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Atari colors into _gtia.h; NMIRES/NMIST as union
Use a C "union" to give both read (NMIST) and write (NMIRES) labels to their shared register in ANTIC. (h/t @groessler). Consolodate duplicated color definitions (HUE_..., COLOR_... and TGI_COLOR_...; and the "_gtia_mkcolor()" macro), found in both "atari.h" and "atari5200.h", moving it to "_gtia.h", which they both share (and which makes the most sense).
This commit is contained in:
Bill Kendrick
parent
32525e0ddb
commit
af8eb57f63
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@ -64,10 +64,15 @@ struct __antic {
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unsigned char penh; /* (R) light pen horizontal position */
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unsigned char penv; /* (R) light pen vertical position */
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unsigned char nmien; /* (W) non-maskable interrupt enable */
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unsigned char nmires;
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/* (W) ("NMIRES") nmi reset -- clears the interrupt request register; resets all of the NMI status together
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** (R) ("NMIST") nmi status -- holds cause for the NMI interrupt
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*/
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union {
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/* (W) ("NMIRES") nmi reset -- clears the interrupt request register;
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** resets all of the NMI status together
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*/
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unsigned char nmires;
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/* (R) ("NMIST") nmi status -- holds cause for the NMI interrupt */
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unsigned char nmist;
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};
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};
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@ -98,10 +98,77 @@ struct __gtia_write {
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#define PMG_SIZE_QUAD 0x2 /* four color clocks per pixel */
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/* COLPM0-COLPM3, COLPF0-COLPF3, COLBK color registers:
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** See the "HUE_..." #defines in "atari.h" for the hue values;
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** Bitwise OR (|) with 0x00 (darkest) through 0x0F (lightest) (only even values are unique)
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/* COLPM0-COLPM3, COLPF0-COLPF3, COLBK color registers */
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/*****************************************************************************/
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/* Color definitions */
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/*****************************************************************************/
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/* Make a GTIA color value */
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#define _gtia_mkcolor(hue,lum) (((hue) << 4) | ((lum) << 1))
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/* Luminance values go from 0 (black) to 7 (white) */
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/* Hue values */
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/* (These can vary depending on TV standard (NTSC vs PAL),
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** tint potentiometer settings, TV tint settings, emulator palette, etc.)
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*/
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#define HUE_GREY 0
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#define HUE_GOLD 1
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#define HUE_GOLDORANGE 2
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#define HUE_REDORANGE 3
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#define HUE_ORANGE 4
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#define HUE_MAGENTA 5
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#define HUE_PURPLE 6
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#define HUE_BLUE 7
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#define HUE_BLUE2 8
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#define HUE_CYAN 9
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#define HUE_BLUEGREEN 10
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#define HUE_BLUEGREEN2 11
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#define HUE_GREEN 12
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#define HUE_YELLOWGREEN 13
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#define HUE_YELLOW 14
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#define HUE_YELLOWRED 15
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/* Color defines, similar to c64 colors (untested) */
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/* Note that the conio color implementation is monochrome
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** (bgcolor and textcolor are only placeholders)
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*/
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/* Use the defines with the setcolor() or _atari_xxxcolor() functions */
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#define COLOR_BLACK _gtia_mkcolor(HUE_GREY,0)
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#define COLOR_WHITE _gtia_mkcolor(HUE_GREY,7)
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#define COLOR_RED _gtia_mkcolor(HUE_REDORANGE,1)
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#define COLOR_CYAN _gtia_mkcolor(HUE_CYAN,3)
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#define COLOR_VIOLET _gtia_mkcolor(HUE_PURPLE,4)
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#define COLOR_GREEN _gtia_mkcolor(HUE_GREEN,2)
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#define COLOR_BLUE _gtia_mkcolor(HUE_BLUE,2)
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#define COLOR_YELLOW _gtia_mkcolor(HUE_YELLOW,7)
