A.5.178.1 Pseudo-code examples
a16 MOVSB without segment override and with Direction Flag clear (UP) is
equal to
MOV BYTE [ES:DI], BYTE [SI]
LEA SI, [SI + 1]
LEA DI, [DI + 1]
a16 REP MOVSW without segment override and with Direction Flag clear
(UP) is equal to
JCXZ @FF
@@:
MOV WORD [ES:DI], WORD [SI]
LEA SI, [SI + 2]
LEA DI, [DI + 2]
a16 LOOP @B
@@:
a32 ES MOVSD with Direction Flag set (DN) is equal to
MOV DWORD [ES:EDI], DWORD [ES:ESI]
LEA ESI, [ESI - 4]
LEA EDI, [EDI - 4]