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Forums > C64 Coding > vsp versus linecrunching
2008-02-21 19:25
Testa
Account closed

Registered: Oct 2004
Posts: 197
vsp versus linecrunching

hello there,

can somebody explain me the technical diffirence between vsp and linecrunching, i can swing/scroll a piccy from left to right by modify $d011 , i always thought that this was called a linecruncher, now somebody thold me that this trick is called vsp and not linecrunching, now i am confused about this....

mcd
 
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2008-02-24 18:33
Testa
Account closed

Registered: Oct 2004
Posts: 197
ok boys things are getting clear now... i call the effects vsp and hsp.. i am wondering how hsp is done so the next days i am bussy trying to figure it out... i want to try hsp with open sideborders for my x y sideborder scroll..
thanks a lot....
2008-02-24 18:44
JackAsser

Registered: Jun 2002
Posts: 2014
Quote: ok boys things are getting clear now... i call the effects vsp and hsp.. i am wondering how hsp is done so the next days i am bussy trying to figure it out... i want to try hsp with open sideborders for my x y sideborder scroll..
thanks a lot....


Most active coders calls it line crunch (vertically) and VSP (horizontally) and the combination of the AGSP, and so should you. Sometimes you read DMA-delay for VSP aswell since that term is quite accurate on what's going on internally in the VIC-chip.
2008-02-24 18:55
Testa
Account closed

Registered: Oct 2004
Posts: 197
why not vsp for vertical screen position and hsp for horizontal screen position... ?? but you are right. i will remember it in the right way...... bye
2008-02-25 13:17
Graham
Account closed

Registered: Dec 2002
Posts: 990
Quote: why not vsp for vertical screen position and hsp for horizontal screen position... ?? but you are right. i will remember it in the right way...... bye

Because VSP meant "variable screen position" from day #1: VSP&IK+
2008-02-25 19:43
Danzig

Registered: Jun 2002
Posts: 440
john, shut up and upload the oxy-releases ;)
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