Homework SourseFIND THE VALUES OF CONDITION FLAG N Z V AND C IN THE CCR REG
FIND THE VALUES OF CONDITION FLAG N, Z, V AND C IN THE CCR REGISTER AFTER THE EXECUTION OF EACH OF THE FOLLOWING INSTRUCTIONS, GIVE THAT ACCUMULATOR (A) HAS VALUE $50 AND THE CONDITION FLAG BEFORE THE EXECUTION ARE N=0, Z=1, V=0, C=1.
a. SUBA #40
b. TESTA
c. ADDA #$50
d. LSRA
e. ROLA f.LSLA
Solution
Content of A
(50$=80)
| N(0) | Z(1) | V(0) | C(1) | Content of A (50$=80) | |
| SUBA #40 | 0 | 0 | 0 | 0 | 40 |
| TESTA | 0 | 0 | 0 | 0 | 40 |
| ADDA #$50 | 0 | 0 | 0 | 0 | 120=01111000 |
| LSRA | 0 | 0 | 0 | 0 | 00111100 0 |
