DSP INSTRUCTION SET AND OPCODES

DSP INSTRUCTION SET AND OPCODES


ALU FUNCTIONS				op=	000			MULT FUNCTIONS				op=	100
2-operand			func(4) = 0
										op	func	aca	ra	rb
		op	func	aca	acb			MULT		001	00100	xx	xx	xx	--
ADD	0	000	00000	xx	xx	----		MULTI		001	10100	xx	xx	NNNN
SUB	1	000	00001	xx	xx	----		SQR		001	00101	xx	xx	--	--
AND	2	000	00010	xx	xx	----		MAC		001	00000	xx	xx	xx	--
OR	3	000	00011	xx	xx	----
XOR	4	000	00100	xx	xx	----
CMP	5	000	00101	xx	xx	----
								SHIFT FUNCTIONS				op=	010
1-operand											sh.op(3)	= 0
immediate			func(4) = 1					1-operand	shift		func=	11111
										op	func	aca		sh.op.
		op	func	aca	#N			ASL		010	11111	xx	--	0000
ADDI		000	10000	xx	NNNNNN			ASR		010	11111	xx	--	0001
SUBI		000	10001	xx	NNNNNN			LSR		010	11111	xx	--	0010
ANDI		000	10010	xx	NNNNNN			ROL		010	11111	xx	--	0011
ORI		000	10011	xx	NNNNNN			ROR		010	11111	xx	--	0100
XORI		000	10100	xx	NNNNNN			RND		010	11111	xx	--	0101
								TNK		010	11111	xx	--	0110
1-operand
arithametic								shift to	mem		sh.op(3)	= 1
		op	func	aca	don't care					op	func	aca		sh.op.		disp
NOT	6	000	10110	xx	------			RNDA		010	-----	xx	--	1100		16
INC	7	000	10111	xx	------			TNKA		010	-----	xx	--	1010		16
DEC	8	000	11000	xx	------			LIMA		010	-----	xx	--	1000		16
CLR	9	000	11001	xx	------			RNDF		010	-----	xx	--	1101		16
PASS	F	000	11111	xx	------			TNKF		010	-----	xx	--	1011		16
NEG	A	000	11010	xx	------			LIMF		010	-----	xx	--	1001		16
ABS	B	000	11011	xx	------
								shift with	ALU
										op	func	aca		sh.op.
								ASL		010	ALU#	xx	--	0000
								ASR		010	ALU#	xx	--	0001
								LSR		010	ALU#	xx	--	0010
SPECIAL FUNCTIONS					op=	111		ROL		010	ALU#	xx	--	0011
								ROR		010	ALU#	xx	--	0100
0-operation								RND		010	ALU#	xx	--	0101
		op	func					TNK		010	ALU#	xx	--	0110
NOP		111	00000
STOP		111	11111					ALU com.	ALU#
SETC		111	10001					ADD	00000	0
CLRC		111	00001					SUB	00001	1
SETN		111	10010					AND	00010	2
CLRN		111	00010					OR	00011	3
SETZ		111	10100					XOR	00100	4
CLRZ		111	00100					NOT	00110	6
RETN		111	01111					INC	00111	7
								DEC	01000	8
								CLR	01001	9
BRANCH FUNCTIONS				op =011
								use like ASL 2,…
normal			func(43)	=00				act like ASL and AND
		op	func	don't care			disp
BR		011	00000	--------			16
BEQ		011	00001	--------			16
BNE		011	00010	--------			16
BLT		011	00011	--------			16
BGT		011	00100	--------			16

subroutine			func(43)	=01
		op	func	don't care			disp	LOAD FUNCTIONS				op =	100
CALL		011	01000	--------			16
										op	func	aca	ra	imm		disp
special			func(4)	=1				LD		100	10001	--	xx	----		16
		op	func	don't care			disp	LDI		100	00010	--	xx	NNNN
BBS		011	10000	--------			16	LDA		100	00100	xx	xx	----
BBC		011	10001	--------			16	LDD		100	01000	--	xx	rb	--
RPT		011	11111	--------			16



