Online HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens
SAL/SHL - Shift Arithmetic Left / Shift Logical Left
Usage: SAL dest,count
SHL dest,count
Modifies flags: CF OF PF SF ZF (AF undefined)
Shifts the destination left by "count" bits with zeroes shifted
in on right. The Carry Flag contains the last bit shifted out.
Clocks Size
Operands 808x 286 386 486 Bytes
reg,1 2 2 3 3 2
mem,1 15+EA 7 7 4 2-4 (W88=23+EA)
reg,CL 8+4n 5+n 3 3 2
mem,CL 20+EA+4n 8+n 7 4 2-4 (W88=28+EA+4n)
reg,immed8 - 5+n 3 2 3
mem,immed8 - 8+n 7 4 3-5
- see Instruction Timing
[helppc.bosbyte.nl] shl