xa65: xa65 (open-source 6502 cross assembler)
xa65: 
xa65: xa is a high-speed, two-pass portable cross-assembler. It understands
xa65: mnemonics and generates code for NMOS 6502s (such as 6502A, 6504,
xa65: 6507, 6510, 7501, 8500, 8501, 8502 ...), CMOS 6502s (65C02 and
xa65: Rockwell R65C02) and the 65816.
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