ocr: MC6809E INSTAUCTION SET The instruction set of the MC6809E IS Simalar to that of the Transler/Exchange Postbyte The MC6800 number and of is upward apcodes has compatible been at reduced the trom source 72 to code 59, level bur Source Destnation because of the expanded architecture and additional ad. Aegister Field dressing modes, the number of available opcodes (with dif- 0000=DIA.9I 1000=A ferent addressing modes) has risen from 197 to 1464 0001-X 1001=8 Some of the new instructions are described In detail 0010=Y 1010=CCA below. 0011=U 1011-OPA 0T00=S 0101= PC PSHU/PSHS NOTE The push instruct ...
