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cc65/libsrc/tgi/tgi_line.s
uz e12bd13e16 Added clipping for lines.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4452 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-11-06 15:26:46 +00:00

26 lines
586 B
ArmAsm

;
; Ullrich von Bassewitz, 21.06.2002
;
; void __fastcall__ tgi_line (int x1, int y1, int x2, int y2);
; /* Draw a line in the current drawing color */
.include "tgi-kernel.inc"
.import popax
.proc _tgi_line
jsr tgi_linepop ; Pop/store Y2/X2
jsr popax ; Y1
sta tgi_clip_y1
stx tgi_clip_y1+1
jsr popax ; X1
sta tgi_clip_x1
stx tgi_clip_x1+1
jmp tgi_clippedline ; Call the line clipper
.endproc