Mercurial > repos > blastem
diff sms.c @ 2321:2eda5f81f91e
More fully baked ROM db support for SMS
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Thu, 15 Jun 2023 09:36:11 -0700 |
parents | 8016dbb0fcde |
children | 26597f9805b4 |
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--- a/sms.c Tue May 09 09:03:37 2023 -0700 +++ b/sms.c Thu Jun 15 09:36:11 2023 -0700 @@ -165,7 +165,7 @@ return vcontext; } -static void *cart_ram_write(uint32_t location, void *vcontext, uint8_t value) +void *sms_cart_ram_write(uint32_t location, void *vcontext, uint8_t value) { z80_context *z80 = vcontext; sms_context *sms = z80->system; @@ -712,6 +712,13 @@ warning("Unrecognized VDP type %s\n", vdp_str); } } + for (uint32_t i = 0; i < sms->header.info.map_chunks; i++) + { + memmap_chunk *chunk = sms->header.info.map + i; + if ((chunk->flags == MMAP_READ) && !chunk->buffer && chunk->start > 0xC000) { + chunk->buffer = sms->ram + ((chunk->start - 0xC000) & 0x1FFF); + } + } if (is_gamegear) { init_z80_opts(zopts, sms->header.info.map, sms->header.info.map_chunks, io_gg, 6, 15, 0xFF); sms->start_button_region = 0xC0;