http://margo.student.utwente.nl/el/
micros/6502

as65_108  .zip      Assembler for 6502/65SC02 [1.08].
kbd6502   .zip      PC-AT keyboard interface routine for 6502.
ps65a12   .zip      Motorola 6502 cross assembler.
svasm02   .zip      Cross assembler for 6502 and 65C02.