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izapple2
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Fix serpentine hang waiting for noise on the cassette port

This commit is contained in:
Ivan Izaguirre 2020-08-13 16:43:40 +02:00
parent 53842b2b4e
commit 20c9a842d5
1 changed files with 4 additions and 3 deletions
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7
softSwitches2.go
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@ -33,7 +33,7 @@ func addApple2SoftSwitches(io *ioC0Page) {
io.addSoftSwitchR(0x30, speakerSoftSwitch, "SPEAKER") // Speaker
io.addSoftSwitchR(0x40, notImplementedSoftSwitchR, "STROBE") // Game connector Strobe
// Note: Some sources indicate that all these cover 16 positions
// for read and write. But the Apple2e take over some of them, with
// for read and write. But the Apple2e takes over some of them, with
// the prevention on acting only on writes.
io.addSoftSwitchRW(0x50, getSoftSwitch(ioFlagText, false), "TEXTOFF")
@ -80,8 +80,9 @@ func addApple2SoftSwitches(io *ioC0Page) {
io.softSwitchesData[ioFlag2RGBCard] = ssOn
}
func notImplementedSoftSwitchR(*ioC0Page) uint8 {
return 0
func notImplementedSoftSwitchR(io *ioC0Page) uint8 {
// Return random info. Some games (Serpentine) used CASSETTE and get stuck if not changing.
return uint8(io.apple2.cpu.GetCycles())
}
func notImplementedSoftSwitchW(*ioC0Page, uint8) {