Specifications

Assembler Pseudo-Instructions
Pseudo-instructions are used in assembly source code like regular assembly instructions. Each pseudo-
instruction is implemented at the machine level using an equivalent instruction. The movia pseudo-
instruction is the only exception, being implemented with two instructions. Most pseudo-instructions do
not appear in disassembly views of machine code.
Table 8-6: Assembler Pseudo-Instructions
Pseudo-Instruction Equivalent Instruction
bgt rA, rB, label blt rB, rA, label
bgtu rA, rB, label bltu rB, rA, label
ble rA, rB, label bge rB, rA, label
bleu rA, rB, label bgeu rB, rA, label
cmpgt rC, rA, rB cmplt rC, rB, rA
cmpgti rB, rA, IMMED cmpgei rB, rA, (IMMED+1)
cmpgtu rC, rA, rB cmpltu rC, rB, rA
cmpgtui rB, rA, IMMED cmpgeui rB, rA, (IMMED+1)
cmple rC, rA, rB cmpge rC, rB, rA
cmplei rB, rA, IMMED cmplti rB, rA, (IMMED+1)
cmpleu rC, rA, rB cmpgeu rC, rB, rA
cmpleui rB, rA, IMMED cmpltui rB, rA, (IMMED+1)
mov rC, rA add rC, rA, r0
movhi rB, IMMED orhi rB, r0, IMMED
movi rB, IMMED addi, rB, r0, IMMED
movia rB, label orhi rB, r0, %hiadj(label)
addi, rB, r0, %lo(label)
movui rB, IMMED ori rB, r0, IMMED
nop add r0, r0, r0
subi rB, rA, IMMED addi rB, rA, (-IMMED)
Refer to the Application Binary Interface chapter of the Nios II Processor Reference Handbook for more
information about global pointers.
Related Information
• Application Binary Interface on page 7-1
• Application Binary Interface
8-4
Assembler Pseudo-Instructions
NII51017
2015.04.02
Altera Corporation
Instruction Set Reference
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