Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Manuel d'utilisateur télécharger pdf (Page 139)

7 DETAILS OF INSTRUCTIONS

S1C33 FAMILY C33 PE CORE MANUAL

EPSON

131

mltu.w %rd, %rs

Function

Unsigned 32-bit × 32-bit multiplication

Standard) {ahr, alr}

← rd × rs

Extension 1) Unusable

Extension 2) Unusable

Code

15 12 11 8 7 4 3 0

1 0 1 0 1 1 1 0

r s r d

0xAE__

Flag

IE C V Z N

– – – – –

Mode

Src: Register direct %rs = %r0 to %r15

Dst: Register direct

%rd = %r0 to %r15

CLK

Seven cycles

Description

The content of the rd register and the content of the rs register are multiplied together without signs,

and the 64-bit product resulting from the operation is loaded into the AHR and ALR register pair.

Example

mltu.w %r0,%r1 ; {ahr,alr} ← r0 × r1 unsigned multiplication

1 2 ... 134 135 136 137 138 139 140 141 142 143 144 ... 180 181

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Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Manuel d'utilisateur Page 139