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

Added recompiled versions of FIST and FISTP.

Browse source
This commit is contained in:
SarahW 2018-10-25 20:54:33 +01:00
commit 87191dde55
29 changed files with 829 additions and 57 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/x87_ops_misc.h
View file

@ -32,7 +32,7 @@ static int opFINIT(uint32_t fetchdat)
FP_ENTER();
cpu_state.pc++;
cpu_state.npxc = 0x37F;
cpu_state.new_npxc = (cpu_state.old_npxc & ~0xc00);
codegen_set_rounding_mode(X87_ROUNDING_NEAREST);
cpu_state.npxs = 0;
*(uint64_t *)cpu_state.tag = 0;
cpu_state.TOP = 0;
@ -86,7 +86,7 @@ static int FSTOR()
case 0x000: /*16-bit real mode*/
case 0x001: /*16-bit protected mode*/
cpu_state.npxc = readmemw(easeg, cpu_state.eaaddr);
cpu_state.new_npxc = (cpu_state.old_npxc & ~0xc00) | (cpu_state.npxc & 0xc00);
codegen_set_rounding_mode((cpu_state.npxc >> 10) & 3);
cpu_state.npxs = readmemw(easeg, cpu_state.eaaddr+2);
x87_settag(readmemw(easeg, cpu_state.eaaddr+4));
cpu_state.TOP = (cpu_state.npxs >> 11) & 7;
@ -95,7 +95,7 @@ static int FSTOR()
case 0x100: /*32-bit real mode*/
case 0x101: /*32-bit protected mode*/
cpu_state.npxc = readmemw(easeg, cpu_state.eaaddr);
cpu_state.new_npxc = (cpu_state.old_npxc & ~0xc00) | (cpu_state.npxc & 0xc00);
codegen_set_rounding_mode((cpu_state.npxc >> 10) & 3);
cpu_state.npxs = readmemw(easeg, cpu_state.eaaddr+4);
x87_settag(readmemw(easeg, cpu_state.eaaddr+8));
cpu_state.TOP = (cpu_state.npxs >> 11) & 7;
@ -276,7 +276,7 @@ static int FSAVE()
}
cpu_state.npxc = 0x37F;
cpu_state.new_npxc = (cpu_state.old_npxc & ~0xc00);
codegen_set_rounding_mode(X87_ROUNDING_NEAREST);
cpu_state.npxs = 0;
*(uint64_t *)cpu_state.tag = 0;
cpu_state.TOP = 0;
@ -682,7 +682,7 @@ static int FLDENV()
case 0x000: /*16-bit real mode*/
case 0x001: /*16-bit protected mode*/
cpu_state.npxc = readmemw(easeg, cpu_state.eaaddr);
cpu_state.new_npxc = (cpu_state.old_npxc & ~0xc00) | (cpu_state.npxc & 0xc00);
codegen_set_rounding_mode((cpu_state.npxc >> 10) & 3);
cpu_state.npxs = readmemw(easeg, cpu_state.eaaddr+2);
x87_settag(readmemw(easeg, cpu_state.eaaddr+4));
cpu_state.TOP = (cpu_state.npxs >> 11) & 7;
@ -690,7 +690,7 @@ static int FLDENV()
case 0x100: /*32-bit real mode*/
case 0x101: /*32-bit protected mode*/
cpu_state.npxc = readmemw(easeg, cpu_state.eaaddr);
cpu_state.new_npxc = (cpu_state.old_npxc & ~0xc00) | (cpu_state.npxc & 0xc00);
codegen_set_rounding_mode((cpu_state.npxc >> 10) & 3);
cpu_state.npxs = readmemw(easeg, cpu_state.eaaddr+4);
x87_settag(readmemw(easeg, cpu_state.eaaddr+8));
cpu_state.TOP = (cpu_state.npxs >> 11) & 7;
@ -727,7 +727,7 @@ static int opFLDCW_a16(uint32_t fetchdat)
tempw = geteaw();
if (cpu_state.abrt) return 1;
cpu_state.npxc = tempw;
cpu_state.new_npxc = (cpu_state.old_npxc & ~0xc00) | (cpu_state.npxc & 0xc00);
codegen_set_rounding_mode((cpu_state.npxc >> 10) & 3);
CLOCK_CYCLES(4);
return 0;
}
@ -741,7 +741,7 @@ static int opFLDCW_a32(uint32_t fetchdat)
tempw = geteaw();
if (cpu_state.abrt) return 1;
cpu_state.npxc = tempw;
cpu_state.new_npxc = (cpu_state.old_npxc & ~0xc00) | (cpu_state.npxc & 0xc00);
codegen_set_rounding_mode((cpu_state.npxc >> 10) & 3);
CLOCK_CYCLES(4);
return 0;
}