1 files changed, 30 insertions, 37 deletions

diff --git a/source/main.c b/source/main.c
index 3407a88..010210c 100644
--- a/source/main.c
+++ b/source/main.c
@@ -81,6 +81,14 @@ typedef enum
 #endif
 } MenuOpt;
 
+
+/* Backgrounds
+*/
+static int	main_bitmap_bg;
+static int	main_text_overlay_bg;
+static int	sub_bitmap_bg;
+static int	sub_text_overlay_bg;
+
 /* ---------------------------------------- IRQ FUNCS
 */
 
@@ -132,8 +140,7 @@ static void Splash(void)
 		      "20 print \"%the zx81 is ace%\"\n"
 		      "30 goto 20");
 
-    SUB_BG2_XDX = 0x080;
-    SUB_BG2_YDY = 0x080;
+    bgSetScale(sub_text_overlay_bg, 0x80, 0x80);
 
     TM_printf(0,11,"%-18.18s",scroller);
 
@@ -217,12 +224,13 @@ static void Splash(void)
 	    TM_printf(0,11,"%-18.18s",scroller); 
 	}
 
-	SUB_BG2_CX = scr_x << 8;
+	bgSetScroll(sub_text_overlay_bg, scr_x << 8, 0);
+	bgUpdate();
     }
 
-    SUB_BG2_XDX = 0x100;
-    SUB_BG2_YDY = 0x100;
-    SUB_BG2_CX = 0;
+    bgSetScale(sub_text_overlay_bg, 0x100, 0x100);
+    bgSetScroll(sub_text_overlay_bg, 0, 0);
+    bgUpdate();
 
     TM_Cls();
 
@@ -298,31 +306,24 @@ int main(int argc, char *argv[])
 {
     Z80 *z80;
 
-    powerON(POWER_ALL_2D);
+    powerOn(POWER_ALL_2D);
 
     /* Set up main screen for ZX81 and load the ROM character data
     */
-    videoSetMode(MODE_3_2D | DISPLAY_BG0_ACTIVE | DISPLAY_BG3_ACTIVE);
+    videoSetMode(MODE_3_2D);
 
     vramSetBankA(VRAM_A_MAIN_BG_0x06000000);
     vramSetBankB(VRAM_B_MAIN_BG_0x06020000);
 
-    BG0_CR = BG_COLOR_256 | BG_32x32 | BG_MAP_BASE(0) |
-    		BG_TILE_BASE(1) | BG_PRIORITY(0);
-    BG0_X0 = 0;
-    BG0_Y0 = 0;
+    main_bitmap_bg = bgInit(0, BgType_Bmp16, BgSize_B16_256x256, 2, 0);
+    main_text_overlay_bg = bgInit(3, BgType_Text8bpp, BgSize_T_256x256, 0, 1);
+
+    bgSetPriority(main_bitmap_bg, 1);
+    bgSetPriority(main_text_overlay_bg, 0);
 
     BG_PALETTE[0] = RGB15(31,31,31);
     BG_PALETTE[1] = RGB15(0,0,0);
 
-    BG3_CR = BG_BMP16_256x256 | BG_BMP_BASE(2) | BG_PRIORITY(1);
-    BG3_XDX = 0x100;
-    BG3_XDY = 0;
-    BG3_YDX = 0;
-    BG3_YDY = 0x100;
-    BG3_CX = 0;
-    BG3_CY = 0;
-
     dmaCopy(rom_font_bin,(void *)BG_TILE_RAM(1),rom_font_bin_size);
 
     /* Set up the sub-screen for rotation (basically for use as a framebuffer).
@@ -331,25 +332,17 @@ int main(int argc, char *argv[])
        the ZX81 run).  Having said the overlay is currently a rotation map
        for some pointless frippery!  Still be quicker though.
     */
-    videoSetModeSub(MODE_4_2D | DISPLAY_BG2_ACTIVE | DISPLAY_BG3_ACTIVE);
+    videoSetModeSub(MODE_4_2D);
+    videoBgEnableSub(2);
+    videoBgEnableSub(3);
+
     vramSetBankC(VRAM_C_SUB_BG_0x06200000);
 
-    SUB_BG2_CR = BG_COLOR_256 | BG_RS_32x32 | BG_MAP_BASE(4) |
-		    BG_TILE_BASE(0) | BG_PRIORITY(0);
-    SUB_BG2_XDX = 0x100;
-    SUB_BG2_XDY = 0;
-    SUB_BG2_YDX = 0;
-    SUB_BG2_YDY = 0x100;
-    SUB_BG2_CX = 0;
-    SUB_BG2_CY = 0;
-
-    SUB_BG3_CR = BG_BMP8_256x256 | BG_BMP_BASE(1) | BG_PRIORITY(1);
-    SUB_BG3_XDX = 0x100;
-    SUB_BG3_XDY = 0;
-    SUB_BG3_YDX = 0;
-    SUB_BG3_YDY = 0x100;
-    SUB_BG3_CX = 0;
-    SUB_BG3_CY = 0;
+    sub_bitmap_bg = bgInit(3, BgType_Bmp8, BgSize_B8_256x256, 1, 0);
+    sub_text_overlay_bg = bgInit(2, BgType_Rotation, BgSize_R_256x256, 4, 0);
+
+    bgSetPriority(sub_bitmap_bg, 1);
+    bgSetPriority(sub_text_overlay_bg, 0);
 
     /* Tell 'framebuffer' routines to use this
     */