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    I'm trying to identify RICOH RF5A93 uC

    Ricoh did both 6502 and 65816 CPUs. In your case I would check WDC 65C816 for more details.

    Eberhard H. wrote in post #8022637: > Ricoh did both 6502 and 65816 CPUs. > In your case I would check WDC 65C816 for more details. Unfortunately both CPUs use 6502 opcodes, so I'd expect 0xA9 (LDA) or 0x4C (JMP) would be some of the most popular hex codes

    µC & Digital Electronics ·Tomek · ·6 Replies

  • Thread

    Algorithm for x/63 and x/127

    started computer game programming in 1980, I realized I did not have any divider at all in my poor 6502 and also no time with the only 2MHz to perform divisions. Therefore I sat down and wrote a document covering most of the required divisions for gaming (like 10,60,3600 for times and 100,1000, for lengths

    FPGA, VHDL & Verilog ·Nikolaos Kavvadias · ·13 Replies