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Card Disk II softswitches are active also on writes. CP/M 85 relies on that.

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This commit is contained in:
Iván Izaguirre 2024-01-25 18:41:26 +01:00
parent 4b2a0d836f
commit ddfc462927
2 changed files with 7 additions and 7 deletions
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12
cardDisk2.go
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@ -124,7 +124,7 @@ func (c *CardDisk2) assign(a *Apple2, slot int) {
// Q1, Q2, Q3 and Q4 phase control soft switches,
for i := uint8(0); i < 4; i++ {
phase := i
c.addCardSoftSwitchR(phase<<1, func() uint8 {
c.addCardSoftSwitchRW(phase<<1, func() uint8 {
// Update magnets and position
drive := &c.drive[c.selected]
drive.phases &^= (1 << phase)
@ -137,7 +137,7 @@ func (c *CardDisk2) assign(a *Apple2, slot int) {
return c.dataLatch // All even addresses return the last dataLatch
}, fmt.Sprintf("PHASE%vOFF", phase))
c.addCardSoftSwitchR((phase<<1)+1, func() uint8 { // Update magnets and position
c.addCardSoftSwitchRW((phase<<1)+1, func() uint8 { // Update magnets and position
drive := &c.drive[c.selected]
drive.phases |= (1 << phase)
drive.trackStep = moveDriveStepper(drive.phases, drive.trackStep)
@ -151,21 +151,21 @@ func (c *CardDisk2) assign(a *Apple2, slot int) {
}
// Q4, power switch
c.addCardSoftSwitchR(0x8, func() uint8 {
c.addCardSoftSwitchRW(0x8, func() uint8 {
c.softSwitchQ4(false)
return c.dataLatch
}, "Q4DRIVEOFF")
c.addCardSoftSwitchR(0x9, func() uint8 {
c.addCardSoftSwitchRW(0x9, func() uint8 {
c.softSwitchQ4(true)
return 0
}, "Q4DRIVEON")
// Q5, drive selecion
c.addCardSoftSwitchR(0xA, func() uint8 {
c.addCardSoftSwitchRW(0xA, func() uint8 {
c.softSwitchQ5(0)
return c.dataLatch
}, "Q5SELECT1")
c.addCardSoftSwitchR(0xB, func() uint8 {
c.addCardSoftSwitchRW(0xB, func() uint8 {
c.softSwitchQ5(1)
return 0
}, "Q5SELECT2")

2
cardDisk2Sequencer.go
View File

@ -121,7 +121,7 @@ func (c *CardDisk2Sequencer) assign(a *Apple2, slot int) {
a.registerRemovableMediaDrive(&c.drive[0])
a.registerRemovableMediaDrive(&c.drive[1])
c.addCardSoftSwitches(func(address uint8, data uint8, write bool) uint8 {
c.addCardSoftSwitches(func(address uint8, data uint8, _ bool) uint8 {
/*
Slot card pins to SN74LS259 latch mapping:
slot_address[3,2,1] => latch_address[2,1,0]