Mercurial > repos > blastem
diff vdp.h @ 1906:2d462aa78349
Make VDP VSRAM capacity respect model selection
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Thu, 27 Feb 2020 18:38:15 -0800 |
| parents | 7bb4081e9e52 |
| children | 039553703c20 |
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--- a/vdp.h Wed Feb 26 22:41:10 2020 -0800 +++ b/vdp.h Thu Feb 27 18:38:15 2020 -0800 @@ -16,7 +16,8 @@ #define SHADOW_OFFSET CRAM_SIZE #define HIGHLIGHT_OFFSET (SHADOW_OFFSET+CRAM_SIZE) #define MODE4_OFFSET (HIGHLIGHT_OFFSET+CRAM_SIZE) -#define VSRAM_SIZE 40 +#define MIN_VSRAM_SIZE 40 +#define MAX_VSRAM_SIZE 64 #define VRAM_SIZE (64*1024) #define BORDER_LEFT 13 #define BORDER_RIGHT 14 @@ -178,6 +179,7 @@ uint32_t debugcolors[1 << (3 + 1 + 1 + 1)];//3 bits for source, 1 bit for priority, 1 bit for shadow, 1 bit for hilight uint16_t cram[CRAM_SIZE]; uint32_t frame; + uint32_t vsram_size; uint8_t cd; uint8_t flags; uint8_t regs[VDP_REGS]; @@ -186,7 +188,7 @@ uint32_t pending_vint_start; uint32_t pending_hint_start; uint32_t top_offset; - uint16_t vsram[VSRAM_SIZE]; + uint16_t vsram[MAX_VSRAM_SIZE]; uint16_t vscroll_latch[2]; uint16_t vcounter; uint16_t inactive_start; @@ -239,7 +241,7 @@ -vdp_context *init_vdp_context(uint8_t region_pal); +vdp_context *init_vdp_context(uint8_t region_pal, uint8_t has_max_vsram); 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);