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Initialize the ADI 386SX NVR to 0x00's instead of 0xFF's, fixes #2761.

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OBattler
2022-10-30 02:57:15 +02:00
parent a20584fee4
commit 3a4c7e414e
4 changed files with 7 additions and 3 deletions
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3
src/chipset/intel_82335.c
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@@ -104,7 +104,7 @@ intel_82335_write(uint16_t addr, uint16_t val, void *priv)
shadowbios_write = !!(dev->regs[0x22] & 0x01);
/* Base System 512/640KB set */
mem_set_mem_state_both(0x80000, 0x20000, (dev->regs[0x22] & 0x08) ? ENABLE_TOP_128KB : DISABLE_TOP_128KB);
// mem_set_mem_state_both(0x80000, 0x20000, (dev->regs[0x22] & 0x08) ? ENABLE_TOP_128KB : DISABLE_TOP_128KB);
/* Video RAM shadow*/
mem_set_mem_state_both(0xa0000, 0x20000, (dev->regs[0x22] & (0x04 << 8)) ? DETERMINE_VIDEO_RAM_WRITE_ACCESS : DISABLED_SHADOW);
@@ -167,6 +167,7 @@ intel_82335_init(const device_t *info)
memset(dev->regs, 0, sizeof(dev->regs));
dev->regs[0x22] = 0x08;
dev->regs[0x28] = 0xf9;
dev->cfg_locked = 0;