From c09d6a7299a89c250db712d32a87b83e62f14d1a Mon Sep 17 00:00:00 2001 From: uz Date: Sat, 17 Mar 2012 21:07:41 +0000 Subject: [PATCH] Added an improved definition of the __vic2 structure using anon structs/unions. For compatibility reasons the new definition is active only in cc65 mode. git-svn-id: svn://svn.cc65.org/cc65/trunk@5619 b7a2c559-68d2-44c3-8de9-860c34a00d81 --- include/_vic2.h | 202 ++++++++++++++++++++++++++++++++++-------------- 1 file changed, 146 insertions(+), 56 deletions(-) diff --git a/include/_vic2.h b/include/_vic2.h index cfc5f5a41..2031944bb 100644 --- a/include/_vic2.h +++ b/include/_vic2.h @@ -1,15 +1,15 @@ /*****************************************************************************/ /* */ -/* _vic2.h */ +/* _vic2.h */ /* */ -/* Internal include file, do not use directly */ +/* Internal include file, do not use directly */ /* */ /* */ /* */ -/* (C) 1998-2000 Ullrich von Bassewitz */ -/* Wacholderweg 14 */ -/* D-70597 Stuttgart */ -/* EMail: uz@musoftware.de */ +/* (C) 1998-2012, Ullrich von Bassewitz */ +/* Roemerstrasse 52 */ +/* D-70794 Filderstadt */ +/* EMail: uz@cc65.org */ /* */ /* */ /* This software is provided 'as-is', without any expressed or implied */ @@ -38,60 +38,150 @@ -/* Define a structure with the vic register offsets */ +/* Define a structure with the vic register offsets. In cc65 mode, there + * are aliases for the field accessible as arrays. + */ +#if __CC65_STD__ == __CC65_STD_CC65__ struct __vic2 { - unsigned char spr0_x; /* Sprite 0, X coordinate */ - unsigned char spr0_y; /* Sprite 0, Y coordinate */ - unsigned char spr1_x; /* Sprite 1, X coordinate */ - unsigned char spr1_y; /* Sprite 1, Y coordinate */ - unsigned char spr2_x; /* Sprite 2, X coordinate */ - unsigned char spr2_y; /* Sprite 2, Y coordinate */ - unsigned char spr3_x; /* Sprite 3, X coordinate */ - unsigned char spr3_y; /* Sprite 3, Y coordinate */ - unsigned char spr4_x; /* Sprite 4, X coordinate */ - unsigned char spr4_y; /* Sprite 4, Y coordinate */ - unsigned char spr5_x; /* Sprite 5, X coordinate */ - unsigned char spr5_y; /* Sprite 5, Y coordinate */ - unsigned char spr6_x; /* Sprite 6, X coordinate */ - unsigned char spr6_y; /* Sprite 6, Y coordinate */ - unsigned char spr7_x; /* Sprite 7, X coordinate */ - unsigned char spr7_y; /* Sprite 7, Y coordinate */ - unsigned char spr_hi_x; /* High bits of X coordinate */ - unsigned char ctrl1; /* Control register 1 */ - unsigned char rasterline; /* Current raster line */ - unsigned char strobe_x; /* Light pen, X position */ - unsigned char strobe_y; /* Light pen, Y position */ - unsigned char spr_ena; /* Enable sprites */ - unsigned char ctrl2; /* Control register 2 */ - unsigned char spr_exp_y; /* Expand sprites in Y dir */ - unsigned char addr; /* Address of chargen and video ram */ - unsigned char irr; /* Interrupt request register */ - unsigned char imr; /* Interrupt mask register */ - unsigned char spr_bg_prio; /* Priority to background */ - unsigned char spr_mcolor; /* Sprite multicolor bits */ - unsigned char spr_exp_x; /* Expand sprites in X dir */ - unsigned char spr_coll; /* Sprite/sprite collision reg */ - unsigned char spr_bg_coll; /* Sprite/background collision reg */ - unsigned char bordercolor; /* Border color */ - unsigned char bgcolor0; /* Background color 0 */ - unsigned char bgcolor1; /* Background color 