Added a way to show the default mouse pointer on C64 TGI (graphics) screens.

libsrc/c64/extra/tgimousedata.s

@@ -0,0 +1,21 @@
+; C64 sprite addresses for the TGI mouse pointer
+;
+; 2017-01-13, Greg King
+
+; In order to provide a visible mouse pointer during TGI's graphics mode,
+; the object file "c64-tgimousedata.o" must be linked explicitly into
+; a program file.  Example:
+;
+; cl65 -t c64 -o program-file main-code.c subroutines.s c64-tgimousedata.o
+;
+; Note:  Currently, a program cannot have default
+; pointers for both text and graphic modes.
+
+; The TGI graphics mode uses VIC-II's 16K bank number three.
+;
+; Address of the TGI bitmap's color RAM
+
+COLORMAP        :=      $D000
+
+        .export         mcb_spritepointer := COLORMAP + $03F8
+        .export         mcb_spritememory  := COLORMAP + $0400

libsrc/c64/tgi/c64-hi.s

@@ -1,7 +1,9 @@
 ;
 ; Graphics driver for the 320x200x2 mode on the C64.
 ;
-; Based on Stephen L. Judds GRLIB code
+; Based on Stephen L. Judd's GRLIB code.
+;
+; 2017-01-13, Greg King
 ;
 
         .include        "zeropage.inc"
@@ -351,7 +353,7 @@ SETPALETTE:
 @L2:    sta     CBASE+$0000,y
         sta     CBASE+$0100,y
         sta     CBASE+$0200,y
-        sta     CBASE+$0300,y
+        sta     CBASE+$02e8,y
         iny
         bne     @L2
         pla
@@ -872,7 +874,7 @@ TEXTSTYLE:
 OUTTEXT:
 
 ; Calculate a pointer to the representation of the character in the
-; character ROM 
+; character ROM
 
         ldx     #((>(CHARROM + $0800)) >> 3)
         ldy     #0
@@ -957,5 +959,3 @@ CALC:   lda     Y1
         lda     #00
 @L9:    sta     INRANGE
         rts
-
-