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The 65C816, the 16-bit CMOS descendant of the 6502, also supports 24-bit addressing, which results in instructions being assembled with three-byte operands, also arranged in little-endian format. The remaining 105 opcodes are undefined.
The 65xx family of microprocessors, consisting of the MOS Technology 6502 and its derivatives, the WDC 65C02, WDC 65C802 and WDC 65C816, and CSG 65CE02, all handle interrupts in a similar fashion. There are three hardware interrupt signals common to all 65xx processors and one software interrupt, the BRK instruction.
The CSG 65CE02 is an 8/16-bit microprocessor developed by Commodore Semiconductor Group in 1988. [1] It is a member of the MOS Technology 6502 family, developed from the CMOS WDC 65C02 released by the Western Design Center in 1983.
The Western Design Center (WDC) 65C02 microprocessor is an enhanced CMOS version of the popular nMOS-based 8-bit MOS Technology 6502.It uses less power than the original 6502, fixes several problems, and adds new instructions.
The Mitsubishi 740 family has a processor core that executes a superset of the 6502 instruction set including many of the extensions added in the 65C02. There is a core set of new instructions common across all 740 family members, plus other instructions that exist in specific parts.
The computer is named after Bill Mensch, designer of the 6502 and subsequent series of microprocessor. The system is designed for hobbyists and people who enjoy computer programming , especially at the assembly language level, and includes a basic set of peripherals which can be expanded by the owner.
Download as PDF; Printable version; ... Atari 8-bit computers (3 C, 39 ... VIC-20 (1 C, 10 P) Pages in category "6502-based home computers" The following 31 pages are ...
The ROM firmware and the vCPU interpreter are written in the 8-bit native assembly code. 16-bit vCPU interpreter, that implements a von Neumann architecture and has 34 instructions. It loads and runs programs from RAM. The integrated programs are written for this vCPU. MOS 6502 emulator (experimental), able to run MOS 6502 machine code. [5] [6]