35 lines
1013 B
Go
35 lines
1013 B
Go
package izapple2
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/*
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RAMWorks style card on the Apple IIe aus slot.
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https://patents.google.com/patent/US4601018
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https://ae.applearchives.com/apple_e/ramworks_iii/ramworks_iii_basic_manual_1.pdf
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Diagnostics disks:
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https://ae.applearchives.com/apple_e/ramworks_iii/ramworks_diagnostics.zip
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It's is like the extra 64kb on an Apple IIe 80col 64kb card, but with up to 256 banks
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*/
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func setupRAMWorksCard(a *Apple2, banks int) {
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a.mmu.initExtendedRAM(banks)
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ssr := func(_ *ioC0Page) uint8 {
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return a.mmu.extendedRAMBlock
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}
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ssw := func(_ *ioC0Page, value uint8) {
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a.mmu.setExtendedRAMActiveBlock(value)
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}
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// Does not have a slot assigned
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a.io.addSoftSwitchR(0x71, ssr, "RAMWORKSR")
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a.io.addSoftSwitchR(0x73, ssr, "RAMWORKSR")
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a.io.addSoftSwitchR(0x75, ssr, "RAMWORKSR")
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a.io.addSoftSwitchR(0x77, ssr, "RAMWORKSR")
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a.io.addSoftSwitchW(0x71, ssw, "RAMWORKSW")
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a.io.addSoftSwitchW(0x73, ssw, "RAMWORKSW")
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a.io.addSoftSwitchW(0x75, ssw, "RAMWORKSW")
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a.io.addSoftSwitchW(0x77, ssw, "RAMWORKSW")
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}
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