GMS30C2116 Datasheet, PDF (292/322 Pages) Hynix Semiconductor – USERS MANUAL

A-118
Shift Left Immediate (Double Word)
Appendix A. Instruction Set Details
SHLDI
Format:
Ln format
15
OP-code
1000 100
9 87
43
0
n
Ld-code
n
Ld-code encodes L0..L15 for Ld
n: Bit 8//bit 3..0 encode n = 0..31
Notation:
SHLDI Ld, n
Description:
The destination operand is shifted left by a number of bit positions specified by n = 0..31
as a shift by 0..31. The destination operand is interpreted as a signed or unsigned double-
word integer.
The Shift Left instruction inserts zeros in the vacated bit positions at the right.
The double-word Shift Left instruction executes in two cycles. The high-order operand in
Ld is shifted first. The result is undefined if Ls denotes the same register as Ld or Ldf.
Operation:
Ld//Ldf := Ld//Ldf << by n;
Z := Ld//Ldf = 0;
N := Ld(31);
C := undefined;
V := undefined;
Exceptions:
None.