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Only enable the change introduced in build 6807 for VLB Mach64GX, fixes #5701.

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OBattler
2025-06-25 19:31:14 +02:00
parent 6d7ab90fd3
commit 609a7e4549
1 changed files with 3 additions and 1 deletions
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4
src/video/vid_ati_mach64.c
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@@ -94,6 +94,7 @@ typedef struct mach64_t {
int type;
int pci;
int vlb;
uint8_t pci_slot;
uint8_t irq_state;
@@ -3857,7 +3858,7 @@ mach64_ext_outb(uint16_t port, uint8_t val, void *priv)
case 0x6aee:
case 0x6aef:
WRITE8(port, mach64->config_cntl, val);
if (!mach64->pci)
if (mach64->vlb)
mach64->linear_base = (mach64->config_cntl & 0x3ff0) << 18;
mach64_updatemapping(mach64);
@@ -4764,6 +4765,7 @@ mach64gx_init(const device_t *info)
video_inform(VIDEO_FLAG_TYPE_SPECIAL, &timing_mach64_vlb);
mach64->pci = !!(info->flags & DEVICE_PCI);
mach64->vlb = !!(info->flags & DEVICE_VLB);
mach64->pci_id = 'X' | ('G' << 8);
mach64->config_chip_id = 0x000000d7;
mach64->dac_cntl = 5 << 16; /*ATI 68860 RAMDAC*/