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Split the 286/386 interpreter away from the 486+ one (the 286/386 interpreter does not use the pccache's, readlookup's, and writelookup's as the emulated CPU's are too slow for them to be required, and also has more accurate FPU timings), also added a LPT status read function for future-proofing.

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OBattler
2023-08-08 19:39:52 +02:00
parent 5f72dc7d56
commit b1c5cbaf47
23 changed files with 3759 additions and 144 deletions
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5
src/mem/mem.c
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@@ -119,14 +119,15 @@ int purgeable_page_count = 0;
uint8_t high_page = 0; /* if a high (> 4 gb) page was detected */
mem_mapping_t *read_mapping[MEM_MAPPINGS_NO];
mem_mapping_t *write_mapping[MEM_MAPPINGS_NO];
/* FIXME: re-do this with a 'mem_ops' struct. */
static uint8_t *page_lookupp; /* pagetable mmu_perm lookup */
static uint8_t *readlookupp;
static uint8_t *writelookupp;
static mem_mapping_t *base_mapping;
static mem_mapping_t *last_mapping;
static mem_mapping_t *read_mapping[MEM_MAPPINGS_NO];
static mem_mapping_t *write_mapping[MEM_MAPPINGS_NO];
static mem_mapping_t *read_mapping_bus[MEM_MAPPINGS_NO];
static mem_mapping_t *write_mapping_bus[MEM_MAPPINGS_NO];
static uint8_t *_mem_exec[MEM_MAPPINGS_NO];