diff options
Diffstat (limited to 'vdp.h')
| -rw-r--r-- | vdp.h | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -1,6 +1,6 @@ /* Copyright 2013 Michael Pavone - This file is part of BlastEm. + This file is part of BlastEm. BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. */ #ifndef VDP_H_ @@ -47,6 +47,7 @@ #define FLAG2_VINT_PENDING 0x01 #define FLAG2_HINT_PENDING 0x02 +#define FLAG2_READ_PENDING 0x04 #define DISPLAY_ENABLE 0x40 @@ -149,6 +150,7 @@ typedef struct { uint16_t col_1; uint16_t col_2; uint16_t last_write_val; + uint16_t last_fifo_val; uint8_t v_offset; uint8_t dma_cd; uint8_t hint_counter; @@ -172,9 +174,11 @@ 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); int vdp_data_port_write(vdp_context * context, uint16_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); uint16_t vdp_hv_counter_read(vdp_context * context); +uint16_t vdp_test_port_read(vdp_context * context); void vdp_adjust_cycles(vdp_context * context, uint32_t deduction); uint32_t vdp_next_hint(vdp_context * context); uint32_t vdp_next_vint(vdp_context * context); |