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Jarno Lehtinen 2022-04-05 22:26:15 +03:00 committed by GitHub
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C64_4joy_adapter/README.md
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@ -32,6 +32,7 @@ sei
- out can write from register to io
- only one io/data address space access within one instruction?
- lds/sts takes 2 cycles and in/out takes 1 cycle? ldi takes 1 cycle?
- lds/sts: \_SFR_MEM_ADDR(GPIOR2), in/out: \SFR_IO_ADDR(GPIOR0)
## avr asm
- http://www.nongnu.org/avr-libc/user-manual/inline_asm.html