IPR-NIOS Altera, IPR-NIOS Datasheet - Page 283
IPR-NIOS
Manufacturer Part Number
IPR-NIOS
Description
IP NIOS II MEGACORE RENEW
Manufacturer
Altera
Type
MegaCorer
Datasheet
1.IP-NIOS.pdf
(294 pages)
Specifications of IPR-NIOS
License
Renewal License
Lead Free Status / RoHS Status
Not applicable / Not applicable
- Current page: 283 of 294
- Download datasheet (3Mb)
Chapter 8: Instruction Set Reference
Instruction Set Reference
subi
December 2010 Altera Corporation
Operation:
Assembler Syntax:
Example:
Description:
Usage:
Pseudo-instruction:
rB ← rA – σ (IMMED)
subi rB, rA, IMMED
subi r8, r8, 4
Sign-extends the immediate value IMMED to 32 bits, subtracts it from the value of rA and then
stores the result in rB.
The maximum allowed value of IMMED is 32768. The minimum allowed value is
–32767.
subi is implemented as addi rB, rA, -IMMED
Nios II Processor Reference Handbook
subtract immediate
8–97
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