Posted By
MMS
on 2016-12-27
14:05:22
 |  Re: PC RS232 Mouse project for Plus/4 User port_a cheap and working one :-)
Maybe the resident driver shoould store the position for the GFX mode and the character mode independently, as in assembly it takes only a 3 ROR commands do divide by 8 to get the position in character mode. (omg, we did not speak about multicolor and hire mode differences...)
XHires (2 bytes): 0 - 319
YHires (1 byte): 0 - 200
XChar (1 byte): 0 - 39
YChar (1 byte): 0 - 24
Maybe we try to reinvent the wheel now, but there could be available mouse drivers for C64? Because they had the RS232 cartridge. Just asking.
OK, update:
at least we have a mouse driver for the SID+1351 mouse :-)
http://www.creators.no/dokuwiki/doku.php?id=ctr_mouse_driver
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