micro@imada.dk (Claus Pedersen) (07/10/90)
Hi; Does anyone know why the STe hardware scroll, won't work in monocrome mode? -or even better how to fix it (software!!!) :-) The problem is that this simple program don't work : vbl: movem.l d0-d1, -(a7) move #LineLen - N_Planes, D1 move Offset, d0 addq #1, d0 and #%1111, d0 move d0, Offset bne no_fng addq #N_Planes, D1 no_fng: move d1, LINEWID move d0, HSCROLL movem.l (a7)+, d0-d1 rte it's installed as the only program on the vbl, and all other interupts is disabled... N_Planes is 1 for mono, and 4 for Low res... The program is shortned a bit for the sake of readability (it won't scroll more than 15 pixels). But it ilustrates the point: the screen moves to the left (physical) when HSCROLL becomes 0 (i think it's HSCROLL that triggers the jump). PS it works fine in low res and the scroll in mono works, if HSCROLL don't become 0 (which means that LINEWID is constant LineLen - N_Planes). - Klaus (micro@imada.dk)