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Add the AMI Excalibur, a VLB OPTi 596/597 machine.

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Also adds emulation of the OPTi 5x7 chipset, and introduces a clock divider for VLB on 64-bit bus systems.
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nerd73
2020-06-05 10:22:59 -06:00
parent 9fb12c323e
commit 3f0adb5211
12 changed files with 175 additions and 15 deletions
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src/video/vid_et4000w32.c
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@@ -1210,7 +1210,7 @@ uint8_t et4000w32p_pci_read(int func, int addr, void *p)
case 0x09: return 0; /*Programming interface*/
case 0x0a: return 0x00; /*Supports VGA interface, XGA compatible*/
case 0x0b: return is_pentium ? 0x03 : 0x00; /* This has to be done in order to make this card work with the two 486 PCI machines. */
case 0x0b: return cpu_64bitbus ? 0x03 : 0x00; /* This has to be done in order to make this card work with the two 486 PCI machines. */
case 0x10: return 0x00; /*Linear frame buffer address*/
case 0x11: return 0x00;