1 */ - unsigned char bgcolor2; /* Background color 2 */ - unsigned char bgcolor3; /* Background color 3 */ - unsigned char spr_mcolor0; /* Color 0 for multicolor sprites */ - unsigned char spr_mcolor1; /* Color 1 for multicolor sprites */ - unsigned char spr0_color; /* Color sprite 0 */ - unsigned char spr1_color; /* Color sprite 1 */ - unsigned char spr2_color; /* Color sprite 2 */ - unsigned char spr3_color; /* Color sprite 3 */ - unsigned char spr4_color; /* Color sprite 4 */ - unsigned char spr5_color; /* Color sprite 5 */ - unsigned char spr6_color; /* Color sprite 6 */ - unsigned char spr7_color; /* Color sprite 7 */ + union { + struct { + unsigned char spr0_x; /* Sprite 0, X coordinate */ + unsigned char spr0_y; /* Sprite 0, Y coordinate */ + unsigned char spr1_x; /* Sprite 1, X coordinate */ + unsigned char spr1_y; /* Sprite 1, Y coordinate */ + unsigned char spr2_x; /* Sprite 2, X coordinate */ + unsigned char spr2_y; /* Sprite 2, Y coordinate */ + unsigned char spr3_x; /* Sprite 3, X coordinate */ + unsigned char spr3_y; /* Sprite 3, Y coordinate */ + unsigned char spr4_x; /* Sprite 4, X coordinate */ + unsigned char spr4_y; /* Sprite 4, Y coordinate */ + unsigned char spr5_x; /* Sprite 5, X coordinate */ + unsigned char spr5_y; /* Sprite 5, Y coordinate */ + unsigned char spr6_x; /* Sprite 6, X coordinate */ + unsigned char spr6_y; /* Sprite 6, Y coordinate */ + unsigned char spr7_x; /* Sprite 7, X coordinate */ + unsigned char spr7_y; /* Sprite 7, Y coordinate */ + }; + struct { + unsigned char x; /* X coordinate */ + unsigned char y; /* Y coordinate */ + } spr_pos[8]; + }; + unsigned char spr_hi_x; /* High bits of X coordinate */ + unsigned char ctrl1; /* Control register 1 */ + unsigned char rasterline; /* Current raster line */ + union { + struct { + unsigned char strobe_x; /* Light pen, X position */ + unsigned char strobe_y; /* Light pen, Y position */ + }; + struct { + unsigned char x; /* Light pen, X position */ + unsigned char y; /* Light pen, Y position */ + } strobe; + }; + unsigned char spr_ena; /* Enable sprites */ + unsigned char ctrl2; /* Control register 2 */ + unsigned char spr_exp_y; /* Expand sprites in Y dir */ + unsigned char addr; /* Address of chargen and video ram */ + unsigned char irr; /* Interrupt request register */ + unsigned char imr; /* Interrupt mask register */ + unsigned char spr_bg_prio; /* Priority to background */ + unsigned char spr_mcolor; /* Sprite multicolor bits */ + unsigned char spr_exp_x; /* Expand sprites in X dir */ + unsigned char spr_coll; /* Sprite/sprite collision reg */ + unsigned char spr_bg_coll; /* Sprite/background collision reg */ + unsigned char bordercolor; /* Border color */ + union { + struct { + unsigned char bgcolor0; /* Background color 0 */ + unsigned char bgcolor1; /* Background color 1 */ + unsigned char bgcolor2; /* Background color 2 */ + unsigned char bgcolor3; /* Background color 3 */ + }; + unsigned char bgcolor[4]; /* Background colors */ + }; + union { + struct { + unsigned char spr_mcolor0; /* Color 0 for multicolor sprites */ + unsigned char spr_mcolor1; /* Color 1 for multicolor sprites */ + }; + /* spr_color is already used ... */ + unsigned char spr_mcolors[2]; /* Color for multicolor sprites */ + }; + union { + struct { + unsigned char spr0_color; /* Color sprite 0 */ + unsigned char spr1_color; /* Color