Computer Hardware User's Guide

Instruction Set
13-3 Assembly Language Instructions
13.1.2 2-Operand Instructions
The ’C3x supports 35 2-operand arithmetic and logical instructions. The two
operands are the source and destination. The source operand can be a memory
word, a register, or a part of the instruction word. The destination operand is
always a register.
As shown in Table 13–2, these instructions provide integer, floating-point or
logical operations, and multiprecision arithmetic.
Table 13–2. 2-Operand Instructions
Instruction Description Instruction Description
ABSF Absolute value of a floating-
point number
NORM Normalize floating-point value
ABSI Absolute value of an integer NOT Bitwise-logical complement
ADDC
†
Add integers with carry OR
†
Bitwise-logical OR
ADDF
†
Add floating-point values RND Round floating-point value
ADDI
†
Add integers ROL Rotate left
AND
†
Bitwise-logical AND ROLC Rotate left through carry
ANDN
†
Bitwise-logical AND with
complement
ROR Rotate right
ASH
†
Arithmetic shift RORC Rotate right through carry
CMPF
†
Compare floating-point values SUBB
†
Subtract integers with borrow
CMPI
†
Compare integers SUBC Subtract integers conditionally
FIX Convert floating-point value to
integer
SUBF
†
Subtract floating-point values
FLOAT Convert integer to floating-point
value
SUBI
†
Subtract integer
LSH
†
Logical shift SUBRB Subtract reverse integer with
borrow
MPYF
†
Multiply floating-point values SUBRF Subtract reverse floating-point
value
MPYI
†
Multiply integers SUBRI Subtract reverse integer
NEGB Negate integer with borrow TSTB
†
Test bit fields
NEGF Negate floating-point value XOR
†
Bitwise-exclusive OR
NEGI
Negate integer
†
2- and 3-operand versions