參數資料
型號: LR4500
廠商: LSI Corporation
英文描述: Superscalar Microprocessor(超標量微處理器)
中文描述: 超標量微處理器(超標量微處理器)
文件頁數: 40/172頁
文件大小: 1142K
代理商: LR4500
4-4
Instruction Set
Table 4.3
describes the ALU immediate instructions.
Table 4.3 ALU Immediate Instructions
Instruction
Format and Description
Add Immediate
ADDI rt, rs, immediate
Add 16-bit, sign extended
immediate
to register
rs
and place 32-bit result
in register
rt
. Trap on two’s complement overflow.
Add Immediate
Unsigned
ADDIU rt, rs, immediate
Add 16-bit, sign extended
immediate
to register
rs
and place 32-bit result
in register
rt
. Do not trap on overflow.
AND Immediate
ANDI rt, rs, immediate
Zero extend 16-bit
immediate
, AND with contents of register
rs
, and place
result in register
rt
.
Exclusive OR Immediate
XORI rt, rs, immediate
Zero extend 16-bit
immediate
, exclusive OR with contents of register
rs
,
and place result in register
rt
.
Load Upper Immediate
LUI rt, immediate
Shift 16-bit
immediate
left 16 bits. Set least-significant 16 bits of word to
zeros. Store result in register
rt
.
OR Immediate
ORI rt, rs, immediate
Zero extend 16-bit
immediate
, OR with contents of register
rs
, and place
result in register
rt
.
Set on Less than
Immediate
SLTI rt, rs, immediate
Compare 16-bit, sign extended
immediate
with register
rs
as signed
32-bit integers. Result = 1 if
rs
is less than immediate; otherwise
result = 0. Place result in register
rt
.
Set on Less than
Immediate Unsigned
SLTIU rt, rs, immediate
Compare 16-bit, sign extended
immediate
with register
rs
as unsigned
32-bit integers. Result = 1 if
rs
is less than
immediate
; otherwise
result = 0. Place result in register
rt
.
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