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[FAST486]

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All of the FPU opcodes fetch another byte which is the function number.
This is done by the CPU and it occurs even if there is no FPU attached.


svn path=/branches/ntvdm/; revision=62344
This commit is contained in:
Aleksandar Andrejevic 2014-02-27 03:54:43 +00:00
parent e29c05a3d5
commit 935289b5bc
1 changed files with 72 additions and 0 deletions
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72
lib/fast486/fpu.c
View file

@ -35,8 +35,17 @@
FAST486_OPCODE_HANDLER(Fast486FpuOpcodeD8)
{
UCHAR Function;
FPU_CHECK();
/* Fetch the function number */
if (!Fast486FetchByte(State, &Function))
{
/* Exception occurred */
return FALSE;
}
#ifndef FAST486_NO_FPU
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
@ -50,8 +59,17 @@ FAST486_OPCODE_HANDLER(Fast486FpuOpcodeD8)
FAST486_OPCODE_HANDLER(Fast486FpuOpcodeD9)
{
UCHAR Function;
FPU_CHECK();
/* Fetch the function number */
if (!Fast486FetchByte(State, &Function))
{
/* Exception occurred */
return FALSE;
}
#ifndef FAST486_NO_FPU
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
@ -65,8 +83,17 @@ FAST486_OPCODE_HANDLER(Fast486FpuOpcodeD9)
FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDA)
{
UCHAR Function;
FPU_CHECK();
/* Fetch the function number */
if (!Fast486FetchByte(State, &Function))
{
/* Exception occurred */
return FALSE;
}
#ifndef FAST486_NO_FPU
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
@ -80,8 +107,17 @@ FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDA)
FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDB)
{
UCHAR Function;
FPU_CHECK();
/* Fetch the function number */
if (!Fast486FetchByte(State, &Function))
{
/* Exception occurred */
return FALSE;
}
#ifndef FAST486_NO_FPU
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
@ -95,8 +131,17 @@ FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDB)
FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDC)
{
UCHAR Function;
FPU_CHECK();
/* Fetch the function number */
if (!Fast486FetchByte(State, &Function))
{
/* Exception occurred */
return FALSE;
}
#ifndef FAST486_NO_FPU
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
@ -110,8 +155,17 @@ FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDC)
FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDD)
{
UCHAR Function;
FPU_CHECK();
/* Fetch the function number */
if (!Fast486FetchByte(State, &Function))
{
/* Exception occurred */
return FALSE;
}
#ifndef FAST486_NO_FPU
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
@ -125,8 +179,17 @@ FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDD)
FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDE)
{
UCHAR Function;
FPU_CHECK();
/* Fetch the function number */
if (!Fast486FetchByte(State, &Function))
{
/* Exception occurred */
return FALSE;
}
#ifndef FAST486_NO_FPU
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
@ -140,8 +203,17 @@ FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDE)
FAST486_OPCODE_HANDLER(Fast486FpuOpcodeDF)
{
UCHAR Function;
FPU_CHECK();
/* Fetch the function number */
if (!Fast486FetchByte(State, &Function))
{
/* Exception occurred */
return FALSE;
}
#ifndef FAST486_NO_FPU
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;