Users Guide: MAXQ8913 Supplement User guide

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MAXQ Family User’s Guide:

MAXQ8913 Supplement

18-1

ADDENDUM TO SECTION 18: MAXQ FAMILY INSTRUCTION SET

SUMMARY

Refer to the MAXQ Family User’s Guide. Table 18-1 from the MAXQ Family User’s Guide is reproduced here.

Table 18-1. Instruction Set Summary

MNEMONIC DESCRIPTION

16-BIT INSTRUCTION

WORD

STATUS

BITS

AFFECTED

INC/DEC

NOTES

LOGICAL OPERATIONS

AND src

Acc ← Acc AND src

f001 1010 ssss ssss S, Z Y 1

OR src

Acc ← Acc OR src

f010 1010 ssss ssss S, Z Y 1

XOR src

Acc ← Acc XOR src

f011 1010 ssss ssss S, Z Y 1

CPL

Acc ← ~Acc

1000 1010 0001 1010 S, Z Y

NEG

Acc ← ~Acc + 1

1000 1010 1001 1010 S, Z Y

SLA Shift Acc left arithmetically 1000 1010 0010 1010 C, S, Z Y

SLA2 Shift Acc left arithmetically twice 1000 1010 0011 1010 C, S, Z Y

SLA4 Shift Acc left arithmetically four times 1000 1010 0110 1010 C, S, Z Y

RL Rotate Acc left (w/o C) 1000 1010 0100 1010 S Y

RLC Rotate Acc left (through C) 1000 1010 0101 1010 C, S, Z Y

SRA Shift Acc right arithmetically 1000 1010 1111 1010 C, Z Y

SRA2 Shift Acc right arithmetically twice 1000 1010 1110 1010 C, Z Y

SRA4 Shift Acc right arithmetically four times 1000 1010 1011 1010 C, Z Y

Shift Acc right (0 → msbit)

1000 1010 1010 1010 C, S, Z Y

RR Rotate Acc right (w/o C) 1000 1010 1100 1010 S Y

RRC Rotate Acc right (though C) 1000 1010 1101 1010 C, S, Z Y

BIT OPERATIONS

MOVE C, Acc.

C ← Acc.

1110 1010 bbbb 1010 C

MOVE C, #0

C ← 0

1101 1010 0000 1010 C

MOVE C, #1

C ← 1

1101 1010 0001 1010 C

CPL C

C ← ~C

1101 1010 0010 1010 C

MOVE Acc., C

Acc. ← C

1111 1010 bbbb 1010 S, Z

AND Acc.

C ← C AND Acc.

1001 1010 bbbb 1010 C

OR Acc.

C ← C OR Acc.

1010 1010 bbbb 1010 C

XOR Acc.

C ← C XOR Acc.

1011 1010 bbbb 1010 C

MOVE dst., #1

dst. ← 1

1ddd dddd 1bbb 0111 C, S, E, Z 2

MOVE dst., #0

dst. ← 0

1ddd dddd 0bbb 0111 C, S, E, Z 2

MOVE C, src.

C ← src.

fbbb 0111 ssss ssss C

MATH

ADD src

Acc ← Acc + src

f100 1010 ssss ssss C, S, Z, OV Y 1

ADDC src

Acc ← Acc + (src + C)

f110 1010 ssss ssss C, S, Z, OV Y 1

SUB src

Acc ← Acc – src

f101 1010 ssss ssss C, S, Z, OV Y 1

SUBB src

Acc ← Acc – (src + C)

f111 1010 ssss ssss C, S, Z, OV Y 1

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