diff options
Diffstat (limited to 'vdp.c')
| -rw-r--r-- | vdp.c | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -910,15 +910,16 @@ void render_map_output(uint32_t line, int32_t col, vdp_context * context) } } } else { - uint32_t cell = (line / 8) * (context->regs[REG_MODE_4] & BIT_H40 ? 40 : 32) + col; - uint32_t address = cell * 32 + (line % 8) * 4; + uint32_t base = (context->debug - 3) * 0x200; + uint32_t cell = base + (line / 8) * (context->regs[REG_MODE_4] & BIT_H40 ? 40 : 32) + col; + uint32_t address = (cell * 32 + (line % 8) * 4) & 0xFFFF; for (int32_t i = 0; i < 4; i ++) { *(dst++) = context->colors[(context->debug_pal << 4) | (context->vdpmem[address] >> 4)]; *(dst++) = context->colors[(context->debug_pal << 4) | (context->vdpmem[address] & 0xF)]; address++; } cell++; - address = cell * 32 + (line % 8) * 4; + address = (cell * 32 + (line % 8) * 4) & 0xFFFF; for (int32_t i = 0; i < 4; i ++) { *(dst++) = context->colors[(context->debug_pal << 4) | (context->vdpmem[address] >> 4)]; *(dst++) = context->colors[(context->debug_pal << 4) | (context->vdpmem[address] & 0xF)]; @@ -1739,7 +1740,7 @@ int vdp_data_port_write(vdp_context * context, uint16_t value) cur->cycle = context->cycles + ((context->regs[REG_MODE_4] & BIT_H40) ? 16 : 20)*FIFO_LATENCY; cur->address = context->address; cur->value = value; - if (context->cd & 0x20 && (context->regs[REG_DMASRC_H] & 0xC0) == 0x80) { + if (context->cd & 0x20 && (context->regs[REG_DMASRC_H] & 0xC0) == 0x80 && (context->regs[REG_MODE_2] & BIT_DMA_ENABLE)) { context->flags |= FLAG_DMA_RUN; } cur->cd = context->cd; |