| ??? 09/28/05 07:55 Read: times |
#101643 - MOVX is the key Responding to: ???'s previous message |
It's the fact that it's accessed via MOVX that distinguishes it from the other address spaces.
The origins of the 'X' are really only of historical interest... So, the complete set is: DATA - Directly-accessible (addresses 00-7F) with MOV IDATA - Indirectly-accessible with MOV @Rn XDATA - Indirectly-accessible with MOVX CODE - Indirectly-accessible with MOVC Notes IDATA is a superset DATA; PDATA is a 256-byte "page" of XDATA CODE is also accessed by all instruction fetches! |
| Topic | Author | Date |
| glossary | 01/01/70 00:00 | |
| Dunno, but... | 01/01/70 00:00 | |
| glossary | 01/01/70 00:00 | |
| "external" | 01/01/70 00:00 | |
| explain | 01/01/70 00:00 | |
| indirect? | 01/01/70 00:00 | |
| Flash | 01/01/70 00:00 | |
| XRAM | 01/01/70 00:00 | |
| X? | 01/01/70 00:00 | |
| XRAM | 01/01/70 00:00 | |
| MOVX is the key | 01/01/70 00:00 | |
| access | 01/01/70 00:00 | |
| Sort of | 01/01/70 00:00 | |
| wikish | 01/01/70 00:00 | |
| memory types and datatypes | 01/01/70 00:00 | |
| precise | 01/01/70 00:00 | |
| maybe like this | 01/01/70 00:00 | |
| XDATA | 01/01/70 00:00 | |
| re: XDATA | 01/01/70 00:00 | |
| update | 01/01/70 00:00 | |
| why? does anyone ever look there | 01/01/70 00:00 | |
| We don't understand each other | 01/01/70 00:00 | |
| My understanding of the wiki was that it | 01/01/70 00:00 | |
| wicked | 01/01/70 00:00 | |
| re chip directories | 01/01/70 00:00 | |
| Hang on | 01/01/70 00:00 | |
| sorry | 01/01/70 00:00 | |
| Nope | 01/01/70 00:00 | |
Congrats Steve. | 01/01/70 00:00 | |
| stack =? IDATA | 01/01/70 00:00 | |
| PDATA??? | 01/01/70 00:00 | |
| PDATA | 01/01/70 00:00 | |
| That's the crux | 01/01/70 00:00 | |
| internal external | 01/01/70 00:00 | |
| Is there is difference in... | 01/01/70 00:00 | |
| external vs internal XRAM | 01/01/70 00:00 | |
| or other sfr | 01/01/70 00:00 | |
| ERAM | 01/01/70 00:00 | |
| Wiki Wiki | 01/01/70 00:00 | |
| glossary on wiki | 01/01/70 00:00 |