COP413C datasheet(12/16 Pages) NSC

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COP413C Instruction Set (Continued)

TABLE III COP413C Instruction Set

(Continued)

Hex

Machine

Mnemonic

Operand

Code

Language Code

Data Flow

Skip Conditions

Description

(Binary)

TRANSFER OF CONTROL INSTRUCTIONS

JID

1111 1111

ROM (PC8 AM)

None

Jump Indirect (Note 2)

PC70

JMP

0110 000 a8

x PC

None

Jump

–

a70

–

a60

x PC60

None

Jump within Page

(pages 2 3 only)

(Note 1)

–

a50

x PC50

(all other pages)

JSRP

–

a50

PC a 1

x SA x SB None

Jump to Subroutine Page

(Note 2)

010

x PC86

x PC50

JSR

0110 100 a8

PC a 1

x SA x SB None

Jump to Subroutine

–

a70

x PC

RET

0100 1000

x SA x PC

None

Return from Subroutine

RETSK

0100 10011

x SA x PC

Always Skip on Return

Return from Subroutine

then Skip

HALT

0011 0011

None

Halt processor

0011 1000

MEMORY REFERENCE INSTRUCTIONS

CAMQ

0011 0011

x Q74

None

Copy A RAM to Q

0011 1100

RAM(B)

x Q30

CQMA

0011 0011

Q74

xRAM(B)

None

Copy Q to RAM A

0010 1100

Q30

00 r 0101

RAM(B)

x A

None

Load RAM into A

Br Z r

x Br

Exclusive-OR Br with r

LQID

1011 1111

ROM(PC8 AM)

x Q

None

Load Q Indirect

x SB

RMB

0100 1100

x RAM(B)0

None

Reset RAM Bit

145

0100 0101

x RAM(B)1

242

0100 0010

x RAM(B)2

343

0100 0011

x RAM(B)3

SMB

0100 1101

x RAM(B)0

None

Set RAM Bit

147

0100 0111

x RAM(B)1

246

0100 0110

x RAM(B)2

34B

0100 1011

x RAM(B)3

STII

0111

x RAM(B)

None

Store Memory Immediate

Bd a 1

x Bd

and Increment Bd

00 r 0110

RAM(B)

None

Exchange RAM with A

Br Z r

x Br

Exclusive-OR Br with r

XAD

315

0010 0011

RAM(315)

None

Exchange A with RAM

1011 1111

(315)

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