mirror of https://github.com/cc65/cc65.git
555 lines
22 KiB
C
555 lines
22 KiB
C
/*****************************************************************************/
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/* */
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/* atari.h */
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/* */
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/* Atari system specific definitions */
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/* */
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/* */
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/* */
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/* (C) 2000-2021 Mark Keates <markk@dendrite.co.uk> */
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/* Freddy Offenga <taf_offenga@yahoo.com> */
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/* Christian Groessler <chris@groessler.org> */
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/* Bill Kendrick <nbs@sonic.net> */
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/* et al. */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef _ATARI_H
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#define _ATARI_H
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/* Check for errors */
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#if !defined(__ATARI__)
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# error This module may only be used when compiling for the Atari!
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#endif
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/*****************************************************************************/
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/* Character codes */
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/*****************************************************************************/
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#define CH_DELCHR 0xFE /* delete char under the cursor */
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#define CH_ENTER 0x9B
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#define CH_ESC 0x1B
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#define CH_CURS_UP 28
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#define CH_CURS_DOWN 29
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#define CH_CURS_LEFT 30
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#define CH_CURS_RIGHT 31
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#define CH_TAB 0x7F /* tabulator */
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#define CH_EOL 0x9B /* end-of-line marker */
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#define CH_CLR 0x7D /* clear screen */
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#define CH_BEL 0xFD /* bell */
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#define CH_DEL 0x7E /* back space (delete char to the left) */
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#define CH_RUBOUT 0x7E /* back space (old, deprecated) */
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#define CH_DELLINE 0x9C /* delete line */
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#define CH_INSLINE 0x9D /* insert line */
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/* These are defined to be Atari + NumberKey */
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#define CH_F1 177
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#define CH_F2 178
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#define CH_F3 179
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#define CH_F4 180
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#define CH_F5 181
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#define CH_F6 182
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#define CH_F7 183
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#define CH_F8 184
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#define CH_F9 185
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#define CH_F10 176
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#define CH_ULCORNER 0x11
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#define CH_URCORNER 0x05
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#define CH_LLCORNER 0x1A
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#define CH_LRCORNER 0x03
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#define CH_TTEE 0x17
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#define CH_BTEE 0x18
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#define CH_LTEE 0x01
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#define CH_RTEE 0x04
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#define CH_CROSS 0x13
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#define CH_HLINE 0x12
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#define CH_VLINE 0x7C
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/*****************************************************************************/
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/* Masks for joy_read */
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/*****************************************************************************/
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#define JOY_UP_MASK 0x01
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#define JOY_DOWN_MASK 0x02
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#define JOY_LEFT_MASK 0x04
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#define JOY_RIGHT_MASK 0x08
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#define JOY_BTN_1_MASK 0x10
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#define JOY_FIRE_MASK JOY_BTN_1_MASK
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#define JOY_FIRE(v) ((v) & JOY_FIRE_MASK)
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/*****************************************************************************/
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/* Keyboard values returned by kbcode / CH */
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/*****************************************************************************/
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#define KEY_NONE ((unsigned char) 0xFF)
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#define KEY_0 ((unsigned char) 0x32)
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#define KEY_1 ((unsigned char) 0x1F)
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#define KEY_2 ((unsigned char) 0x1E)
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#define KEY_3 ((unsigned char) 0x1A)
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#define KEY_4 ((unsigned char) 0x18)
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#define KEY_5 ((unsigned char) 0x1D)
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#define KEY_6 ((unsigned char) 0x1B)
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#define KEY_7 ((unsigned char) 0x33)
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#define KEY_8 ((unsigned char) 0x35)
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#define KEY_9 ((unsigned char) 0x30)
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#define KEY_A ((unsigned char) 0x3F)
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#define KEY_B ((unsigned char) 0x15)
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#define KEY_C ((unsigned char) 0x12)
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#define KEY_D ((unsigned char) 0x3A)
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#define KEY_E ((unsigned char) 0x2A)
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#define KEY_F ((unsigned char) 0x38)
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#define KEY_G ((unsigned char) 0x3D)
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#define KEY_H ((unsigned char) 0x39)
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#define KEY_I ((unsigned char) 0x0D)
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#define KEY_J ((unsigned char) 0x01)
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#define KEY_K ((unsigned char) 0x05)
