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FPU Support

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@86
This commit is contained in:
Sjoerd van der Berg 2002-07-28 16:31:54 +00:00
parent 79182b385d
commit 153d381f5d
3 changed files with 205 additions and 5 deletions
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16
src/fpu/fpu.cpp
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@ -16,10 +16,12 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "dosbox.h"
#ifdef C_FPU
#include <math.h>
#include <float.h>
#include "mem.h"
#include "dosbox.h"
#include "fpu.h"
typedef PhysPt EAPoint;
@ -36,13 +38,16 @@ typedef PhysPt EAPoint;
#define SaveMw(off,val) mem_writew(off,val)
#define SaveMd(off,val) mem_writed(off,val)
typedef double Real;
#include "fpu_types.h"
#include "fpu_instructions.h"
FPU_Flag_Info fpu_flags;
FPU_Regs fpu_regs;
FPU_Reg fpu_regs[8];
#define FPU_GetZF fpu_flags.sw.zf = FPU_get_ZF();
#include "fpu_core_16/instructions.h"
#define FPU_ParseCW(newcw) { \
fpu_flags.cw.ic = ((bool)((newcw&0x1000)>>12)?true:false); \
fpu_flags.cw.rc = (Bit8u)((newcw&0x0C00)>>10); \
@ -264,8 +269,9 @@ void FPU_ESC7_EA(Bitu rm,PhysPt addr) {
void FPU_ESC7_Normal(Bitu rm) {
}
void FPU_Init(void) {
fpu_flags.type = t_FUNKNOWN;
}
#endif