Keep y on stack
This commit is contained in:
parent
ab45e0618b
commit
2ea1a1a000
|
@ -248,26 +248,26 @@
|
|||
,&color STR
|
||||
,&y2 STR2
|
||||
,&x2 STR2
|
||||
,&y1 STR2
|
||||
STH2
|
||||
,&x1 STR2
|
||||
,&x2 LDR2 ,&x1 LDR2 SUB2 abs2 ,&dx STR2
|
||||
#0000 ,&y2 LDR2 ,&y1 LDR2 SUB2 abs2 SUB2 ,&dy STR2
|
||||
#0000 ,&y2 LDR2 STH2kr SUB2 abs2 SUB2 ,&dy STR2
|
||||
#ffff [ LIT2 00 _&x1 ] LDR2 ,&x2 LDR2 lts2 DUP2 ADD2 ADD2 ,&sx STR2
|
||||
#ffff [ LIT2 00 _&y1 ] LDR2 ,&y2 LDR2 lts2 DUP2 ADD2 ADD2 ,&sy STR2
|
||||
#ffff #00 STH2kr ,&y2 LDR2 lts2 DUP2 ADD2 ADD2 ,&sy STR2
|
||||
[ LIT2 &dx $2 ] [ LIT2 &dy $2 ] ADD2
|
||||
&>while ( -- )
|
||||
( draw ) ,&x1 LDR2 ,&y1 LDR2 [ LIT &color $1 ] <set-pixel>
|
||||
( draw ) ,&x1 LDR2 STH2kr [ LIT &color $1 ] <set-pixel>
|
||||
( x ) [ LIT2 &x1 $2 ] [ LIT2 &x2 $2 ] EQU2
|
||||
( y ) [ LIT2 &y1 $2 ] [ LIT2 &y2 $2 ] EQU2 AND ?&end
|
||||
( y ) STH2kr [ LIT2 &y2 $2 ] EQU2 AND ?&end
|
||||
DUP2k ADD2 DUP2
|
||||
( y ) ,&dy LDR2 lts2 ?{
|
||||
( e+dy ) SWP2 ,&dy LDR2 ADD2 SWP2
|
||||
( x1+sx ) ,&x1 LDR2 [ LIT2 &sx $2 ] ADD2 ,&x1 STR2 }
|
||||
( x ) ,&dx LDR2 gts2 ?{
|
||||
( e+dx ) ,&dx LDR2 ADD2
|
||||
( y1+sy ) ,&y1 LDR2 [ LIT2 &sy $2 ] ADD2 ,&y1 STR2 }
|
||||
( y1+sy ) [ LIT2r &sy $2 ] ADD2r }
|
||||
!&>while
|
||||
&end POP2 JMP2r
|
||||
&end POP2 POP2r JMP2r
|
||||
|
||||
@snap ( x1* x2* -- x* )
|
||||
SUB2k abs2 #0008 LTH2 ?{ NIP2 JMP2r }
|
||||
|
|
Loading…
Reference in New Issue