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#define KEY_L ((unsigned char) 0x00)
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#define KEY_M ((unsigned char) 0x25)
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#define KEY_N ((unsigned char) 0x23)
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#define KEY_O ((unsigned char) 0x08)
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#define KEY_P ((unsigned char) 0x0A)
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#define KEY_Q ((unsigned char) 0x2F)
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#define KEY_R ((unsigned char) 0x28)
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#define KEY_S ((unsigned char) 0x3E)
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#define KEY_T ((unsigned char) 0x2D)
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#define KEY_U ((unsigned char) 0x0B)
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#define KEY_V ((unsigned char) 0x10)
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#define KEY_W ((unsigned char) 0x2E)
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#define KEY_X ((unsigned char) 0x16)
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#define KEY_Y ((unsigned char) 0x2B)
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#define KEY_Z ((unsigned char) 0x17)
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#define KEY_COMMA ((unsigned char) 0x20)
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#define KEY_PERIOD ((unsigned char) 0x22)
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#define KEY_SLASH ((unsigned char) 0x26)
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#define KEY_SEMICOLON ((unsigned char) 0x02)
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#define KEY_PLUS ((unsigned char) 0x06)
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#define KEY_ASTERISK ((unsigned char) 0x07)
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#define KEY_DASH ((unsigned char) 0x0E)
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#define KEY_EQUALS ((unsigned char) 0x0F)
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#define KEY_LESSTHAN ((unsigned char) 0x36)
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#define KEY_GREATERTHAN ((unsigned char) 0x37)
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#define KEY_ESC ((unsigned char) 0x1C)
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#define KEY_TAB ((unsigned char) 0x2C)
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#define KEY_SPACE ((unsigned char) 0x21)
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#define KEY_RETURN ((unsigned char) 0x0C)
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#define KEY_DELETE ((unsigned char) 0x34)
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#define KEY_CAPS ((unsigned char) 0x3C)
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#define KEY_INVERSE ((unsigned char) 0x27)
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#define KEY_HELP ((unsigned char) 0x11)
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/* Function keys only exist on the 1200XL model. */
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#define KEY_F1 ((unsigned char) 0x03)
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#define KEY_F2 ((unsigned char) 0x04)
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#define KEY_F3 ((unsigned char) 0x13)
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#define KEY_F4 ((unsigned char) 0x14)
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/* N.B. Cannot read Ctrl key alone */
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#define KEY_CTRL ((unsigned char) 0x80)
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/* N.B. Cannot read Shift key alone via KBCODE;
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** instead, check "Shfit key press" bit of SKSTAT register.
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** Also, no way to tell left Shift from right Shift.
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*/
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#define KEY_SHIFT ((unsigned char) 0x40)
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/* Composed keys
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** (Other combinations are possible, including Shift+Ctrl+key,
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** though not all such combinations are available.)
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*/
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#define KEY_EXCLAMATIONMARK (KEY_1 | KEY_SHIFT)
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#define KEY_QUOTE (KEY_2 | KEY_SHIFT)
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#define KEY_HASH (KEY_3 | KEY_SHIFT)
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#define KEY_DOLLAR (KEY_4 | KEY_SHIFT)
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#define KEY_PERCENT (KEY_5 | KEY_SHIFT)
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#define KEY_AMPERSAND (KEY_6 | KEY_SHIFT)
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#define KEY_APOSTROPHE (KEY_7 | KEY_SHIFT)
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#define KEY_AT (KEY_8 | KEY_SHIFT)
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#define KEY_OPENINGPARAN (KEY_9 | KEY_SHIFT)
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#define KEY_CLOSINGPARAN (KEY_0 | KEY_SHIFT)
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#define KEY_UNDERLINE (KEY_DASH | KEY_SHIFT)
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#define KEY_BAR (KEY_EQUALS | KEY_SHIFT)
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#define KEY_COLON (KEY_SEMICOLON | KEY_SHIFT)
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#define KEY_BACKSLASH (KEY_PLUS | KEY_SHIFT)
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#define KEY_CIRCUMFLEX (KEY_ASTERISK | KEY_SHIFT)
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#define KEY_OPENINGBRACKET (KEY_COMMA | KEY_SHIFT)
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#define KEY_CLOSINGBRACKET (KEY_PERIOD | KEY_SHIFT)
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#define KEY_QUESTIONMARK (KEY_SLASH | KEY_SHIFT)
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#define KEY_CLEAR (KEY_LESSTHAN | KEY_SHIFT)
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#define KEY_INSERT (KEY_GREATERTHAN | KEY_SHIFT)
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#define KEY_UP (KEY_DASH | KEY_CTRL)
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#define KEY_DOWN (KEY_EQUALS | KEY_CTRL)
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#define KEY_LEFT (KEY_PLUS | KEY_CTRL)
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#define KEY_RIGHT (KEY_ASTERISK | KEY_CTRL)
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/*****************************************************************************/
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/* Color register functions */
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/*****************************************************************************/
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extern void __fastcall__ _setcolor (unsigned char color_reg, unsigned char hue, unsigned char luminance);
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extern void __fastcall__ _setcolor_low (unsigned char color_reg, unsigned char color_value);
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extern unsigned char __fastcall__ _getcolor (unsigned char color_reg);
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/*****************************************************************************/
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/* Other screen functions */
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/*****************************************************************************/
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extern void waitvsync (void); /* wait for start of next frame */
