GMS30C2116 Datasheet, PDF (290/322 Pages) Hynix Semiconductor – USERS MANUAL

A-116
Shift Left (Single Word)
Appendix A. Instruction Set Details
SHL
Format:
LL format
15
OP-code
1000 1011
87
43
0
Ld-code
Ls-code
Ld-code encodes L0..L15 for Ld
Ls-code encodes L0..L15 for Ls
Notation:
SHL Ld, Ls
Description:
The destination operand is shifted left by a number of bit positions specified by bits 4..0 of
the source operand as a shift by 0..31. The higher-order bits of the source operand are
ignored. The destination operand is interpreted as a signed or unsigned integer.
The Shift Left instruction inserts zeros in the vacated bit positions at the right.
Operation:
Ld := Ld << by Ls(4..0);
Z := Ld = 0;
N := Ld(31);
C := undefined;
V := undefined;
Exceptions:
None.