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

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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
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28
src/x86_ops_misc.h
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@ -50,7 +50,7 @@ static int opF6_a16(uint32_t fetchdat)
switch (rmdat & 0x38)
{
case 0x00: /*TEST b,#8*/
src = readmemb(cs, pc); pc++; if (abrt) return 1;
src = readmemb(cs, cpu_state.pc); cpu_state.pc++; if (abrt) return 1;
setznp8(src & dst);
if (is486) CLOCK_CYCLES((mod == 3) ? 1 : 2);
else CLOCK_CYCLES((mod == 3) ? 2 : 5);
@ -140,7 +140,7 @@ static int opF6_a32(uint32_t fetchdat)
switch (rmdat & 0x38)
{
case 0x00: /*TEST b,#8*/
src = readmemb(cs, pc); pc++; if (abrt) return 1;
src = readmemb(cs, cpu_state.pc); cpu_state.pc++; if (abrt) return 1;
setznp8(src & dst);
if (is486) CLOCK_CYCLES((mod == 3) ? 1 : 2);
else CLOCK_CYCLES((mod == 3) ? 2 : 5);
@ -530,7 +530,7 @@ static int opHLT(uint32_t fetchdat)
if (!((flags&I_FLAG) && pic_intpending))
{
CLOCK_CYCLES_ALWAYS(100);
pc--;
cpu_state.pc--;
}
else
CLOCK_CYCLES(5);
@ -543,9 +543,9 @@ static int opHLT(uint32_t fetchdat)
static int opLOCK(uint32_t fetchdat)
{
fetchdat = fastreadl(cs + pc);
fetchdat = fastreadl(cs + cpu_state.pc);
if (abrt) return 0;
pc++;
cpu_state.pc++;
CLOCK_CYCLES(4);
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
@ -562,7 +562,7 @@ static int opBOUND_w_a16(uint32_t fetchdat)
low = geteaw();
high = readmemw(easeg, eaaddr + 2); if (abrt) return 1;
if (((int16_t)regs[reg].w < low) || ((int16_t)regs[reg].w > high))
if (((int16_t)cpu_state.regs[reg].w < low) || ((int16_t)cpu_state.regs[reg].w > high))
{
x86_int(5);
return 1;
@ -580,7 +580,7 @@ static int opBOUND_w_a32(uint32_t fetchdat)
low = geteaw();
high = readmemw(easeg, eaaddr + 2); if (abrt) return 1;
if (((int16_t)regs[reg].w < low) || ((int16_t)regs[reg].w > high))
if (((int16_t)cpu_state.regs[reg].w < low) || ((int16_t)cpu_state.regs[reg].w > high))
{
x86_int(5);
return 1;
@ -599,7 +599,7 @@ static int opBOUND_l_a16(uint32_t fetchdat)
low = geteal();
high = readmeml(easeg, eaaddr + 4); if (abrt) return 1;
if (((int32_t)regs[reg].l < low) || ((int32_t)regs[reg].l > high))
if (((int32_t)cpu_state.regs[reg].l < low) || ((int32_t)cpu_state.regs[reg].l > high))
{
x86_int(5);
return 1;
@ -617,7 +617,7 @@ static int opBOUND_l_a32(uint32_t fetchdat)
low = geteal();
high = readmeml(easeg, eaaddr + 4); if (abrt) return 1;
if (((int32_t)regs[reg].l < low) || ((int32_t)regs[reg].l > high))
if (((int32_t)cpu_state.regs[reg].l < low) || ((int32_t)cpu_state.regs[reg].l > high))
{
x86_int(5);
return 1;
@ -670,7 +670,7 @@ static int opLOADALL(uint32_t fetchdat)
{
flags = (readmemw(0, 0x818) & 0xffd5) | 2;
flags_extract();
pc = readmemw(0, 0x81A);
cpu_state.pc = readmemw(0, 0x81A);
DS = readmemw(0, 0x81E);
SS = readmemw(0, 0x820);
CS = readmemw(0, 0x822);
@ -727,7 +727,7 @@ static int opLOADALL386(uint32_t fetchdat)
flags = readmemw(0, la_addr + 4);
eflags = readmemw(0, la_addr + 6);
flags_extract();
pc = readmeml(0, la_addr + 8);
cpu_state.pc = readmeml(0, la_addr + 8);
EDI = readmeml(0, la_addr + 0xC);
ESI = readmeml(0, la_addr + 0x10);
EBP = readmeml(0, la_addr + 0x14);
@ -772,7 +772,7 @@ static int opCPUID(uint32_t fetchdat)
CLOCK_CYCLES(9);
return 0;
}
pc = oldpc;
cpu_state.pc = oldpc;
x86illegal();
return 1;
}
@ -785,7 +785,7 @@ static int opRDMSR(uint32_t fetchdat)
CLOCK_CYCLES(9);
return 0;
}
pc = oldpc;
cpu_state.pc = oldpc;
x86illegal();
return 1;
}
@ -798,7 +798,7 @@ static int opWRMSR(uint32_t fetchdat)
CLOCK_CYCLES(9);
return 0;
}
pc = oldpc;
cpu_state.pc = oldpc;
x86illegal();
return 1;
}