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extern int __fastcall__ _graphics (unsigned char mode); /* mode value same as in BASIC */
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extern void __fastcall__ _scroll (signed char numlines);
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/* numlines > 0 scrolls up */
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/* numlines < 0 scrolls down */
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/*****************************************************************************/
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/* Sound function */
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/*****************************************************************************/
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extern void __fastcall__ _sound (unsigned char voice, unsigned char frequency, unsigned char distortion, unsigned char volume);
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/*****************************************************************************/
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/* Misc. functions */
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/*****************************************************************************/
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extern unsigned char get_ostype(void); /* get ROM version */
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extern unsigned char get_tv(void); /* get TV system */
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extern void _save_vecs(void); /* save system vectors */
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extern void _rest_vecs(void); /* restore system vectors */
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extern char *_getdefdev(void); /* get default floppy device */
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extern unsigned char _is_cmdline_dos(void); /* does DOS support command lines */
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/*****************************************************************************/
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/* Global variables */
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/*****************************************************************************/
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extern unsigned char _dos_type; /* the DOS flavour */
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#ifndef __ATARIXL__
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extern void atr130_emd[];
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extern void atrstd_joy[]; /* referred to by joy_static_stddrv[] */
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extern void atrmj8_joy[];
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extern void atrjoy_mou[];
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extern void atrst_mou[]; /* referred to by mouse_static_stddrv[] */
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extern void atrami_mou[];
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extern void atrtrk_mou[];
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extern void atrtt_mou[];
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extern void atrrdev_ser[]; /* referred to by ser_static_stddrv[] */
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extern void atr3_tgi[];
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extern void atr4_tgi[];
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extern void atr5_tgi[];
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extern void atr6_tgi[];
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extern void atr7_tgi[];
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extern void atr8_tgi[]; /* referred to by tgi_static_stddrv[] */
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extern void atr8p2_tgi[];
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extern void atr9_tgi[];
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extern void atr9p2_tgi[];
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extern void atr10_tgi[];
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extern void atr10p2_tgi[];
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extern void atr11_tgi[];
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extern void atr14_tgi[];
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extern void atr15_tgi[];
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extern void atr15p2_tgi[];
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#else
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extern void atrx130_emd[];
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extern void atrxstd_joy[]; /* referred to by joy_static_stddrv[] */
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extern void atrxmj8_joy[];
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extern void atrxjoy_mou[];
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extern void atrxst_mou[]; /* referred to by mouse_static_stddrv[] */
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extern void atrxami_mou[];
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extern void atrxtrk_mou[];
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extern void atrxtt_mou[];
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extern void atrxrdev_ser[]; /* referred to by ser_static_stddrv[] */
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extern void atrx3_tgi[];
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extern void atrx4_tgi[];
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extern void atrx5_tgi[];
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extern void atrx6_tgi[];
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extern void atrx7_tgi[];
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extern void atrx8_tgi[]; /* referred to by tgi_static_stddrv[] */
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extern void atrx8p2_tgi[];
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extern void atrx9_tgi[];
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extern void atrx9p2_tgi[];
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extern void atrx10_tgi[];
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extern void atrx10p2_tgi[];
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extern void atrx11_tgi[];
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extern void atrx14_tgi[];
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extern void atrx15_tgi[];
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extern void atrx15p2_tgi[];
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#endif
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/*****************************************************************************/
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/* get_ostype return value defines (for explanation, see ostype.s) */
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/*****************************************************************************/
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/* masks */
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#define AT_OS_TYPE_MAIN 7
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#define AT_OS_TYPE_MINOR (7 << 3)
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/* AT_OS_TYPE_MAIN values */
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#define AT_OS_UNKNOWN 0
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#define AT_OS_400800 1
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#define AT_OS_1200XL 2
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#define AT_OS_XLXE 3
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/* AS_OS_TYPE_MINOR values */
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/* for 400/800 remember this are the ROM versions */
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/* to check whether the hw is PAL or NTSC, use get_tv() */
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#define AT_OS_400800PAL_A 1
