diff options
| -rw-r--r-- | vdp.c | 11 |
1 files changed, 10 insertions, 1 deletions
@@ -1335,6 +1335,9 @@ static void vdp_advance_line(vdp_context *context) context->vcounter = 0x1E5; } uint32_t inactive_start = (context->latched_mode & BIT_PAL ? PAL_INACTIVE_START : NTSC_INACTIVE_START); + if (!(context->regs[REG_MODE_2] & BIT_MODE_5)) { + inactive_start = MODE4_INACTIVE_START; + } if (!headless) { if (!context->vcounter && !context->output) { context->output = render_get_framebuffer(context->flags2 & FLAG2_EVEN_FIELD ? FRAMEBUFFER_EVEN : FRAMEBUFFER_ODD, &context->output_pitch); @@ -1502,7 +1505,7 @@ static void vdp_advance_line(vdp_context *context) render_sprite_cells_mode4(context);\ scan_sprite_table(context->vcounter, context);\ if (context->flags & FLAG_DMA_RUN) { run_dma_src(context, -1); } \ - if (slot == 147) {\ + if ((slot+1) == 147) {\ context->hslot = 233;\ } else {\ context->hslot++;\ @@ -2323,6 +2326,9 @@ uint16_t vdp_control_port_read(vdp_context * context) uint32_t line= context->vcounter; uint32_t slot = context->hslot; uint32_t inactive_start = (context->latched_mode & BIT_PAL ? PAL_INACTIVE_START : NTSC_INACTIVE_START); + if (!(context->regs[REG_MODE_2] & BIT_MODE_5)) { + inactive_start = MODE4_INACTIVE_START; + } if ((line >= inactive_start && line < 0x1FF) || !(context->regs[REG_MODE_2] & BIT_DISP_EN)) { value |= 0x8; } @@ -2557,6 +2563,9 @@ uint32_t vdp_next_vint(vdp_context * context) uint32_t vdp_next_vint_z80(vdp_context * context) { uint32_t inactive_start = context->latched_mode & BIT_PAL ? PAL_INACTIVE_START : NTSC_INACTIVE_START; + if (!(context->regs[REG_MODE_2] & BIT_MODE_5)) { + inactive_start = MODE4_INACTIVE_START; + } if (context->vcounter == inactive_start) { if (context->regs[REG_MODE_4] & BIT_H40) { if (context->hslot >= LINE_CHANGE_H40 && context->hslot <= VINT_SLOT_H40) { |