Mercurial > repos > simple16
comparison src/vdp.h @ 19:04fc17376999
Sort of working tile rendering and tile test ROM
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 28 Mar 2016 23:43:31 -0700 |
parents | 04d8efe7a1f0 |
children | 407725d9a02f |
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18:cc885122e9e3 | 19:04fc17376999 |
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17 uint16_t hcounter; | 17 uint16_t hcounter; |
18 | 18 |
19 uint16_t vscroll; | 19 uint16_t vscroll; |
20 uint16_t hscroll; | 20 uint16_t hscroll; |
21 | 21 |
22 uint16_t draw_source; | |
23 uint16_t draw_dest; | |
24 | |
22 uint16_t vram[32*512]; | 25 uint16_t vram[32*512]; |
23 uint8_t linebuffers[320*2]; | 26 uint8_t linebuffers[328*2]; |
24 uint16_t sram[64*2]; | 27 uint16_t sram[64*2]; |
25 uint16_t cram[64]; | 28 uint16_t cram[64]; |
26 | 29 |
27 uint8_t fifo_dest; | 30 uint8_t fifo_dest; |
31 uint8_t draw_counter; | |
32 uint8_t palpriority; | |
28 } vdp; | 33 } vdp; |
29 | 34 |
30 enum { | 35 enum { |
31 FIFO_DEST_INVALID, | 36 FIFO_DEST_INVALID, |
32 FIFO_DEST_VRAM, | 37 FIFO_DEST_VRAM, |
41 | 46 |
42 void vdp_init(vdp *context, uint32_t clock_div); | 47 void vdp_init(vdp *context, uint32_t clock_div); |
43 void vdp_run(vdp *context, uint32_t target); | 48 void vdp_run(vdp *context, uint32_t target); |
44 void vdp_write_address(vdp *context, uint16_t value); | 49 void vdp_write_address(vdp *context, uint16_t value); |
45 void vdp_write_data(vdp *context, uint16_t value); | 50 void vdp_write_data(vdp *context, uint16_t value); |
51 void vdp_write_hscroll(vdp *context, uint16_t value); | |
46 | 52 |
47 #endif //VDP_H_ | 53 #endif //VDP_H_ |