HOMEWORK (4) 1) – Find the contents of register R20 after each of the following codes executed. Also, indicate the state of the Z flag. (a)LDI R20, 89 (b) LDI R20, OxC5 LDI R21, S76 LDI R21, Ox12 AND R20, R21 OR R20, R21 (c) LDI R20, S95 LDI R21, SAA EOR R20, R21 (d) LDI R20, 0 LDI R21, $99 LDI R22, SFF OR R20, R21 EOR R20, R22 COM R20

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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HOMEWORK (4)
1) - Find the contents of register R20 after each of the following codes
executed. Also, indicate the state of the Z flag.
(a) LDI R20, $89
LDI R21, $76
(b) LDI R20, 0×C5
LDI R21, Ox12
OR R20, R21
AND R20, R21
(c) LDI R20, $95
(d) LDI R20, 0
LDI R21, $99
LDI R22, $FF
OR R20, R21
LDI R21, SAA
EOR R20, R21
EOR R20, R22
COM R20
Transcribed Image Text:HOMEWORK (4) 1) - Find the contents of register R20 after each of the following codes executed. Also, indicate the state of the Z flag. (a) LDI R20, $89 LDI R21, $76 (b) LDI R20, 0×C5 LDI R21, Ox12 OR R20, R21 AND R20, R21 (c) LDI R20, $95 (d) LDI R20, 0 LDI R21, $99 LDI R22, $FF OR R20, R21 LDI R21, SAA EOR R20, R21 EOR R20, R22 COM R20
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