diff options
| -rw-r--r-- | dla.s | 24 |
1 files changed, 10 insertions, 14 deletions
@@ -568,27 +568,23 @@ dontplot: slow_x: ; (-1,0) ldx cursor_x - dex - ldy xoffsets,x - lda xmasks,x + ldy xoffsets-1,x + lda xmasks-1,x and (pixptr),y bne stick ; (1,0) - inx - inx - ldy xoffsets,x - lda xmasks,x + ldy xoffsets+1,x + lda xmasks+1,x and (pixptr),y bne stick check_y: ; (0,-1) - ldx cursor_y ;3 - dex ;2 - lda lineaddrs_l,x ;5 - sta pixptr ;3 - lda lineaddrs_h,x ;5 - sta pixptr+1 ;3 - ;=21 + ldx cursor_y ;3 + lda lineaddrs_l-1,x ;5 + sta pixptr ;3 + lda lineaddrs_h-1,x ;5 + sta pixptr+1 ;3 + ;=19 ldx cursor_x ldy xoffsets,x lda xmasks,x |