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#define COLOR_ORANGE _gtia_mkcolor(HUE_ORANGE,5)
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#define COLOR_BROWN _gtia_mkcolor(HUE_YELLOW,2)
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#define COLOR_LIGHTRED _gtia_mkcolor(HUE_REDORANGE,6)
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#define COLOR_GRAY1 _gtia_mkcolor(HUE_GREY,2)
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#define COLOR_GRAY2 _gtia_mkcolor(HUE_GREY,3)
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#define COLOR_LIGHTGREEN _gtia_mkcolor(HUE_GREEN,6)
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#define COLOR_LIGHTBLUE _gtia_mkcolor(HUE_BLUE,6)
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#define COLOR_GRAY3 _gtia_mkcolor(HUE_GREY,5)
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/* TGI color defines */
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#define TGI_COLOR_BLACK COLOR_BLACK
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#define TGI_COLOR_WHITE COLOR_WHITE
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#define TGI_COLOR_RED COLOR_RED
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#define TGI_COLOR_CYAN COLOR_CYAN
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#define TGI_COLOR_VIOLET COLOR_VIOLET
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#define TGI_COLOR_GREEN COLOR_GREEN
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#define TGI_COLOR_BLUE COLOR_BLUE
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#define TGI_COLOR_YELLOW COLOR_YELLOW
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#define TGI_COLOR_ORANGE COLOR_ORANGE
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#define TGI_COLOR_BROWN COLOR_BROWN
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#define TGI_COLOR_LIGHTRED COLOR_LIGHTRED
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#define TGI_COLOR_GRAY1 COLOR_GRAY1
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#define TGI_COLOR_GRAY2 COLOR_GRAY2
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#define TGI_COLOR_LIGHTGREEN COLOR_LIGHTGREEN
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#define TGI_COLOR_LIGHTBLUE COLOR_LIGHTBLUE
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#define TGI_COLOR_GRAY3 COLOR_GRAY3
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/*****************************************************************************/
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@ -91,77 +91,6 @@
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#define CH_VLINE 0x7C
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/*****************************************************************************/
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/* Color definitions */
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/*****************************************************************************/
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/* Make a GTIA color value */
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#define _gtia_mkcolor(hue,lum) (((hue) << 4) | ((lum) << 1))
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/* Luminance values go from 0 (black) to 7 (white) */
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/* Hue values */
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/* (These can vary depending on TV standard (NTSC vs PAL),
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** tint potentiometer settings, TV tint settings, emulator palette, etc.)
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*/
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#define HUE_GREY 0
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#define HUE_GOLD 1
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#define HUE_GOLDORANGE 2
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#define HUE_REDORANGE 3
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#define HUE_ORANGE 4
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#define HUE_MAGENTA 5
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#define HUE_PURPLE 6
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#define HUE_BLUE 7
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#define HUE_BLUE2 8
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#define HUE_CYAN 9
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#define HUE_BLUEGREEN 10
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#define HUE_BLUEGREEN2 11
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#define HUE_GREEN 12
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#define HUE_YELLOWGREEN 13
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#define HUE_YELLOW 14
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#define HUE_YELLOWRED 15
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/* Color defines, similar to c64 colors (untested) */
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/* Note that the conio color implementation is monochrome
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** (bgcolor and textcolor are only placeholders)
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*/
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/* Use the defines with the setcolor() or _atari_xxxcolor() functions */
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#define COLOR_BLACK _gtia_mkcolor(HUE_GREY,0)
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#define COLOR_WHITE _gtia_mkcolor(HUE_GREY,7)
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#define COLOR_RED _gtia_mkcolor(HUE_REDORANGE,1)
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#define COLOR_CYAN _gtia_mkcolor(HUE_CYAN,3)
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#define COLOR_VIOLET _gtia_mkcolor(HUE_PURPLE,4)
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#define COLOR_GREEN _gtia_mkcolor(HUE_GREEN,2)
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#define COLOR_BLUE _gtia_mkcolor(HUE_BLUE,2)
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#define COLOR_YELLOW _gtia_mkcolor(HUE_YELLOW,7)
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#define COLOR_ORANGE _gtia_mkcolor(HUE_ORANGE,5)
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#define COLOR_BROWN _gtia_mkcolor(HUE_YELLOW,2)
