diff options
Diffstat (limited to 'vdp.c')
| -rw-r--r-- | vdp.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -1246,9 +1246,9 @@ static void render_map_mode4(uint32_t line, int32_t col, vdp_context * context) if (context->regs[REG_MODE_1] & BIT_SPRITE_8PX) { sprite_src += 8; } - uint8_t *bg_src = context->tmp_buf_a + (((col & 1) * 8 + (context->hscroll_a & 0x7)) & 0x15); - for (int i = 0; i < 8; i++, bg_src++, sprite_src++) + for (int i = 0; i < 8; i++, sprite_src++) { + uint8_t *bg_src = context->tmp_buf_a + ((8 + i + col * 8 - (context->hscroll_a & 0x7)) & 15); if ((*bg_src & 0x4F) > 0x40) { //background plane has priority and is opaque if (context->debug) { @@ -1895,6 +1895,8 @@ static void vdp_h32_mode4(vdp_context * context, uint32_t target_cycles) case 253: external_slot(context); scan_sprite_table_mode4(context->vcounter, context);//Just a guess + context->buf_a_off = 8; + memset(context->tmp_buf_a, 0, 8); //reverse context slot counter so it counts the number of sprite slots //filled rather than the number of available slots //context->slot_counter = MAX_SPRITES_LINE - context->slot_counter; |