8 Solved Questions on Binary and Decimal Numbers - Exam 1 | ECEN 3213, Exams of Electrical and Electronics Engineering

Download 8 Solved Questions on Binary and Decimal Numbers - Exam 1 | ECEN 3213 and more Exams Electrical and Electronics Engineering in PDF only on Docsity! @ ECEN 6253 Advanced Digital Computer Design @ ECEN 3213 Spring ‘04 Exam 1 WRITE YOUR NAME HERE Ans wer All questions must be answered on test paper! Open Beok, Open Notes 1, (50 pts) Write 6811 assembly code for the following pseudo-code. If reset occurs, the program should start at “start”. start: XX = 100; { loop: if (XX = 0) XX = 100; i else | XX=XX-1; , ; goto loop; Unagal Lda XX tle org ooor Sua # | | xX ds | Spa for XX Sta xX RN Cone org FDooe - bra loop “ee Start ibe Pivd XX 2/0 ara $ FEF E sta XX dw stort oop Lag XX ; bre unegarl Tf &=¥) [ha #lve Sta XX mate bra dow ECEN 3213 Spring ‘04 Exam 1 February 25, 2004 page 1 of3 @ ECEN @€253 Advanced Digital Computer Design & 2. (7 pts) Convert the given numbers from unsigned binary to decimal. alli= | p.o1olio= 2 3. (7 pts) Convert the given numbers from decimal to unsigned binary. a37= {oo {p | b.25= [loo | 4. (7 pts) Convert the given numbers from &-bit signed binary to signed decimal. aoololilo= 32+ F44+2 2 4h b.1ll0= - Bwvieeyo = -fétz2\o—1¢ 5. (7 pts) Convert the given numbers from signed decimal to 8-bit signed binary. a37= oolooro | &37= tlollo iy (25 comp { para) 6. (7 pts) Convert the given numbers from binary to hexadecimal. aldll= §& b.1o1l0011= BS 7. (7 pts) Convert the given numbers from hexadecimal to binary. aAl= {Olu 000 | bTFAL= OIL ETI OLO ave | % ECEN 3213 Spring ‘04 Exam 1 February 25, 2004 page 2 of 3