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Pack decoded ModR/M data into a single word - minor recompiler speedup.

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This commit is contained in:
SarahW 2016-08-14 16:29:54 +01:00
commit 535604b760
34 changed files with 1263 additions and 1270 deletions
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13
src/ibm.h
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@ -108,6 +108,15 @@ struct
uint32_t flags_op1, flags_op2;
uint32_t pc;
union
{
struct
{
int8_t rm, mod, reg;
} rm_mod_reg;
uint32_t rm_mod_reg_data;
} rm_data;
} cpu_state;
/*x86reg regs[8];*/
@ -238,6 +247,10 @@ int pitcount;
float pit_timer0_freq();
#define cpu_rm cpu_state.rm_data.rm_mod_reg.rm
#define cpu_mod cpu_state.rm_data.rm_mod_reg.mod
#define cpu_reg cpu_state.rm_data.rm_mod_reg.reg
/*DMA*/