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#define AT_OS_400800PAL_B 2
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#define AT_OS_400800NTSC_A 1
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#define AT_OS_400800NTSC_B 2
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#define AT_OS_1200_10 1
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#define AT_OS_1200_11 2
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#define AT_OS_XLXE_1 1
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#define AT_OS_XLXE_2 2
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#define AT_OS_XLXE_3 3
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#define AT_OS_XLXE_4 4
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/*****************************************************************************/
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/* get_tv return values */
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/*****************************************************************************/
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#define AT_NTSC 0
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#define AT_PAL 1
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/*****************************************************************************/
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/* valid _dos_type values */
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/*****************************************************************************/
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#define SPARTADOS 0
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#define REALDOS 1
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#define BWDOS 2
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#define OSADOS 3
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#define XDOS 4
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#define ATARIDOS 5
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#define MYDOS 6
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#define NODOS 255
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/*****************************************************************************/
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/* Define hardware and where they're mapped in memory */
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/*****************************************************************************/
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#include <_atarios.h>
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#define OS (*(struct __os*)0x0000)
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#define BASIC (*(struct __basic*)0x0080)
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#include <_gtia.h>
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#define GTIA_READ (*(struct __gtia_read*)0xD000)
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#define GTIA_WRITE (*(struct __gtia_write*)0xD000)
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#include <_pbi.h>
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#include <_pokey.h>
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#define POKEY_READ (*(struct __pokey_read*)0xD200)
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#define POKEY_WRITE (*(struct __pokey_write*)0xD200)
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#include <_pia.h>
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#define PIA (*(struct __pia*)0xD300)
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#include <_antic.h>
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#define ANTIC (*(struct __antic*)0xD400)
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/*****************************************************************************/
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/* conio and TGI color defines */
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/*****************************************************************************/
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/* Note that the conio color implementation is monochrome
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** (textcolor just sets text brightness low or high, depending on background
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** color)
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** These values can be used with bordercolor(), bgcolor(), and _setcolor_low()
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*/
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#define COLOR_BLACK GTIA_COLOR_BLACK
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#define COLOR_WHITE GTIA_COLOR_WHITE
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#define COLOR_RED GTIA_COLOR_RED
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#define COLOR_CYAN GTIA_COLOR_CYAN
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#define COLOR_PURPLE GTIA_COLOR_VIOLET
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#define COLOR_GREEN GTIA_COLOR_GREEN
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#define COLOR_BLUE GTIA_COLOR_BLUE
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#define COLOR_YELLOW GTIA_COLOR_YELLOW
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#define COLOR_ORANGE GTIA_COLOR_ORANGE
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#define COLOR_BROWN GTIA_COLOR_BROWN
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#define COLOR_LIGHTRED GTIA_COLOR_LIGHTRED
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#define COLOR_GRAY1 GTIA_COLOR_GRAY1
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#define COLOR_GRAY2 GTIA_COLOR_GRAY2
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#define COLOR_LIGHTGREEN GTIA_COLOR_LIGHTGREEN
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#define COLOR_LIGHTBLUE GTIA_COLOR_LIGHTBLUE
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#define COLOR_GRAY3 GTIA_COLOR_GRAY3
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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_PURPLE COLOR_PURPLE
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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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/* PIA PORTA and PORTB register bits */
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/*****************************************************************************/
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/* See also: "JOY_xxx_MASK" in "atari.h" */
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/* Paddle 0-3 triggers (per PORTA bits) */
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#define PORTA_PTRIG3 0x80
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#define PORTA_PTRIG2 0x40
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#define PORTA_PTRIG1 0x08
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#define PORTA_PTRIG0 0x04
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/* On the Atari 400/800, PORTB is the same as PORTA, but for controller ports 3 & 4. */
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/* Paddle 4-7 triggers (per PORTB bits); only 400/800 had four controller ports */
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#define PORTB_PTRIG7 0x80
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#define PORTB_PTRIG6 0x40
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#define PORTB_PTRIG5 0x08
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#define PORTB_PTRIG4 0x04
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/* On the XL series of computers, PORTB has been changed to a memory and
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** LED control (1200XL model only) register (read/write):
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*/
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/* If set, the built-in OS is enabled, and occupies the address range $C000-$FFFF
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** (except that the area $D000-$D7FF will only access the hardware registers.)
