Apple-2-Tools/apple2-go
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Removed ROM code for slots that haven't been implemented yet

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This commit is contained in:
Will Angenent 2018-05-09 15:58:02 +01:00
parent 389773cb1d
commit fb6d868bc3
1 changed files with 14 additions and 0 deletions
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14
mmu/mmu.go
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@ -75,6 +75,14 @@ func MapSecondHalfOfIO(m *Memory) {
}
}
// emptySlot zeroes all RAM for a slot
func emptySlot(m *Memory, slot int) {
for i := slot * 0x100; i < (slot+1)*0x100; i++ {
m.PhysicalMemory.RomC1[i] = 0
m.PhysicalMemory.RomC2[i] = 0
}
}
func readApple2eROM(m *Memory) {
bytes, err := ioutil.ReadFile(RomPath)
if err != nil {
@ -91,6 +99,12 @@ func readApple2eROM(m *Memory) {
for i := 0x0; i < 0x3000; i++ {
m.PhysicalMemory.UpperROM[i] = bytes[i+0x1000]
}
// Empty slots that aren't yet implemented
emptySlot(m, 3)
emptySlot(m, 4)
emptySlot(m, 6)
emptySlot(m, 7)
}
func InitApple2eROM(m *Memory) {