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RET Return from subroutine Words: 1 Cycles: 2 Affects: none
Operation: The next stack value is moved into the program counter. On '5x devices, W is cleared to 0.
Coding: '5x RETLW 0 'xx RETURN
RETI Return from Interrupt Words: 1 Cycles: 2 Affects: none
Operation: The next stack value is moved into the program counter. Interrupts are enabled by setting the Global Interrupt Enable bit, GIE (INTCON.7).
Coding: 'xx RETFIE
RETW literal1,literal2,... Assemble RETâs which load W with literal data Words: ? Cycles: 2 per RETLW Affects: none
Operation: A list of RETâs with literal data in the W area is assembled, which can be accessed by JMP PC+W or JMP W instructions. This is useful for lookup tables.
Coding: RETLW literal1 (RETLW literal2) (RETLW ...)
Example: jmp pc+w ;Jump to byte at location pc+w
retw 00100011b ;Return with w holding appropriate retw 00h,01h,02h,03h ;value retw âEnter cycle countâ |


