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

Moved integer registers, PC and flags_* variables into new cpu_state structure. Reduces recompiled code size slightly, small speedup (1-3%).

Browse source
This commit is contained in:
SarahW 2016-04-20 21:39:41 +01:00
commit c81a91fd72
52 changed files with 1494 additions and 1408 deletions
Download patch file Download diff file Expand all files Collapse all files

30
src/x86_ops_ret.h
View file

@ -4,15 +4,15 @@
pmoderetf(0, stack_offset); \
return 1; \
} \
oxpc = pc; \
oxpc = cpu_state.pc; \
if (stack32) \
{ \
pc = readmemw(ss, ESP); \
cpu_state.pc = readmemw(ss, ESP); \
loadcs(readmemw(ss, ESP + 2)); \
} \
else \
{ \
pc = readmemw(ss, SP); \
cpu_state.pc = readmemw(ss, SP); \
loadcs(readmemw(ss, SP + 2)); \
} \
if (abrt) return 1; \
@ -26,15 +26,15 @@
pmoderetf(1, stack_offset); \
return 1; \
} \
oxpc = pc; \
oxpc = cpu_state.pc; \
if (stack32) \
{ \
pc = readmeml(ss, ESP); \
cpu_state.pc = readmeml(ss, ESP); \
loadcs(readmeml(ss, ESP + 4) & 0xffff); \
} \
else \
{ \
pc = readmeml(ss, SP); \
cpu_state.pc = readmeml(ss, SP); \
loadcs(readmeml(ss, SP + 4) & 0xffff); \
} \
if (abrt) return 1; \
@ -86,17 +86,17 @@ static int opIRET_286(uint32_t fetchdat)
else
{
uint16_t new_cs;
oxpc = pc;
oxpc = cpu_state.pc;
if (stack32)
{
pc = readmemw(ss, ESP);
cpu_state.pc = readmemw(ss, ESP);
new_cs = readmemw(ss, ESP + 2);
flags = (flags & 0x7000) | (readmemw(ss, ESP + 4) & 0xffd5) | 2;
ESP += 6;
}
else
{
pc = readmemw(ss, SP);
cpu_state.pc = readmemw(ss, SP);
new_cs = readmemw(ss, ((SP + 2) & 0xffff));
flags = (flags & 0x7000) | (readmemw(ss, ((SP + 4) & 0xffff)) & 0x0fd5) | 2;
SP += 6;
@ -126,17 +126,17 @@ static int opIRET(uint32_t fetchdat)
else
{
uint16_t new_cs;
oxpc = pc;
oxpc = cpu_state.pc;
if (stack32)
{
pc = readmemw(ss, ESP);
cpu_state.pc = readmemw(ss, ESP);
new_cs = readmemw(ss, ESP + 2);
flags = (readmemw(ss, ESP + 4) & 0xffd5) | 2;
ESP += 6;
}
else
{
pc = readmemw(ss, SP);
cpu_state.pc = readmemw(ss, SP);
new_cs = readmemw(ss, ((SP + 2) & 0xffff));
flags = (readmemw(ss, ((SP + 4) & 0xffff)) & 0xffd5) | 2;
SP += 6;
@ -166,10 +166,10 @@ static int opIRETD(uint32_t fetchdat)
else
{
uint16_t new_cs;
oxpc = pc;
oxpc = cpu_state.pc;
if (stack32)
{
pc = readmeml(ss, ESP);
cpu_state.pc = readmeml(ss, ESP);
new_cs = readmemw(ss, ESP + 4);
flags = (readmemw(ss, ESP + 8) & 0xffd5) | 2;
eflags = readmemw(ss, ESP + 10);
@ -177,7 +177,7 @@ static int opIRETD(uint32_t fetchdat)
}
else
{
pc = readmeml(ss, SP);
cpu_state.pc = readmeml(ss, SP);
new_cs = readmemw(ss, ((SP + 4) & 0xffff));
flags = (readmemw(ss,(SP + 8) & 0xffff) & 0xffd5) | 2;
eflags = readmemw(ss, (SP + 10) & 0xffff);