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#define COLOR_LIGHTRED _gtia_mkcolor(HUE_REDORANGE,6)
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#define COLOR_GRAY1 _gtia_mkcolor(HUE_GREY,2)
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#define COLOR_GRAY2 _gtia_mkcolor(HUE_GREY,3)
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#define COLOR_LIGHTGREEN _gtia_mkcolor(HUE_GREEN,6)
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#define COLOR_LIGHTBLUE _gtia_mkcolor(HUE_BLUE,6)
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#define COLOR_GRAY3 _gtia_mkcolor(HUE_GREY,5)
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/* TGI color defines */
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#define TGI_COLOR_BLACK COLOR_BLACK
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#define TGI_COLOR_WHITE COLOR_WHITE
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#define TGI_COLOR_RED COLOR_RED
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#define TGI_COLOR_CYAN COLOR_CYAN
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#define TGI_COLOR_VIOLET COLOR_VIOLET
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#define TGI_COLOR_GREEN COLOR_GREEN
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#define TGI_COLOR_BLUE COLOR_BLUE
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#define TGI_COLOR_YELLOW COLOR_YELLOW
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#define TGI_COLOR_ORANGE COLOR_ORANGE
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#define TGI_COLOR_BROWN COLOR_BROWN
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#define TGI_COLOR_LIGHTRED COLOR_LIGHTRED
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#define TGI_COLOR_GRAY1 COLOR_GRAY1
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#define TGI_COLOR_GRAY2 COLOR_GRAY2
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#define TGI_COLOR_LIGHTGREEN COLOR_LIGHTGREEN
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#define TGI_COLOR_LIGHTBLUE COLOR_LIGHTBLUE
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#define TGI_COLOR_GRAY3 COLOR_GRAY3
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/*****************************************************************************/
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/* Masks for joy_read */
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/*****************************************************************************/
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@ -46,47 +46,6 @@
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/* the addresses of the static drivers */
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extern void atr5200std_joy[]; /* referred to by joy_static_stddrv[] */
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/* make GTIA color value */
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#define _gtia_mkcolor(hue,lum) (((hue) << 4) | ((lum) << 1))
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/* luminance values go from 0 (black) to 7 (white) */
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/* hue values */
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#define HUE_GREY 0
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#define HUE_GOLD 1
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#define HUE_GOLDORANGE 2
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#define HUE_REDORANGE 3
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#define HUE_ORANGE 4
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#define HUE_MAGENTA 5
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#define HUE_PURPLE 6
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#define HUE_BLUE 7
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#define HUE_BLUE2 8
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#define HUE_CYAN 9
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#define HUE_BLUEGREEN 10
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#define HUE_BLUEGREEN2 11
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#define HUE_GREEN 12
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#define HUE_YELLOWGREEN 13
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#define HUE_YELLOW 14
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#define HUE_YELLOWRED 15
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/* Color defines, similar to c64 colors (untested) */
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#define COLOR_BLACK _gtia_mkcolor(HUE_GREY,0)
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#define COLOR_WHITE _gtia_mkcolor(HUE_GREY,7)
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#define COLOR_RED _gtia_mkcolor(HUE_REDORANGE,1)
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#define COLOR_CYAN _gtia_mkcolor(HUE_CYAN,3)
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#define COLOR_VIOLET _gtia_mkcolor(HUE_PURPLE,4)
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#define COLOR_GREEN _gtia_mkcolor(HUE_GREEN,2)
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#define COLOR_BLUE _gtia_mkcolor(HUE_BLUE,2)
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#define COLOR_YELLOW _gtia_mkcolor(HUE_YELLOW,7)
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#define COLOR_ORANGE _gtia_mkcolor(HUE_ORANGE,5)
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#define COLOR_BROWN _gtia_mkcolor(HUE_YELLOW,2)
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#define COLOR_LIGHTRED _gtia_mkcolor(HUE_REDORANGE,6)
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#define COLOR_GRAY1 _gtia_mkcolor(HUE_GREY,2)
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#define COLOR_GRAY2 _gtia_mkcolor(HUE_GREY,3)
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#define COLOR_LIGHTGREEN _gtia_mkcolor(HUE_GREEN,6)
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#define COLOR_LIGHTBLUE _gtia_mkcolor(HUE_BLUE,6)
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#define COLOR_GRAY3 _gtia_mkcolor(HUE_GREY,5)
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/* Masks for joy_read */
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#define JOY_UP_MASK 0x01
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#define JOY_DOWN_MASK 0x02
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