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# design
There is enough RAM for:
- 1541 disk cache (3 banks, 256 pages each) and RAM disk (4 banks, 256 pages each), needs $0d80 bytes for disk driver swap space (end of cache bank 3 is enoug…
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There may already be a way to do this, but I'm looking for a way to define a segment to align everything towards the end of the memory space instead of from the beginning.
I define these two segmen…
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Recently I got some requests about problems with upgrading the firmware using an USB-Blaster. Instead of using e-mails I would like to collect the relevant information into this thread. Maybe this cou…
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[](https://www.bountysource.com/issues/60853960-lagless-vsync-support-add-beam-racing-to-retroarch-now-1082-bountysource)
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I'd like to do my rendering and processing just before each Vsync, to reduce latency. So if a frame takes 0.1s, then my application will wait for 0.08s after the last Vsync, then render and process ev…
ad8e updated
11 months ago
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I just discovered a new upcoming VIC-II accessory by the name of 'BeamRacer'.
https://beamracer.net/site/
It appears to be a co-processor / memory module that sits in-between the VIC-II and the re…
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When attaching disk image with `--drive8-file diskimage.d64` an exception is thrown (even thought the image seems to get attached correctly):
```
java.lang.NullPointerException
at ucesoft.cbm.CBMC…
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GFX routines should work faster with BeamRacer. Replacing rectangle/hline/vline/point/putstring routines like VDC versions should be enough
- [x] whole screen moved to bank 7, last 8+8KB (back/fron…
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It's possible to trigger this exception with too large value of Bitmap Sequencer padding. If you take https://github.com/madhackerslab/beamracer-examples/blob/master/asm/demo_seq.s and change the line…
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https://github.com/ytmytm/geos/blob/624b12301b37ac312aa108f355e8ed1be728e2d7/kernal/dlgbox/dlgbox1d.s#L91
because of high-nibble (6th bit in particular) of $d02e (`mob7clr` == `mob1clr+7`) set to 1…