| ??? 08/13/07 11:52 Read: times |
#143157 - no intelligence Responding to: ???'s previous message |
your reply is :
Have you looked carefully at the instruction set? A careful inspection of this will reveal some patterns. For example: the ADD instruction: high nibble is 0010 low nibble describes the address mode. If low nibble is 0100 next byte is immediate data. the ANL instruction: high nibble is 0101 low nibble describes the address mode. If low nibble is 0100 next byte is immediate data. my doubt is: 1.according to my knowledge the microcontroller is not having intelligence .if this is to be a case then how microcontroller knows the last nibble contain 0100 in the bit position then wait for next machine cycle to collect the data 2.then if you give 0010 in higher nibble it address the adder, if 0101 the it is a simple "and" gate.then this is to be the case,feed this last nibble to the decoder then the decoder select one function. if my point of view to the reply is correct or not |
| Topic | Author | Date |
| decoding | 01/01/70 00:00 | |
| It's implicit | 01/01/70 00:00 | |
| design | 01/01/70 00:00 | |
| A little ambitious? | 01/01/70 00:00 | |
| First stop - instruction set | 01/01/70 00:00 | |
| no intelligence | 01/01/70 00:00 | |
| Back to basics! | 01/01/70 00:00 | |
| Instruction decoding | 01/01/70 00:00 | |
| decoder unit | 01/01/70 00:00 | |
| State Machine | 01/01/70 00:00 | |
| more detail | 01/01/70 00:00 | |
| IF you've learned the "basics" of FPGA design ... | 01/01/70 00:00 | |
| Decoding | 01/01/70 00:00 | |
| in a traditionally anthropomorphic metaphor? | 01/01/70 00:00 | |
| My favourite anthropomorphic metaphor... | 01/01/70 00:00 | |
| My favorite ... | 01/01/70 00:00 | |
| Blither | 01/01/70 00:00 | |
| re: blither | 01/01/70 00:00 | |
| I always think that a blithering idiot.. | 01/01/70 00:00 | |
| anthropomorphic metaphor | 01/01/70 00:00 | |
| The same way ... | 01/01/70 00:00 | |
| Dictionary | 01/01/70 00:00 | |
If anyone is still listening... | 01/01/70 00:00 |