Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Uživatelský manuál stáhnout pdf (Strana 69)

7 DETAILS OF INSTRUCTIONS

S1C33 FAMILY C33 PE CORE MANUAL

EPSON

adc %rd, %rs

Function

Addition with carry

Standard) rd

← rd + rs + C

Extension 1) Unusable

Extension 2) Unusable

Code

15 12 11 8 7 4 3 0

1 0 1 1 1 0 0 0

r s r d

0xB8__

Flag

IE C V Z N

–

↔ ↔ ↔ ↔

Mode

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

Dst: Register direct

%rd = %r0 to %r15

CLK

One cycle

Description

(1) Standard

adc

%rd,%rs ; rd ← rd + rs + C

The content of the rs register and C (carry) flag are added to the rd register.

(2) Delayed instruction

This instruction may be executed as a delayed instruction by writing it directly after a branch

instruction with the “d” bit.

Example

(1) adc %r0,%r1 ; r0 = r0 + r1 + C

(2) Addition of 64-bit data

data 1 = {r2, r1}, data2 = {r4, r3}, result = {r2, r1}

add %r1,%r3 ; Addition of the low-order word

adc %r2,%r4 ; Addition of the high-order word

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 180 181

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Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Uživatelský manuál Strana 69