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

Dynarec now jumps straight to GPF handler if it hits a NULL selector instead of relying on interpreter code to detect the GPF. Fixes hang in Windows 98 SE upgrade setup.

Browse source
This commit is contained in:
SarahW 2017-11-27 21:09:42 +00:00
commit 2f1514d3b2
2 changed files with 8 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

8
src/codegen_ops_x86-64.h
View file

@ -889,9 +889,9 @@ static inline void CHECK_SEG_READ(x86seg *seg)
addbyte(0xe8 | REG_ESI);
addbyte(0xff);
}
addbyte(0x0f); /*JE end*/
addbyte(0x0f); /*JE BLOCK_GPF_OFFSET*/
addbyte(0x84);
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
addlong(BLOCK_GPF_OFFSET - (block_pos + 4));
seg->checked = 1;
}
@ -925,9 +925,9 @@ static inline void CHECK_SEG_WRITE(x86seg *seg)
addbyte(0xe8 | REG_ESI);
addbyte(0xff);
}
addbyte(0x0f); /*JE end*/
addbyte(0x0f); /*JE BLOCK_GPF_OFFSET*/
addbyte(0x84);
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
addlong(BLOCK_GPF_OFFSET - (block_pos + 4));
seg->checked = 1;
}

8
src/codegen_ops_x86.h
View file

@ -626,8 +626,8 @@ static inline void CHECK_SEG_READ(x86seg *seg)
addlong((uint32_t)&seg->base);
addbyte(-1);
addbyte(0x0f);
addbyte(0x84); /*JE end*/
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
addbyte(0x84); /*JE BLOCK_GPF_OFFSET*/
addlong(BLOCK_GPF_OFFSET - (block_pos + 4));
seg->checked = 1;
}
@ -649,8 +649,8 @@ static inline void CHECK_SEG_WRITE(x86seg *seg)
addlong((uint32_t)&seg->base);
addbyte(-1);
addbyte(0x0f);
addbyte(0x84); /*JE end*/
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
addbyte(0x84); /*JE BLOCK_GPF_OFFSET*/
addlong(BLOCK_GPF_OFFSET - (block_pos + 4));
seg->checked = 1;
}