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Merge pull request #4163 from Cacodemon345/c&t_69000_vsync_fix

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C&T 69000: Monochrome patterns are no longer horizontally reversed
This commit is contained in:
Miran Grča
2024-02-17 22:41:25 +01:00
committed by GitHub
parent 80ed664de0 575317fa08
commit 607c113a36
1 changed files with 5 additions and 3 deletions
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8
src/video/vid_chips_69000.c
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@@ -817,7 +817,10 @@ chips_69000_recalctimings(svga_t *svga)
svga->hdisp = ((chips->flat_panel_regs[0x20] | ((chips->flat_panel_regs[0x25] & 0xF) << 8)) + 1) << 3;
//svga->htotal = ((chips->flat_panel_regs[0x23] | ((chips->flat_panel_regs[0x26] & 0xF) << 8)) + 5) << 3;
//svga->hblank_end_val = svga->htotal - 1;
}
svga->hoverride = 1;
} else
svga->hoverride = 0;
if (svga->dispend > (((chips->flat_panel_regs[0x30] | ((chips->flat_panel_regs[0x35] & 0xF) << 8)) + 1))) {
svga->dispend = svga->vsyncstart = svga->vblankstart = ((chips->flat_panel_regs[0x30] | ((chips->flat_panel_regs[0x35] & 0xF) << 8)) + 1);
}
@@ -828,7 +831,6 @@ chips_69000_recalctimings(svga_t *svga)
//svga->vsyncstart = ((chips->flat_panel_regs[0x31] | ((chips->flat_panel_regs[0x35] & 0xF0) << 4)) + 1);
//svga->vtotal = ((chips->flat_panel_regs[0x33] | ((chips->flat_panel_regs[0x36] & 0xF) << 8)) + 2);
svga->clock = (cpuclock * (double) (1ULL << 32)) / svga->getclock((chips->flat_panel_regs[0x03] >> 2) & 3, svga->priv);
svga->hoverride = 1;
} else {
svga->hoverride = 0;
}
@@ -910,7 +912,7 @@ chips_69000_process_pixel(chips_69000_t* chips, uint32_t pixel)
else
pattern_data = chips_69000_readb_linear(chips->bitblt_running.bitblt.pat_addr + ((vert_pat_alignment + (chips->bitblt_running.y & 7)) & 7), chips);
is_true = !!(pattern_data & (1 << (((chips->bitblt_running.bitblt.destination_addr & 7) + chips->bitblt_running.x) & 7)));
is_true = !!(pattern_data & (1 << (7 - ((chips->bitblt_running.bitblt.destination_addr + chips->bitblt_running.x) & 7))));
if (!is_true && (chips->bitblt_running.bitblt.bitblt_control & (1 << 17))) {
return;