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Fix issues accessing W83877* config registers. Fixes floppy drives on ASUS and FIC boards.

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This commit is contained in:
SarahW 2019-05-18 14:51:14 +01:00
commit b16e3d84bd
1 changed files with 10 additions and 4 deletions
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14
src/w83877tf.c
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@ -36,9 +36,9 @@ static void w83877tf_write_reg(w83877tf_t *w83877tf, int index, uint8_t val)
{
case 0x0c:
if (w83877tf->regs[0x16] & 1)
w83877tf->unlock_key = (w83877tf->regs[0xc] & (1 << 5)) ? 0x87 : 0x86;
w83877tf->unlock_key = (val & (1 << 5)) ? 0x87 : 0x86;
else
w83877tf->unlock_key = (w83877tf->regs[0xc] & (1 << 5)) ? 0x89 : 0x88;
w83877tf->unlock_key = (val & (1 << 5)) ? 0x89 : 0x88;
break;
case 0x16:
@ -228,9 +228,15 @@ static void w83877_common_init(int chip, uint16_t base, uint8_t key)
w83877tf_global.regs[0x03] = 0x30;
w83877tf_global.regs[0x09] = 0x0c;
w83877tf_global.regs[0x0b] = 0x0c;
w83877tf_global.regs[0x0c] = 0x28;
if (key == 0x88 || key == 0x86)
w83877tf_global.regs[0x0c] = 0x08;
else
w83877tf_global.regs[0x0c] = 0x28;
w83877tf_global.regs[0x0d] = 0xa3;
w83877tf_global.regs[0x16] = 0x04;
if (base == 0x250)
w83877tf_global.regs[0x16] = 0x04;
else
w83877tf_global.regs[0x16] = 0x05;
w83877tf_global.regs[0x20] = 0xfc;
w83877tf_global.regs[0x23] = 0xde;
w83877tf_global.regs[0x24] = 0xfe;