The table that follows lists the assembly language pseudo-ops for the Itanium(TM) architecture according to their opcodes. The table lists pseudo-ops with missing operands. The opcodes are listed alphabetically, with their operands, and the equivalent machine instructions. The table lists mnemonics converted to other mnemonics.
Opcode |
Instruction Description |
Operands |
Equivalent Machine Instruction |
|
add
|
Add immediate |
r1 =imm,r3 |
adds r1 =imm14,r3 addl r1 =imm22,r3 |
|
break |
Break |
imm21 |
break.b imm21 (B) break.i imm21 (I) break.m imm21 (M) break.f imm21 (F) |
|
chk.s |
Speculation check |
r2,target25 |
chk.s.i r2,target25(I) chk.s.m r2,target25(M) |
|
fabs
|
Floating-point absolute value |
f1 =f3 |
fmerge.s f1 =f0,f3 |
|
fadd.pc.sf
|
Floating-point add |
f1 =f3,f2 |
fma.pc.sf f1 =f3,f1,f2 |
|
fcvt.xuf
|
Convert integer to float unsigned |
f1 =f3 |
fma.pc.sf f1 =f3,f1,f0 |
|
fmpy.pc.sf
|
Floating-point multiply |
f1 =f3,f4 |
fma.pc.sf f1 =f3,f4,f0 |
|
fneg
|
Floating-point negate |
f1 =f3 |
fmerge.ns f1 =f3,f3 |
|
fnegabs
|
Floating-point negate absolute value |
f1 =f3 |
fmerge.ns f1 =f0,f3 |
|
fnorm.pc.sf
|
Floating-point normalize |
f1 =f3 |
fma.pc.sf f1 =f3,f1,f0 |
|
fsub.pc.sf
|
Floating-point subtract |
f1 =f3,f2 |
fms.pc.sf f1 =f3,f1,f2 |
|
ld8.mov |
ld8 that can be translated to mov. It is used to support link time rewriting of indirect addressing code sequences. In ELF format only. |
r2=[r3], Symbol+Addend |
ld8 r2=[r3] mov r2=r3 |
|
mov
|
Move to application register immediate |
ar3 =imm8 |
mov.i ar3 =imm8 (I) mov.m ar3 =imm8 (M) |
|
mov
|
Move to application register |
ar3 =r2 |
mov.i ar3 =r2 (I) mov.m ar3 =r2 (M) |
|
mov
|
Move floating-point register |
f1 =f3 |
fmerge.s f1 =f3,f3 |
|
mov
|
Move from application register |
r1 =ar3 |
mov.i r1 =ar3 (I) mov.m r1 =ar3 (M) |
|
mov |
Move immediate |
r1 =imm22 |
addl r1 =imm22,r0 |
|
mov
|
Move general register |
r1 =r2 |
adds r1 =0,r2 |
|
mov
|
Move to branch register |
b1 =r2 |
mov b1 =r2 |
|
nop |
No operation |
imm21 |
nop.b imm21 (B) nop.i imm21 (I) nop.m imm21 (M) nop.f imm21 (F) |
|
shl |
Shift left |
r1=r2,count6 |
dep.z
r1=r2,count6, |
|
shr |
Shift right signed |
r1=r3,count6 |
extr
r1=r3,count6, |
|
shr.u
|
Shift right unsigned |
r1=r3,count6 |
extr.u
r1=r3,count6, |
|
xma.lu
|
Fixed-point multiply low unsigned |
f1=f2,f3,f4,
|
xma.l f1 =f2,f3,f4 |