80486DX2-66/86Box-fork
1
0
Fork 0
Code Issues Pull Requests Activity

cpu: force soft FPU on MSVC/x64

Browse Source
This commit is contained in:
David Hrdlička
2020-12-16 20:34:01 +01:00
parent 7e6df1f45c
commit 62647e45de
1 changed files with 10 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/cpu/x87_ops.h
View File

@@ -46,6 +46,12 @@ static int rounding_modes[4] = {FE_TONEAREST, FE_DOWNWARD, FE_UPWARD, FE_TOWARDZ
#define STATUS_ZERODIVIDE 4 #define STATUS_ZERODIVIDE 4
#if defined(_MSC_VER) && !defined(__clang__)
# define X87_INLINE_ASM defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined _M_IX86
#else
# define X87_INLINE_ASM defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined _M_IX86 || defined _M_X64 || defined __amd64__
#endif
#ifdef FPU_8087 #ifdef FPU_8087
#define x87_div(dst, src1, src2) do \ #define x87_div(dst, src1, src2) do \
{ \ { \
@@ -311,7 +317,7 @@ static __inline void x87_stmmx(MMX_REG r)
static __inline uint16_t x87_compare(double a, double b) static __inline uint16_t x87_compare(double a, double b)
{ {
#if defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined _M_IX86 || defined _M_X64 #if X87_INLINE_ASM
uint32_t result; uint32_t result;
double ea = a, eb = b; double ea = a, eb = b;
const uint64_t ia = 0x3fec1a6ff866a936ull; const uint64_t ia = 0x3fec1a6ff866a936ull;
@@ -325,7 +331,7 @@ static __inline uint16_t x87_compare(double a, double b)
((a == INFINITY) || (a == -INFINITY)) && ((b == INFINITY) || (b == -INFINITY))) ((a == INFINITY) || (a == -INFINITY)) && ((b == INFINITY) || (b == -INFINITY)))
eb = ea; eb = ea;
#ifndef _MSC_VER #if !defined(_MSC_VER) || defined(__clang__)
/* Memory barrier, to force GCC to write to the input parameters /* Memory barrier, to force GCC to write to the input parameters
* before the compare rather than after */ * before the compare rather than after */
__asm volatile ("" : : : "memory"); __asm volatile ("" : : : "memory");
@@ -373,10 +379,10 @@ static __inline uint16_t x87_compare(double a, double b)
static __inline uint16_t x87_ucompare(double a, double b) static __inline uint16_t x87_ucompare(double a, double b)
{ {
#if defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined _M_IX86 || defined _M_X64 || defined __amd64__ #if X87_INLINE_ASM
uint32_t result; uint32_t result;
#ifndef _MSC_VER #if !defined(_MSC_VER) || defined(__clang__)
/* Memory barrier, to force GCC to write to the input parameters /* Memory barrier, to force GCC to write to the input parameters
* before the compare rather than after */ * before the compare rather than after */
asm volatile ("" : : : "memory"); asm volatile ("" : : : "memory");