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

Implemented selector limits on some instructions - fixes LBA2.

Browse source 
GPFs in real mode now work.
Selectors correctly zeroed on far return to lower privilege.
This commit is contained in:
TomW 2014-08-13 20:33:56 +01:00
commit cd2c3b47ed
16 changed files with 404 additions and 462 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/x86_ops_call.h
View file

@ -1,7 +1,6 @@
#define CALL_FAR_w(new_seg, new_pc) \
old_cs = CS; \
old_pc = pc; \
if (ssegs) ss = oldss; \
oxpc = pc; \
pc = new_pc; \
optype = CALL; \
@ -27,7 +26,6 @@
#define CALL_FAR_l(new_seg, new_pc) \
old_cs = CS; \
old_pc = pc; \
if (ssegs) ss = oldss; \
oxpc = pc; \
pc = new_pc; \
optype = CALL; \
@ -54,7 +52,6 @@
#define CALL_FAR_nr(new_seg, new_pc) \
old_cs = CS; \
old_pc = pc; \
if (ssegs) ss = oldss; \
oxpc = pc; \
pc = new_pc; \
optype = CALL; \
@ -130,7 +127,6 @@ static int opFF_w_a16(uint32_t fetchdat)
break;
case 0x10: /*CALL*/
new_pc = geteaw(); if (abrt) return 0;
if (ssegs) ss = oldss;
PUSH_W(pc);
pc = new_pc;
if (is486) cycles -= 5;
@ -160,7 +156,6 @@ static int opFF_w_a16(uint32_t fetchdat)
break;
case 0x30: /*PUSH w*/
temp = geteaw(); if (abrt) return 0;
if (ssegs) ss = oldss;
PUSH_W(temp);
cycles -= ((mod == 3) ? 2 : 5);
break;
@ -196,7 +191,6 @@ static int opFF_w_a32(uint32_t fetchdat)
break;
case 0x10: /*CALL*/
new_pc = geteaw(); if (abrt) return 0;
if (ssegs) ss = oldss;
PUSH_W(pc);
pc = new_pc;
if (is486) cycles -= 5;
@ -226,7 +220,6 @@ static int opFF_w_a32(uint32_t fetchdat)
break;
case 0x30: /*PUSH w*/
temp = geteaw(); if (abrt) return 0;
if (ssegs) ss = oldss;
PUSH_W(temp);
cycles -= ((mod == 3) ? 2 : 5);
break;
@ -263,7 +256,6 @@ static int opFF_l_a16(uint32_t fetchdat)
break;
case 0x10: /*CALL*/
new_pc = geteal(); if (abrt) return 0;
if (ssegs) ss = oldss;
PUSH_L(pc);
pc = new_pc;
if (is486) cycles -= 5;
@ -293,7 +285,6 @@ static int opFF_l_a16(uint32_t fetchdat)
break;
case 0x30: /*PUSH l*/
temp = geteal(); if (abrt) return 0;
if (ssegs) ss = oldss;
PUSH_L(temp);
cycles -= ((mod == 3) ? 2 : 5);
break;
@ -329,7 +320,6 @@ static int opFF_l_a32(uint32_t fetchdat)
break;
case 0x10: /*CALL*/
new_pc = geteal(); if (abrt) return 0;
if (ssegs) ss = oldss;
PUSH_L(pc); if (abrt) return 0;
pc = new_pc;
if (is486) cycles -= 5;
@ -359,7 +349,6 @@ static int opFF_l_a32(uint32_t fetchdat)
break;
case 0x30: /*PUSH l*/
temp = geteal(); if (abrt) return 0;
if (ssegs) ss = oldss;
PUSH_L(temp);
cycles -= ((mod == 3) ? 2 : 5);
break;