Texas Instruments TMS320C67X/C67X+ DSP manual Mpyhslu, Multiply Signed 16 MSB y Unsigned 16 LSB

MPYHSLU Multiply Signed 16 MSB x Unsigned 16 LSB

MPYHSLU	Multiply Signed 16 MSB y Unsigned 16 LSB
Syntax		MPYHSLU (.unit) src1, src2, dst
		.unit = .M1 or .M2
Compatibility		C62x, C64x, C67x, and C67x+ CPU

Opcode

31 29 28 27 23 22 18 17 13 12 11 7 6 5 4 3 2 1 0

creg

z

dst

src2

src1

x

0 1 0 1 1 0

0 0 0 0 s p

3 155511 1

Opcode map field used...	For operand type...	Unit
src1	smsb16	.M1, .M2
src2	xulsb16
dst	sint

Description

Execution

Pipeline

The signed operand src1 is multiplied by the unsigned operand src2. The result is placed in dst. The S is needed in the mnemonic to specify a signed operand when both signed and unsigned operands are used.

if (cond)	msb16(src1) ⋅ lsb16(src2) → dst
else nop

Pipeline

StageE1 E2

Read src1, src2

Writtendst

Unit in use .M

Instruction Type	Multiply (16 ⋅ 16)
Delay Slots	1
See Also	MPYHL, MPYHLU, MPYHULS

3-152 Instruction Set SPRU733