claunia/86Box
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge pull request #5258 from Cacodemon345/fpu-interpreter-fix

Browse Source 
x87: Fix Final Reality discolored screen for interpreter
This commit is contained in:
Miran Grča
2025-02-26 20:05:08 +01:00
committed by GitHub
parent 48e35e95ec 6d3816df64
commit 9ddb0c9db7
1 changed files with 41 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
src/cpu/x87_ops.h
View File

@@ -113,12 +113,33 @@ typedef union {
static __inline void
x87_push(double i)
{
#ifdef X87_INLINE_ASM
unsigned char buffer[10];
#else
x87_conv_t test;
#endif
#ifdef USE_NEW_DYNAREC
cpu_state.TOP--;
#else
cpu_state.TOP = (cpu_state.TOP - 1) & 7;
#endif
cpu_state.ST[cpu_state.TOP & 7] = i;
#ifdef X87_INLINE_ASM
__asm volatile(""
:
:
: "memory");
__asm volatile("fldl %1\n"
"fstpt %0\n" : "=m"(buffer) : "m"(i));
cpu_state.MM[cpu_state.TOP & 7].q = (*(uint64_t*)buffer);
#else
x87_to80(i, &test);
cpu_state.MM[cpu_state.TOP & 7].q = test.eind.ll;
#endif
#ifdef USE_NEW_DYNAREC
cpu_state.tag[cpu_state.TOP & 7] = TAG_VALID;
#else
@@ -129,6 +150,11 @@ x87_push(double i)
static __inline void
x87_push_u64(uint64_t i)
{
#ifdef X87_INLINE_ASM
unsigned char buffer[10];
#else
x87_conv_t test;
#endif
union {
double d;
uint64_t ll;
@@ -142,6 +168,21 @@ x87_push_u64(uint64_t i)
cpu_state.TOP = (cpu_state.TOP - 1) & 7;
#endif
cpu_state.ST[cpu_state.TOP & 7] = td.d;
#ifdef X87_INLINE_ASM
__asm volatile(""
:
:
: "memory");
__asm volatile("fldl %1\n"
"fstpt %0\n" : "=m"(buffer) : "m"(td.d));
cpu_state.MM[cpu_state.TOP & 7].q = (*(uint64_t*)buffer);
#else
x87_to80(td.d, &test);
cpu_state.MM[cpu_state.TOP & 7].q = test.eind.ll;
#endif
#ifdef USE_NEW_DYNAREC
cpu_state.tag[cpu_state.TOP & 7] = TAG_VALID;
#else