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use decoded modrm instead of raw value. so we don't need to store it.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4207
This commit is contained in:
Peter Veenstra 2019-04-19 17:05:47 +00:00
parent dc6a76d354
commit ea4dd721b5
1 changed files with 18 additions and 9 deletions
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27
src/cpu/core_dynrec/dyn_fpu.h
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@ -68,7 +68,8 @@ static INLINE void dyn_fpu_top_swapped() {
}
static void dyn_eatree() {
Bitu group=(decode.modrm.val >> 3) & 7;
// Bitu group = (decode.modrm.val >> 3) & 7;
Bitu group = decode.modrm.reg&7; //It is already that, but compilers.
switch (group){
case 0x00: // FADD ST,STi
gen_call_function_R((void*)&FPU_FADD_EA,FC_OP1);
@ -102,7 +103,8 @@ static void dyn_eatree() {
static void dyn_fpu_esc0(){
dyn_get_modrm();
if (decode.modrm.val >= 0xc0) {
// if (decode.modrm.val >= 0xc0) {
if (decode.modrm.mod == 3) {
dyn_fpu_top();
switch (decode.modrm.reg){
case 0x00: //FADD ST,STi
@ -144,7 +146,8 @@ static void dyn_fpu_esc0(){
static void dyn_fpu_esc1(){
dyn_get_modrm();
if (decode.modrm.val >= 0xc0) {
// if (decode.modrm.val >= 0xc0) {
if (decode.modrm.mod == 3) {
switch (decode.modrm.reg){
case 0x00: /* FLD STi */
gen_mov_word_to_reg(FC_OP1,(void*)(&TOP),true);
@ -331,7 +334,8 @@ static void dyn_fpu_esc1(){
static void dyn_fpu_esc2(){
dyn_get_modrm();
if (decode.modrm.val >= 0xc0) {
// if (decode.modrm.val >= 0xc0) {
if (decode.modrm.mod == 3) {
switch(decode.modrm.reg){
case 0x05:
switch(decode.modrm.rm){
@ -363,7 +367,8 @@ static void dyn_fpu_esc2(){
static void dyn_fpu_esc3(){
dyn_get_modrm();
if (decode.modrm.val >= 0xc0) {
// if (decode.modrm.val >= 0xc0) {
if (decode.modrm.mod == 3) {
switch (decode.modrm.reg) {
case 0x04:
switch (decode.modrm.rm) {
@ -427,7 +432,8 @@ static void dyn_fpu_esc3(){
static void dyn_fpu_esc4(){
dyn_get_modrm();
if (decode.modrm.val >= 0xc0) {
// if (decode.modrm.val >= 0xc0) {
if (decode.modrm.mod == 3) {
switch(decode.modrm.reg){
case 0x00: /* FADD STi,ST*/
dyn_fpu_top_swapped();
@ -475,7 +481,8 @@ static void dyn_fpu_esc4(){
static void dyn_fpu_esc5(){
dyn_get_modrm();
if (decode.modrm.val >= 0xc0) {
// if (decode.modrm.val >= 0xc0) {
if (decode.modrm.mod == 3) {
dyn_fpu_top();
switch(decode.modrm.reg){
case 0x00: /* FFREE STi */
@ -545,7 +552,8 @@ static void dyn_fpu_esc5(){
static void dyn_fpu_esc6(){
dyn_get_modrm();
if (decode.modrm.val >= 0xc0) {
// if (decode.modrm.val >= 0xc0) {
if (decode.modrm.mod == 3) {
switch(decode.modrm.reg){
case 0x00: /*FADDP STi,ST*/
dyn_fpu_top_swapped();
@ -601,7 +609,8 @@ static void dyn_fpu_esc6(){
static void dyn_fpu_esc7(){
dyn_get_modrm();
if (decode.modrm.val >= 0xc0) {
// if (decode.modrm.val >= 0xc0) {
if (decode.modrm.mod == 3) {
switch (decode.modrm.reg){
case 0x00: /* FFREEP STi */
dyn_fpu_top();