 10, 11 + 8, 9, 10, 11, + 12, 13, 14, 15 }; static int opStackRegType[OP_STACK_MAX_DEPTH] = { 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0 }; |