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Curs 04: Reprezentarea datelor în sistemele de calcul
- Suport curs
- Sivarama P. Dandamudi: Introduction to Assembly Language Programming
- Appendix A: Internal Data Representation: A.1, A.2, A.3, A.4.4, A.7, A.8, A.9
Demo-uri
git clone https://github.com/iocla/curs-03-demo.git
și apoi compilăm/asamblăm
cd curs-03-demo; make
The demo adds two bytes.
For signed/unsigned operations, watch flags C(arry) and O(verflow).
Presence of a flag means result is in the allowed interval.
Absence of a flag means the operation is within the allowed interval.
0x2 + 0x2
0xff + 1
0xff + 0xff
0xfe + 7
0x7f + 0x81 vs. 0x7f + 1
0x7f + 0x7f vs 0x7f + 0x80
Exercises for C and O - find a pair that activates:
- none
- only C
- only O
- both
