Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

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

Browse source
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
Download patch file Download diff file Expand all files Collapse all files

28
src/386.c
View file

@ -66,11 +66,11 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
eal_r = eal_w = NULL;
easeg = ea_seg->base;
ea_rseg = ea_seg->seg;
if (rm == 4)
if (cpu_rm == 4)
{
uint8_t sib = rmdat >> 8;
switch (mod)
switch (cpu_mod)
{
case 0:
eaaddr = cpu_state.regs[sib & 7].l;
@ -87,7 +87,7 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
break;
}
/*SIB byte present*/
if ((sib & 7) == 5 && !mod)
if ((sib & 7) == 5 && !cpu_mod)
eaaddr = getlong();
else if ((sib & 6) == 4 && !ssegs)
{
@ -100,16 +100,16 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
}
else
{
eaaddr = cpu_state.regs[rm].l;
if (mod)
eaaddr = cpu_state.regs[cpu_rm].l;
if (cpu_mod)
{
if (rm == 5 && !ssegs)
if (cpu_rm == 5 && !ssegs)
{
easeg = ss;
ea_rseg = SS;
ea_seg = &_ss;
}
if (mod == 1)
if (cpu_mod == 1)
{
eaaddr += ((uint32_t)(int8_t)(rmdat >> 8));
cpu_state.pc++;
@ -119,7 +119,7 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
eaaddr += getlong();
}
}
else if (rm == 5)
else if (cpu_rm == 5)
{
eaaddr = getlong();
}
@ -139,13 +139,13 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
eal_r = eal_w = NULL;
easeg = ea_seg->base;
ea_rseg = ea_seg->seg;
if (!mod && rm == 6)
if (!cpu_mod && cpu_rm == 6)
{
eaaddr = getword();
}
else
{
switch (mod)
switch (cpu_mod)
{
case 0:
eaaddr = 0;
@ -157,8 +157,8 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
eaaddr = getword();
break;
}
eaaddr += (*mod1add[0][rm]) + (*mod1add[1][rm]);
if (mod1seg[rm] == &ss && !ssegs)
eaaddr += (*mod1add[0][cpu_rm]) + (*mod1add[1][cpu_rm]);
if (mod1seg[cpu_rm] == &ss && !ssegs)
{
easeg = ss;
ea_rseg = SS;
@ -176,8 +176,8 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
}
}
#define fetch_ea_16(rmdat) cpu_state.pc++; mod=(rmdat >> 6) & 3; reg=(rmdat >> 3) & 7; rm = rmdat & 7; if (mod != 3) { fetch_ea_16_long(rmdat); if (abrt) return 0; }
#define fetch_ea_32(rmdat) cpu_state.pc++; mod=(rmdat >> 6) & 3; reg=(rmdat >> 3) & 7; rm = rmdat & 7; if (mod != 3) { fetch_ea_32_long(rmdat); } if (abrt) return 0
#define fetch_ea_16(rmdat) cpu_state.pc++; cpu_mod=(rmdat >> 6) & 3; cpu_reg=(rmdat >> 3) & 7; cpu_rm = rmdat & 7; if (cpu_mod != 3) { fetch_ea_16_long(rmdat); if (abrt) return 0; }
#define fetch_ea_32(rmdat) cpu_state.pc++; cpu_mod=(rmdat >> 6) & 3; cpu_reg=(rmdat >> 3) & 7; cpu_rm = rmdat & 7; if (cpu_mod != 3) { fetch_ea_32_long(rmdat); } if (abrt) return 0
#include "x86_flags.h"