Elan eSL Series, User Manual

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Chapter 2
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Architecture eSL/eSLS Series (+ eSLZ000) User’s Manual
2.5.1 Logic and Mathematic Instructions
The eSL Series has a full set of 6-bit (1 word) and 16-bit (2 words) logic and
mathematic instructions.
"1" #16 DBUS DBUS
ALU
General
Purpose
Registers Rd
Rs
Rt
W D
SC1
3
3
3
SC2
16 16
ALU OP
16
Status
Register
Negate
Figure 2.14 The ALU unit.
Logic and Mathematic Instruction Definitions
Mnemonic Description Operand
ADD Addition without carry Rn; [Rn]; #6imm; #16imm
ADC Add with Carry Rn; [Rn]; #6imm; #16imm
SUB Subtraction without borrow Rn; [Rn]; #6imm; #16imm
SUBB Subtraction with borrow Rn; [Rn]; #6imm; #16imm
AND Logical AND Rn; [Rn]; #6imm; #16imm
OR Logical OR Rn; [Rn]; #6imm; #16imm
XOR Logical exclusive OR Rn; [Rn]; #6imm; #16imm
CMP Compare Rn
NEG 2’s complement Rn
COM 1’s complement Rn