sprite 1 */ + unsigned char spr2_color; /* Color sprite 2 */ + unsigned char spr3_color; /* Color sprite 3 */ + unsigned char spr4_color; /* Color sprite 4 */ + unsigned char spr5_color; /* Color sprite 5 */ + unsigned char spr6_color; /* Color sprite 6 */ + unsigned char spr7_color; /* Color sprite 7 */ + }; + unsigned char spr_color[8]; /* Colors for the sprites */ + }; /* The following ones are only valid in the C128: */ - unsigned char x_kbd; /* Additional keyboard lines */ - unsigned char clock; /* Clock switch bit */ + unsigned char x_kbd; /* Additional keyboard lines */ + unsigned char clock; /* Clock switch bit */ }; +#else +struct __vic2 { + unsigned char spr0_x; /* Sprite 0, X coordinate */ + unsigned char spr0_y; /* Sprite 0, Y coordinate */ + unsigned char spr1_x; /* Sprite 1, X coordinate */ + unsigned char spr1_y; /* Sprite 1, Y coordinate */ + unsigned char spr2_x; /* Sprite 2, X coordinate */ + unsigned char spr2_y; /* Sprite 2, Y coordinate */ + unsigned char spr3_x; /* Sprite 3, X coordinate */ + unsigned char spr3_y; /* Sprite 3, Y coordinate */ + unsigned char spr4_x; /* Sprite 4, X coordinate */ + unsigned char spr4_y; /* Sprite 4, Y coordinate */ + unsigned char spr5_x; /* Sprite 5, X coordinate */ + unsigned char spr5_y; /* Sprite 5, Y coordinate */ + unsigned char spr6_x; /* Sprite 6, X coordinate */ + unsigned char spr6_y; /* Sprite 6, Y coordinate */ + unsigned char spr7_x; /* Sprite 7, X coordinate */ + unsigned char spr7_y; /* Sprite 7, Y coordinate */ + unsigned char spr_hi_x; /* High bits of X coordinate */ + unsigned char ctrl1; /* Control register 1 */ + unsigned char rasterline; /* Current raster line */ + unsigned char strobe_x; /* Light pen, X position */ + unsigned char strobe_y; /* Light pen, Y position */ + unsigned char spr_ena; /* Enable sprites */ + unsigned char ctrl2; /* Control register 2 */ + unsigned char spr_exp_y; /* Expand sprites in Y dir */ + unsigned char addr; /* Address of chargen and video ram */ + unsigned char irr; /* Interrupt request register */ + unsigned char imr; /* Interrupt mask register */ + unsigned char spr_bg_prio; /* Priority to background */ + unsigned char spr_mcolor; /* Sprite multicolor bits */ + unsigned char spr_exp_x; /* Expand sprites in X dir */ + unsigned char spr_coll; /* Sprite/sprite collision reg */ + unsigned char spr_bg_coll; /* Sprite/background collision reg */ + unsigned char bordercolor; /* Border color */ + unsigned char bgcolor0; /* Background color 0 */ + unsigned char bgcolor1; /* Background color 1 */ + unsigned char bgcolor2; /* Background color 2 */ + unsigned char bgcolor3; /* Background color 3 */ + unsigned char spr_mcolor0; /* Color 0 for multicolor sprites */ + unsigned char spr_mcolor1; /* Color 1 for multicolor sprites */ + unsigned char spr0_color; /* Color sprite 0 */ + unsigned char spr1_color; /* Color sprite 1 */ + unsigned char spr2_color; /* Color sprite 2 */ + unsigned char spr3_color; /* Color sprite 3 */ + unsigned char spr4_color; /* Color sprite 4 */ + unsigned char spr5_color; /* Color sprite 5 */ + unsigned char spr6_color; /* Color sprite 6 */ + unsigned char spr7_color; /* Color sprite 7 */ + + /* The following ones are only valid in the C128: */ + unsigned char x_kbd; /* Additional keyboard lines */ + unsigned char clock; /* Clock switch bit */ +}; +#endif -- 2.39.5