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Fixed the PC87306 LPT handler.

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This commit is contained in:
OBattler
2020-03-28 20:10:31 +01:00
parent dfa433194b
commit e3dc749fde
1 changed files with 21 additions and 27 deletions
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48
src/sio_pc87306.c
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@@ -96,35 +96,31 @@ lpt1_handler(pc87306_t *dev)
temp = dev->regs[0x01] & 3;
lptba = ((uint16_t) dev->regs[0x19]) << 2;
if (dev->regs[0x1b] & 0x10) {
if (dev->regs[0x1b] & 0x20) {
lpt_port = 0x278;
lpt_irq = 7;
} else {
switch (temp) {
case 0:
lpt_port = 0x378;
lpt_irq = 5;
}
} else {
switch (temp) {
case 0:
lpt_port = 0x378;
lpt_irq = (dev->regs[0x02] & 0x08) ? 7 : 5;
break;
case 1:
lpt_irq = (dev->regs[0x02] & 0x08) ? 7 : 5;
break;
case 1:
if (dev->regs[0x1b] & 0x40)
lpt_port = lptba;
lpt_irq = 7;
break;
case 2:
lpt_port = 0x278;
lpt_irq = 5;
break;
case 3:
lpt_port = 0x000;
lpt_irq = 0xff;
break;
}
else
lpt_port = 0x3bc;
lpt_irq = 7;
break;
case 2:
lpt_port = 0x278;
lpt_irq = 5;
break;
case 3:
lpt_port = 0x000;
lpt_irq = 0xff;
break;
}
if (dev->regs[0x1b] & 0x10)
lpt_irq = (dev->regs[0x1b] & 0x20) ? 7 : 5;
if (lpt_port)
lpt1_init(lpt_port);
@@ -212,8 +208,6 @@ pc87306_write(uint16_t port, uint8_t val, void *priv)
val = 0x4b;
valxor = val ^ dev->regs[dev->cur_reg];
dev->tries = 0;
if ((dev->cur_reg == 0x19) && !(dev->regs[0x1B] & 0x40))
return;
if ((dev->cur_reg <= 28) && (dev->cur_reg != 8)) {
if (dev->cur_reg == 0)
val &= 0x5f;