sp25-cs252 cs252
The LC-3 ISA The LC-3 ISA
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A.1 Overview
A.2 The Instruction Set
ADD
Assembler Formats
Encodings
Operation
Description
Examples
AND
Bit-wise Logical AND
Assembler Formats
Encodings
Operation
Description
Examples
BR
Conditional Branch
Assembler Formats
Encoding
Operation
Description
Examples
JMP
RET
Assembler Formats
Encoding
Operation
Description
Examples
Note
JSR
JSRR
Jump to Subroutine
Assembler Formats
Encoding
Operation
Description
Examples
LD
Encoding
Operation
Description
Example
LDI
Operation
Description
Example
LDR
Load Base+offset
Assembler Format
Encoding
Operation
Description
Example
LEA
Load Effective Address
NOT
Bit-Wise Complement
RET
Return from Subroutine
RTI
Return from Trap or Interrupt
Assembler Format
Description
Example
Note
ST
Encoding
Operation
Description
Example
STI
Store Indirect
Encoding
Operation
Description
Example
STR
Store Base+offset
Assembler Format
Encoding
Operation
Description
Example
TRAP
System Call
Encoding
Operation
Description
Example
Note:
Assembler Format
Unused Opcode
Encoding
Operation
Description
Note:
A.3 Interrupt and Exception Processing
A.3.1 Interrupts
A.3.2 Exceptions
Source