Intel ITANIUM ARCHITECTURE - SOFTWARE DEVELOPERS MANUAL VOLUME 1 REV 2.3 Manual page 1674
Hide thumbs
Also See for ITANIUM ARCHITECTURE - SOFTWARE DEVELOPERS MANUAL VOLUME 1 REV 2.3:
Table of Contents
Advertisement
STD—Set Direction Flag
Opcode
FD
Description
Sets the DF flag in the EFLAGS register. When the DF flag is set to 1, string operations
decrement the index registers (ESI and/or EDI).
Operation
DF 1;
Flags Affected
The DF flag is set. The CF, OF, ZF, SF, AF, and PF flags are unaffected.
Operation
DF 1;
Exceptions (All Operating Modes)
None.
4:372
Instruction
Description
STD
Set DF flag
Volume 4: Base IA-32 Instruction Reference
Advertisement
Table of Contents
