Replaced whole bunch for Makefiles with a single generic Makefile.

- No complex shell logic.
- "Source file shadowing" for all targets via vpath.
- Dependency handling.
- True incremental build.
- Don't write into source directories.
- Easy cleanup by just removing 'wrk'.

libsrc/atari/tgi/atari5.s

@@ -0,0 +1,88 @@
+;
+; Graphics driver for the 80x48x4 (CIO mode 5, ANTIC mode A) on the Atari.
+;
+; Fatih Aygun (2009)
+;
+
+	.include	"atari.inc"
+	.include 	"zeropage.inc"
+
+	.include 	"tgi-kernel.inc"
+	.include        "tgi-error.inc"
+
+	.macpack        generic
+
+; ******************************************************************************
+
+	; ----------------------------------------------------------------------
+	;
+	; Constants and tables
+	;
+	; ----------------------------------------------------------------------
+
+; Graphics mode
+	grmode = 5
+; X resolution
+	x_res = 80
+; Y resolution
+	y_res = 48
+; Number of colors
+	colors = 4
+; Pixels per byte
+	ppb = 4
+; Screen memory size in bytes
+	scrsize = x_res * y_res / ppb
+; Pixel aspect ratio
+	aspect = $00CC				; based on 4/3 display
+; Free memory needed
+	mem_needed = 185
+; Number of screen pages
+	pages = 1
+
+.rodata
+	mask_table:				; Mask table to set pixels
+		.byte	%11000000, %00110000, %00001100, %00000011
+	masks:					; Color masks
+		.byte	%00000000, %01010101, %10101010, %11111111
+	bar_table:				; Mask table for BAR
+		.byte	%11111111, %00111111, %00001111, %00000011, %00000000
+	default_palette:
+		.byte	$00, $0E, $32, $96
+
+.code
+
+; ******************************************************************************
+
+.proc SETPALETTE
+
+	; ----------------------------------------------------------------------
+	;
+	; SETPALETTE: Set the palette (in ptr1)
+	;
+	; ----------------------------------------------------------------------
+
+.code
+	; Copy the palette
+	ldy     #colors - 1
+loop:	lda     (ptr1),y
+	sta     palette,y
+	dey
+	bpl     loop
+
+	; Get the color entries from the palette
+	lda	palette
+	sta	COLOR4
+	lda	palette + 1
+	sta	COLOR0
+	lda	palette + 2
+	sta	COLOR1
+	lda	palette + 3
+	sta	COLOR2
+
+	; Done, reset the error code
+        lda     #TGI_ERR_OK
+        sta     error
+        rts
+.endproc
+
+.include "atari_tgi_common.inc"