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back2root:ibm-pc-ms-dos:instr:das

DAS

DAS - Decimal Adjust for Subtraction

Corrects result (in AL) of a previous BCD subtraction operation.

Contents of AL are changed to a pair of packed decimal digits.

Usage:

	DAS		;

Modifies flags:

AF CF PF SF ZF (OF undefined)

Clocks Size
Operands 808x 286 386 486 Bytes
none 4 3 4 2 1
back2root/ibm-pc-ms-dos/instr/das.txt · Dernière modification : 2023/03/03 23:53 de 127.0.0.1