diff options
Diffstat (limited to 'vdp.h')
| -rw-r--r-- | vdp.h | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -8,6 +8,7 @@ #include <stdint.h> #include <stdio.h> +#include "system.h" #define VDP_REGS 24 #define CRAM_SIZE 64 @@ -52,6 +53,7 @@ #define FLAG2_SPRITE_COLLIDE 0x08 #define FLAG2_REGION_PAL 0x10 #define FLAG2_EVEN_FIELD 0x20 +#define FLAG2_BYTE_PENDING 0x40 #define DISPLAY_ENABLE 0x40 @@ -141,6 +143,7 @@ typedef struct { uint8_t *linebuf; //pointer to current line in framebuffer uint32_t *output; + system_header *system; uint16_t cram[CRAM_SIZE]; uint32_t colors[CRAM_SIZE*3]; uint32_t debugcolors[1 << (3 + 1 + 1 + 1)];//3 bits for source, 1 bit for priority, 1 bit for shadow, 1 bit for hilight @@ -175,6 +178,7 @@ typedef struct { uint8_t buf_b_off; uint8_t debug; uint8_t debug_pal; + uint8_t pending_byte; uint8_t *tmp_buf_a; uint8_t *tmp_buf_b; } vdp_context; @@ -189,7 +193,9 @@ void vdp_run_dma_done(vdp_context * context, uint32_t target_cycles); uint8_t vdp_load_gst(vdp_context * context, FILE * state_file); uint8_t vdp_save_gst(vdp_context * context, FILE * outfile); int vdp_control_port_write(vdp_context * context, uint16_t value); +void vdp_control_port_write_pbc(vdp_context * context, uint8_t value); int vdp_data_port_write(vdp_context * context, uint16_t value); +void vdp_data_port_write_pbc(vdp_context * context, uint8_t value); void vdp_test_port_write(vdp_context * context, uint16_t value); uint16_t vdp_control_port_read(vdp_context * context); uint16_t vdp_data_port_read(vdp_context * context); |