3 ms·
I believe this requires the RAM expansion unit
by nigerian1981 5y ago
I believe this requires the RAM expansion unit
- rasz 5y agowhich has DMA capability http://www.zimmers.net/anonftp/pub/cbm/documents/chipdata/programming.reu http://www.zimmers.net/anonftp/pub/cbm/documents/chipdata/pr... 1) Transfer a block of data from main memory to expansion memory 2) Transfer a block of data from expansion memory to main memory 3) Exchange a block of main memory with a block of expansion 4) Verify a block of main memory with a block of expansion memory copy is ~1MB/s compared to manual CPU speed of <120KB/s