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Port diff 1526 to Advanced/EV.

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This commit is contained in:
SarahW 2020-03-07 14:36:03 +00:00
commit da26a60364
1 changed files with 36 additions and 1 deletions
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37
src/intel.c
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@ -88,11 +88,46 @@ void intel_batman_init()
uint8_t endeavor_brdconfig(uint16_t port, void *p)
{
uint8_t temp;
CPU *cpu_s = &models[model].cpu[cpu_manufacturer].cpus[cpu];
// pclog("endeavor_brdconfig read port=%04x\n", port);
switch (port)
{
case 0x79:
return 0xff;
// Bit # | Description | Bit = 1 | Bit = 0
// 0 | Internal CPU Clock Freq. (Switch 6) | 3/2x | 2x (Manual has these swapped in one place?)
// 1 | Soft Off capable power supply | No | Yes
// 2 | On-board Audio present | Yes | No
// 3 | External CPU clock (Switch 7) | |
// 4 | External CPU clock (Switch 8) | |
// 5 | Setup Disable (Switch 5) | Enable access | Disable access
// 6 | Clear CMOS (Switch 4) | Keep values | Clear values
// 7 | Password Clear (Switch 3) | Keep password | Clear password
// Bus Speed | Switch 7 | Switch 8
// 50 MHz | Off | Off
// 60 Mhz | On | Off
// 66 MHz | Off | On
// Multiplier for each supported processor-
// -The 3/2 setting is used for 75 MHz, 90 MHz, and 100 MHz processors
// -The 2 times setting is used for 120 MHz processors.
if (cpu_s->rspeed == 75000000 && cpu_s->pci_speed == 25000000)
temp = 0x01;
else if (cpu_s->rspeed == 90000000 && cpu_s->pci_speed == 30000000)
temp = 0x01 | 0x08;
else if (cpu_s->rspeed == 100000000 && cpu_s->pci_speed == 25000000)
temp = 0x00;
else if (cpu_s->rspeed == 100000000 && cpu_s->pci_speed == 33333333)
temp = 0x01 | 0x10;
else if (cpu_s->rspeed == 120000000 && cpu_s->pci_speed == 30000000)
temp = 0x08;
else if (cpu_s->rspeed == 133333333 && cpu_s->pci_speed == 33333333)
temp = 0x10;
else
temp = 0x10; // TODO: how are the overdrive processors configured?
return 0xe2 | temp;
}
return 0;
}