Computer Hardware User's Guide

Load Integer LDI
13-123 Assembly Language Instructions
Syntax LDI src, dst
Operation src → dst
Operands src general addressing modes (G):
0 0 any CPU register
0 1 direct
1 0 indirect (disp = 0–255, IR0, IR1)
1 1 immediate
dst any CPU register
Opcode
31 2423 16 8 7 015
000 01 0
0 00
dst src
G
Description The src operand is loaded into the dst register. The dst and src operands are
assumed to be signed integers. An alternate form of LDI, LDP, is used to load
the data-page pointer register (DP). See the LDP instruction in Section 13.6.2
Optional Assembler Syntax beginning on page 13-34.
Cycles 1
Status Bits These condition flags are modified only if the destination register is R7–R0.
LUF Unaffected
LV Unaffected
UF 0
N 1 if a negative result is generated; 0 otherwise
Z 1 if a 0 result is generated; 0 otherwise
V 0
C Unaffected
OVM Operation is not affected by OVM bit value.Mode Bit