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Re: Console Emulation
@rogloh Yes my Z80 tracks cycles, though I wouldn't guarantee the counts are 100% correct in all cases. It also only half-heartedly implements XY flags (Do they have any use to actual software?). Though I think for almost all regular instructions they're correct. I think the P2 SNEcog port already exists, too. You can… -
Re: New SD mode P2 accessory board
LOL, endianness matters yet again. Having grown up with Z80 and x86 LE stuff I remember freaking out a little when I was first exposed to a Motorola PPC405 buses at work and reading the docs seeing them label registers with bit 0 on the left side of a 32 bit binary value in the MS bit position increasing to 31 on the right… -
P2ASM Sharing HUB RAM location between cogs?
Hello, I'm new to the propeller platform, but I've got a fairly extensive track record with assembly programming on other architectures (ARM, AVR, 6502, Z80). I'm having issues trying to share hub memory locations between cogs. And let me preface with I do not want to use spin2. I can't say that I'm a fan of there seeming… -
COMPUKIT UK101 (6502) Emulator
Hello, With all that Z80 stuff done recently, I realized I left my 6502 emulator alone for too long, so after some researches for a simple 6502-based computer, aside from the Commodore systems, I found this nice computer kit from 1979, the COMPUKIT UK101. In short it runs a MOS 6502 processor at 1MHz, 8k RAM, 1k memory… -
Re: Z80 discontinued after 48 years
If the FAB line process is killed, then all package variants will be EOL. PLCC68 prune sounds like normal low-volume line removal. Sharp, Toshiba and Kawasaki also have Z80 variants, not sure how 'active' in 2024 those are ?