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

Reorganised FPU emulation.

Browse source
This commit is contained in:
TomW 2014-11-09 14:07:03 +00:00
commit 087f412d3f
12 changed files with 2670 additions and 1436 deletions
Download patch file Download diff file Expand all files Collapse all files

125
src/x86_ops_fpu.h
View file

@ -1,59 +1,74 @@
#define opESCAPE(num) \
static int opESCAPE_ ## num ##_a16(uint32_t fetchdat) \
{ \
flags_rebuild(); \
if (cr0 & 0xc) \
{ \
x86_int(7); \
return 1; \
} \
else \
{ \
fpucount++; \
fetch_ea_16(fetchdat); \
if (hasfpu) \
{ \
x87_pc_off = oldpc; \
x87_pc_seg = CS; \
x87_op_off = eaaddr; \
x87_op_seg = ea_rseg; \
x87_ ## num(fetchdat); \
} \
} \
return abrt; \
} \
static int opESCAPE_ ## num ## _a32(uint32_t fetchdat) \
{ \
flags_rebuild(); \
if (cr0 & 0xc) \
{ \
x86_int(7); \
return 1; \
} \
else \
{ \
fpucount++; \
fetch_ea_32(fetchdat); \
if (hasfpu) \
{ \
x87_pc_off = oldpc; \
x87_pc_seg = CS; \
x87_op_off = eaaddr; \
x87_op_seg = ea_rseg; \
x87_ ## num(fetchdat); \
} \
} \
return abrt; \
}
static int opESCAPE_d8_a16(uint32_t fetchdat)
{
return x86_opcodes_d8_a16[(fetchdat >> 3) & 0x1f](fetchdat);
}
static int opESCAPE_d8_a32(uint32_t fetchdat)
{
return x86_opcodes_d8_a32[(fetchdat >> 3) & 0x1f](fetchdat);
}
opESCAPE(d8);
opESCAPE(d9);
opESCAPE(da);
opESCAPE(db);
opESCAPE(dc);
opESCAPE(dd);
opESCAPE(de);
opESCAPE(df);
static int opESCAPE_d9_a16(uint32_t fetchdat)
{
return x86_opcodes_d9_a16[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_d9_a32(uint32_t fetchdat)
{
return x86_opcodes_d9_a32[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_da_a16(uint32_t fetchdat)
{
return x86_opcodes_da_a16[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_da_a32(uint32_t fetchdat)
{
return x86_opcodes_da_a32[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_db_a16(uint32_t fetchdat)
{
return x86_opcodes_db_a16[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_db_a32(uint32_t fetchdat)
{
return x86_opcodes_db_a32[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_dc_a16(uint32_t fetchdat)
{
return x86_opcodes_dc_a16[(fetchdat >> 3) & 0x1f](fetchdat);
}
static int opESCAPE_dc_a32(uint32_t fetchdat)
{
return x86_opcodes_dc_a32[(fetchdat >> 3) & 0x1f](fetchdat);
}
static int opESCAPE_dd_a16(uint32_t fetchdat)
{
return x86_opcodes_dd_a16[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_dd_a32(uint32_t fetchdat)
{
return x86_opcodes_dd_a32[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_de_a16(uint32_t fetchdat)
{
return x86_opcodes_de_a16[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_de_a32(uint32_t fetchdat)
{
return x86_opcodes_de_a32[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_df_a16(uint32_t fetchdat)
{
return x86_opcodes_df_a16[fetchdat & 0xff](fetchdat);
}
static int opESCAPE_df_a32(uint32_t fetchdat)
{
return x86_opcodes_df_a32[fetchdat & 0xff](fetchdat);
}
static int opWAIT(uint32_t fetchdat)
{