Block-transfer Instruction - Programming Examples

Programming Examples

Save all the accumulators:

MOVEM 17,SAVAC+17 MOVEI 17,SAVAC ;Source is 0, destination is SAVAC BLT 17,SAVAC+16

Restore all the accumulators:

MOVSI 17,SAVAC ;Source is SAVAC, destination is 0 BLT 17,17

Zero 100 words starting at TABLE.

SETZM TABLE MOVE AC, ;Source and destination overlap BLT AC,TABLE+77

Move 77 words from TABLE through TABLE+76 to TABLE+1 through TABLE+77. BLT can't be done here because the source and destination overlap.

MOVE AC, POP AC,1(AC) ;Store TABLE+76 into TABLE+77, etc. JUMPL AC,.-1

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