TMS320C3X INSTRUCTION SET
A summary of the TMS320C3x instruction set is shown below. The instructions can be separated into five groups: load and store; instructions that require two operands; instructions that require three operands; program control; and parallel instructions that save overhead on tasks such as loop counters.

LOAD AND STORE INSTRUCTIONS:

Instruction	Description	Instruction	Description
LDE	Load floating-point exponent	POP	Pop integer from stack
LDF	Load floating-point value	POPF	Pop floating-point value from stack
LDFcond	Load floating-point value conditionally	PUSH	Push integer on stack
LDI	Load integer	PUSHF	Push floating-point value on stack
LDIcond	Load integer conditionally	STF	Store floating-point value
LDM	Load floating-point mantissa	STI	Store integer
LDP	Load data page pointer

TWO-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
THREE-OPERAND INSTRUCTIONS:

Instruction	Description	Instruction	Description
ADDC3	Add with carry	MPYF3	Multiply floating-point values
ADDF3	Add floating-point values	MPYI3	Multiply integers
ADDI	Add integers	OR3	Bitwise-logical OR
AND3	Bitwise-logical AND	SUBB3	Subtract integers with borrow
ANDN3	Bitwise-logical AND with complement	SUBF3	Subtract floating-point values
ASH3	Arithmetic shift	SUBI3	Subtract integers
CMPF3	Compare floating-point values	TSTB3	Test bit fields
CMPI3	Compare integers	XOR3	Bitwise-exclusive OR
LSH3	Logical shift

PROGRAM CONTROL INSTRUCTIONS:

Instruction	Description	Instruction	Description
Bcond	Branch conditionally (standard)	IDLE	Idle until interrupt
BcondD	Branch conditionally (delayed)	NOP	No operation
BR	Branch unconditionally (standard)	RETIcond	Return from interrupt conditionally
BRD	Branch unconditionally (delayed)	RETScond	Return from subroutine conditionally
CALL	Call subroutine	RPTB	Repeat block of instructions
CALLIcond	Call subroutine conditionally	RPTS	Repeat single instruction
DBcond	Decrement and branch conditionally (standard)	SWI	Software interrupt
DBcondD	Decrement and branch conditionally (delayed)	TRAPcond	Trap conditionally
IACK	Interrupt acknowledge

PARALLEL INSTRUCTIONS:

Mnemonic	Description	Mnemonic	Description
ABSF  ||   STF	Absolute value of a floating-point number and store floating point value	NEGI  ||   STI	Negate integer and store integer
ABSI  ||   STI	Absolute value of an integer and store integer	NOT  ||   STI	Complement value and store integer
ADDF3  ||   STF	Add floating-point values and store floating-point value	OR3  ||   STI	Bitwise-logical OR value and store integer
ADDI3  ||   STI	Add integers and store integer	STF  ||   STF	Store floating-point values
AND3  ||   STI	Bitwise-logical AND and store integer	STI  ||   STI	Store integers
ASH3  ||   STI	Arithmetic shift and store integer	SUBF3  ||   STF	Subtract floating-point values and store floating-point value
FIX  ||   STI	Convert floating-point to integer and store integer	SUBI3  ||   STI	Subtract integer and store integer
FLOAT  ||   STF	Convert integer to floating-point value and store floating-point value	XOR3  ||   STI	Bitwise-exclusive OR values and store integer
LDF  ||   STF	Load floating-point value and store floating-point value	LDF  ||   LDF	Load floating-point values
LDI  ||   STI	Load integer and store integer	LDI  ||   LDI	Load integer
LSH3  ||   STI	Logical shift and store integer	MPYF3  ||   ADDF3	Multiply and add floating-point value
MPYF3  ||   STF	Multiply floating-point values and store floating-point value	MPYF3  ||   SUBF3	Multiply and subtract floating-point value
MPYI3  ||   STI	Multiply integer and store integer	MPYI3  ||   ADDI3	Multiply and add integer
NEGF  ||   STF	Negate floating-point value and store floating-point value	MPYI3  ||   SUBI3	Multiply and subtract integer