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m680x0: fix case where the MMU trashed memory [R. Belmont]

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R. Belmont 2012-01-02 06:38:21 +00:00
parent 0e7eaf5d24
commit 6130a83ecd
1 changed files with 2 additions and 2 deletions
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4
src/emu/cpu/m68000/m68kmmu.h
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@ -208,7 +208,7 @@ INLINE UINT32 get_dt3_table_entry(m68ki_cpu_core *m68k, UINT32 tptr, UINT8 fc, U
m68k->mmu_tmp_sr |= ((tbl_entry2 & 0x0100) && !(fc & 4)) ? M68K_MMU_SR_SUPERVISOR_ONLY : 0; m68k->mmu_tmp_sr |= ((tbl_entry2 & 0x0100) && !(fc & 4)) ? M68K_MMU_SR_SUPERVISOR_ONLY : 0;
m68k->mmu_tmp_sr |= tbl_entry2 & 0x0004 ? M68K_MMU_SR_WRITE_PROTECT : 0; m68k->mmu_tmp_sr |= tbl_entry2 & 0x0004 ? M68K_MMU_SR_WRITE_PROTECT : 0;
if (!ptest) if (!ptest && dt != M68K_MMU_DF_DT0)
{ {
if (dt == M68K_MMU_DF_DT1 && !m68k->mmu_tmp_rw && !(m68k->mmu_tmp_sr & M68K_MMU_SR_WRITE_PROTECT)) if (dt == M68K_MMU_DF_DT1 && !m68k->mmu_tmp_rw && !(m68k->mmu_tmp_sr & M68K_MMU_SR_WRITE_PROTECT))
{ {
@ -794,7 +794,7 @@ void m68881_mmu_ops(m68ki_cpu_core *m68k)
} }
} }
printf("680x0: PLOADing ATC with logical %08x => phys %08x\n", ltmp, ptmp); // printf("680x0: PLOADing ATC with logical %08x => phys %08x\n", ltmp, ptmp);
// FIXME: rw bit? // FIXME: rw bit?
pmmu_atc_add(m68k, ltmp, ptmp, modes & 0x07); pmmu_atc_add(m68k, ltmp, ptmp, modes & 0x07);
return; return;