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Remove AWARD 286 BIOS turbo hack

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CPU clock control is now implemented in the C&T SCAT chipset.
This commit is contained in:
pcem-maintainer 2021-06-20 17:50:34 -03:00
commit 974f663d92
1 changed files with 8 additions and 11 deletions
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19
src/keyboard_at.c
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@ -675,17 +675,14 @@ void keyboard_at_write(uint16_t port, uint8_t val, void *priv)
keyboard_at_adddata(0x00);
break;
case 0xe8: /* Super-286TR: turbo ON */
// TODO: 0xe8 is always followed by 0xba
// TODO: I don't know where to call cpu_set_turbo(1) to avoid slow POST after ctrl-alt-del when on low speed (if this is the real behavior!)
if (romset == ROM_HYUNDAI_SUPER286TR)
cpu_set_turbo(1); // 12 MHz
break;
case 0xe9: /* Super-286TR: turbo OFF */
if (romset == ROM_HYUNDAI_SUPER286TR)
cpu_set_turbo(0); // 8 MHz
break;
// AWARD BIOS: called after turbo ON/OFF in the
// Hyundai Super-286TR and probably other AWARD 286
// bioses. Related to the Turbo LEDs. Exact function
// can't be confirmed because the system in question
// has no such leds.
//case 0xe8: /* Turbo ON, always followed by 0xba */
//case 0xe9: /* Turbo OFF */
//break;
case 0xef: /*??? - sent by AMI486*/
break;