From 6f8401c72c228d61f87d0cdc173fdc29ae3e0b69 Mon Sep 17 00:00:00 2001 From: SarahW Date: Mon, 23 Nov 2020 21:57:15 +0000 Subject: [PATCH] ATI 28800 (VGA Charger) was selecting the wrong dot clock for VGA standard graphics modes. In the absence of better information or a board to test with, I am currently assuming the table I used as reference was incorrect. Changing timings to allow for correct refresh rate. --- src/vid_ati28800.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/vid_ati28800.c b/src/vid_ati28800.c index 871f1c5..55ccad0 100644 --- a/src/vid_ati28800.c +++ b/src/vid_ati28800.c @@ -282,7 +282,7 @@ void ati28800_recalctimings(svga_t *svga) case 0x09: svga->clock = (cpuclock * (double)(1ull << 32)) / 32000000.0; break; case 0x0A: svga->clock = (cpuclock * (double)(1ull << 32)) / 37500000.0; break; case 0x0B: svga->clock = (cpuclock * (double)(1ull << 32)) / 39000000.0; break; - case 0x0C: svga->clock = (cpuclock * (double)(1ull << 32)) / 40000000.0; break; + case 0x0C: svga->clock = (cpuclock * (double)(1ull << 32)) / 50350000.0; break; case 0x0D: svga->clock = (cpuclock * (double)(1ull << 32)) / 56644000.0; break; case 0x0E: svga->clock = (cpuclock * (double)(1ull << 32)) / 75000000.0; break; case 0x0F: svga->clock = (cpuclock * (double)(1ull << 32)) / 65000000.0; break;