Table of Contents Previous topic Next topic
MICROPROCESSOR INSTRUCTION REFERENCE->TST s
TST s 'AND' accumulator and specific operand
A 'and' s
Flags
| S | Set if result -ve, else cleared |
| Z | Set if result zero, else cleared |
| H | Set always |
| P/V | Set if parity even, else cleared |
| N | Cleared always |
| C | Cleared always |
| s: | No of | M | T | usec @ |
| bytes | cycles | states | 2 MHz |
| r | 2 | 3 | 7 | 3.5 |
| n | 3 | 3 | 9 | 4.5 |
| (HL) | 2 | 4 | 10 | 5 |