Mercurial > repos > blastem
diff vdp.h @ 2194:01ff005b08f6
Very rudimentary support for Game Gear VDP emulation
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Sun, 21 Aug 2022 22:29:47 -0700 |
| parents | a61b47d5489e |
| children | dc4268a778bc |
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--- a/vdp.h Sun Aug 21 16:41:22 2022 -0700 +++ b/vdp.h Sun Aug 21 22:29:47 2022 -0700 @@ -163,6 +163,14 @@ VDP_NUM_DEBUG_TYPES }; +enum { + VDP_GENESIS, + VDP_GAMEGEAR, + VDP_SMS2, + VDP_SMS, + VDP_TMS9918A +}; + typedef struct { system_header *system; //pointer to current line in framebuffer @@ -245,12 +253,14 @@ uint8_t debug_fb_indices[VDP_NUM_DEBUG_TYPES]; uint8_t debug_modes[VDP_NUM_DEBUG_TYPES]; uint8_t pushed_frame; + uint8_t type; + uint8_t cram_latch; uint8_t vdpmem[]; } vdp_context; -vdp_context *init_vdp_context(uint8_t region_pal, uint8_t has_max_vsram); +vdp_context *init_vdp_context(uint8_t region_pal, uint8_t has_max_vsram, uint8_t type); void vdp_free(vdp_context *context); void vdp_run_context_full(vdp_context * context, uint32_t target_cycles); void vdp_run_context(vdp_context * context, uint32_t target_cycles);