ALU FUNCTIONS				op=	000			MULT FUNCTIONS				op=	100
2-operand			func(4) = 0
										op	func	aca	ra	rb
		op	func	aca	acb			MULT		001	00100	xx	xx	xx	--
ADD	0	000	00000	xx	xx	----		MULTI		001	10100	xx	xx	NNNN
SUB	1	000	00001	xx	xx	----		SQR		001	00101	xx	xx	--	--
AND	2	000	00010	xx	xx	----		MAC		001	00000	xx	xx	xx	--
OR	3	000	00011	xx	xx	----
XOR	4	000	00100	xx	xx	----
CMP	5	000	00101	xx	xx	----
								SHIFT FUNCTIONS				op=	010
1-operand											sh.op(3)	= 0
immediate			func(4) = 1					1-operand	shift		func=	11111
										op	func	aca		sh.op.
		op	func	aca	#N			ASL		010	11111	xx	--	0000
ADDI		000	10000	xx	NNNNNN			ASR		010	11111	xx	--	0001
SUBI		000	10001	xx	NNNNNN			LSR		010	11111	xx	--	0010
ANDI		000	10010	xx	NNNNNN			ROL		010	11111	xx	--	0011
ORI		000	10011	xx	NNNNNN			ROR		010	11111	xx	--	0100
XORI		000	10100	xx	NNNNNN			RND		010	11111	xx	--	0101
								TNK		010	11111	xx	--	0110
1-operand
arithametic								shift to	mem		sh.op(3)	= 1
		op	func	aca	don't care					op	func	aca		sh.op.		disp
NOT	6	000	10110	xx	------			RNDA		010	-----	xx	--	1100		16
INC	7	000	10111	xx	------			TNKA		010	-----	xx	--	1010		16
DEC	8	000	11000	xx	------			LIMA		010	-----	xx	--	1000		16
CLR	9	000	11001	xx	------			RNDF		010	-----	xx	--	1101		16
PASS	F	000	11111	xx	------			TNKF		010	-----	xx	--	1011		16
NEG	A	000	11010	xx	------			LIMF		010	-----	xx	--	1001		16
ABS	B	000	11011	xx	------
								shift with	ALU
										op	func	aca		sh.op.
								ASL		010	ALU#	xx	--	0000
								ASR		010	ALU#	xx	--	0001
								LSR		010	ALU#	xx	--	0010
SPECIAL FUNCTIONS					op=	111		ROL		010	ALU#	xx	--	0011
								ROR		010	ALU#	xx	--	0100
0-operation								RND		010	ALU#	xx	--	0101
		op	func					TNK		010	ALU#	xx	--	0110
NOP		111	00000
STOP		111	11111					ALU com.	ALU#
SETC		111	10001					ADD	00000	0
CLRC		111	00001					SUB	00001	1
SETN		111	10010					AND	00010	2
CLRN		111	00010					OR	00011	3
SETZ		111	10100					XOR	00100	4
CLRZ		111	00100					NOT	00110	6
RETN		111	01111					INC	00111	7
								DEC	01000	8
								CLR	01001	9
BRANCH FUNCTIONS				op =011
								use like ASL 2,…
normal			func(43)	=00				act like ASL and AND
		op	func	don't care			disp
BR		011	00000	--------			16
BEQ		011	00001	--------			16
BNE		011	00010	--------			16
BLT		011	00011	--------			16
BGT		011	00100	--------			16

subroutine			func(43)	=01
		op	func	don't care			disp	LOAD FUNCTIONS				op =	100
CALL		011	01000	--------			16
										op	func	aca	ra	imm		disp
special			func(4)	=1				LD		100	10001	--	xx	----		16
		op	func	don't care			disp	LDI		100	00010	--	xx	NNNN
BBS		011	10000	--------			16	LDA		100	00100	xx	xx	----
BBC		011	10001	--------			16	LDD		100	01000	--	xx	rb	--
RPT		011	11111	--------			16

ALU FUNCTIONS				op=	000
2-operand			func(4) = 0

		op	func	aca	acb
ADD	0	000	00000	xx	xx	----
SUB	1	000	00001	xx	xx	----
AND	2	000	00010	xx	xx	----
OR	3	000	00011	xx	xx	----
XOR	4	000	00100	xx	xx	----
CMP	5	000	00101	xx	xx	----

1-operand
immediate			func(4) = 1

		op	func	aca	#N
ADDI		000	10000	xx	NNNNNN
SUBI		000	10001	xx	NNNNNN
ANDI		000	10010	xx	NNNNNN
ORI		000	10011	xx	NNNNNN
XORI		000	10100	xx	NNNNNN

1-operand
arithametic
		op	func	aca	don't care
NOT	6	000	10110	xx	------
INC	7	000	10111	xx	------
DEC	8	000	11000	xx	------
CLR	9	000	11001	xx	------
PASS	F	000	11111	xx	------
NEG	A	000	11010	xx	------
ABS	B	000	11011	xx	------