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Fix start address when calculating block size. Fixes rendering issues in Wolfenstein 3D.

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This commit is contained in:
SarahW 2019-04-02 20:40:40 +01:00
commit fc369826a4
1 changed files with 4 additions and 4 deletions
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8
src/386_dynarec.c
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@ -401,7 +401,7 @@ void exec386_dynarec(int cycs)
} }
else if (valid_block && !cpu_state.abrt) else if (valid_block && !cpu_state.abrt)
{ {
uint32_t start_pc = cpu_state.pc; uint32_t start_pc = cs+cpu_state.pc;
const int max_block_size = (block->flags & CODEBLOCK_BYTE_MASK) ? ((128 - 25) - (start_pc & 0x3f)) : 1000; const int max_block_size = (block->flags & CODEBLOCK_BYTE_MASK) ? ((128 - 25) - (start_pc & 0x3f)) : 1000;
cpu_block_end = 0; cpu_block_end = 0;
@ -447,7 +447,7 @@ void exec386_dynarec(int cycs)
will prevent any block from spanning more than will prevent any block from spanning more than
2 pages. In practice this limit will never be 2 pages. In practice this limit will never be
hit, as host block size is only 2kB*/ hit, as host block size is only 2kB*/
if ((cpu_state.pc - start_pc) >= max_block_size) if (((cs+cpu_state.pc) - start_pc) >= max_block_size)
CPU_BLOCK_END(); CPU_BLOCK_END();
if (trap) if (trap)
@ -477,7 +477,7 @@ void exec386_dynarec(int cycs)
else if (!cpu_state.abrt) else if (!cpu_state.abrt)
{ {
/*Mark block but do not recompile*/ /*Mark block but do not recompile*/
uint32_t start_pc = cpu_state.pc; uint32_t start_pc = cs+cpu_state.pc;
const int max_block_size = (block->flags & CODEBLOCK_BYTE_MASK) ? ((128 - 25) - (start_pc & 0x3f)) : 1000; const int max_block_size = (block->flags & CODEBLOCK_BYTE_MASK) ? ((128 - 25) - (start_pc & 0x3f)) : 1000;
cpu_block_end = 0; cpu_block_end = 0;
@ -519,7 +519,7 @@ void exec386_dynarec(int cycs)
will prevent any block from spanning more than will prevent any block from spanning more than
2 pages. In practice this limit will never be 2 pages. In practice this limit will never be
hit, as host block size is only 2kB*/ hit, as host block size is only 2kB*/
if ((cpu_state.pc - start_pc) >= max_block_size) if (((cs+cpu_state.pc) - start_pc) >= max_block_size)
CPU_BLOCK_END(); CPU_BLOCK_END();
if (trap) if (trap)