diff options
Diffstat (limited to 'vdp.c')
| -rw-r--r-- | vdp.c | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -66,6 +66,24 @@ void render_sprite_cells(vdp_context * context) } } +void vdp_print_sprite_table(vdp_context * context) +{ + uint16_t sat_address = (context->regs[REG_SAT] & 0x7F) << 9; + uint16_t current_index = 0; + uint8_t count = 0; + do { + uint16_t address = current_index * 8 + sat_address; + uint8_t height = ((context->vdpmem[address+2] & 0x3) + 1) * 8; + uint8_t width = (((context->vdpmem[address+2] >> 2) & 0x3) + 1) * 8; + int16_t y = ((context->vdpmem[address] & 0x3) << 8 | context->vdpmem[address+1]) & 0x1FF; + int16_t x = ((context->vdpmem[address+ 2] & 0x3) << 8 | context->vdpmem[address + 3]) & 0x1FF; + uint16_t link = context->vdpmem[address+3] & 0x7F; + printf("Sprite %d: X=%d, Y=%d, Width=%u, Height=%u, Link=%u\n", current_index, x, y, width, height, link); + current_index = link; + count++; + } while (current_index != 0 && count < 80); +} + void scan_sprite_table(uint32_t line, vdp_context * context) { if (context->sprite_index && context->slot_counter) { |