Working on the TGI library

git-svn-id: svn://svn.cc65.org/cc65/trunk@1323 b7a2c559-68d2-44c3-8de9-860c34a00d81
2002-06-22 21:40:24 +00:00
parent 897c1d8523
commit bf944755dd
16 changed files with 202 additions and 50 deletions
--- a/libsrc/tgi/tgi_linepop.s
+++ b/libsrc/tgi/tgi_linepop.s
@@ -0,0 +1,24 @@
+;
+; Ullrich von Bassewitz, 22.06.2002
+;
+; Helper function for tgi_line and tgi_lineto. Pops/stores X2/Y2.
+;
+
+        .include        "tgi-kernel.inc"
+
+        .import         popax
+        .importzp       ptr3, ptr4
+
+tgi_linepop:
+        sta     ptr4            ; Y2
+        stx     ptr4+1
+        sta     _tgi_cury
+        stx     _tgi_cury+1
+        jsr     popax
+        sta     ptr3            ; X2
+        stx     ptr3+1
+        sta     _tgi_curx
+        sta     _tgi_curx+1
+        rts
+
+