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** If clear, RAM is enabled in this area (again, save for the hole.)
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*/
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#define PORTB_OSROM 0x01
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/* If set, RAM is enabled for the address range $A000-$BFFF.
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** If clear, the built-in BASIC ROM is enabled at this address.
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** And if there is a cartridge installed in the computer, it makes no difference.
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*/
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#define PORTB_BASICROM 0x02
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/* If set, the corresponding LED is turned off. If clear, the LED will be on.
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** (1200XL only)
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*/
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#define PORTB_LED1 0x04
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#define PORTB_LED2 0x08
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/* On the XE series of computers, PORTB is a bank-selected memory control register (read/write): */
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/* These bits determine which memory bank is visible to the CPU and/or ANTIC chip
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** when their Bank Switch bit is set. There are four possible banks of 16KB each.
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*/
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#define PORTB_BANKSELECT1 0x00
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#define PORTB_BANKSELECT2 0x04
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#define PORTB_BANKSELECT3 0x08
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#define PORTB_BANKSELECT4 0x0C
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/* If set, the CPU and/or ANTIC chip will access bank-switched memory mapped to the
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** address range $4000-$7FFF.
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** If clear, the CPU and/or ANTIC will see normal memory in this region.
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*/
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#define PORTB_BANKSWITCH_CPU 0x10
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#define PORTB_BANKSWITCH_ANTIC 0x20
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/* If set, RAM is enabled for the address range $5000-$57FF.
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** If clear, the self-test ROM (physically located at $D000-$D7FF, under the hardware registers)
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** is remapped to this memory area.
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*/
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#define PORTB_SELFTEST 0x80
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/*****************************************************************************/
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/* PACTL and PBCTL register bits */
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/*****************************************************************************/
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/* (W) Peripheral PA1/PB1 interrupt (IRQ) ("peripheral proceed line available") enable.
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** One equals enable. Set by the OS but available to the user; reset on powerup.
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** (PxCTL_IRQ_STATUS (R) bit will get set upon interrupt occurance)
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*/
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#define PxCTL_IRQ_ENABLE 0x01 /* bit 0 */
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/* Note: Bit 1 is always set to */
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/* (W) Controls PORTA/PORTB addressing
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** 1 = PORTA/PORTB register; read/write to controller port
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** 0 = direction control register; write to direction controls
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** (allows setting data flow; write 0s & 1s to PORTA/PORTB bits
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** to set which port's pins are read (input), or write (output),
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** respectively)
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*/
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#define PxCTL_ADDRESSING 0x04 /* bit 2 */
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/* (W) Peripheral motor control line; Turn the cassette on or off
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** (PACTL-specific register bit)
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** 0 = on
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** 1 = off
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*/
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#define PACTL_MOTOR_CONTROL 0x08 /* bit 3 */
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/* Peripheral command identification (serial bus command line)
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** (PBCTL-specific register bit)
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*/
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#define PBCTL_PERIPH_CMD_IDENT 0x08 /* bit 3 */
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/* Note: Bits 4 & 5 are always set to 1 */
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/* Note: Bit 6 is always set to 0 */
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/* (R) Peripheral interrupt (IRQ) status bit.
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** Set by Peripherals (PORTA / PORTB). Reset by reading from PORTA / PORTB.
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** PACTL's is interrupt status of PROCEED
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** PBCTL's is interrupt status of SIO
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*/
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#define PxCTL_IRQ_STATUS 0x80
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/* The following #define will cause the matching function calls in conio.h
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** to be overlaid by macros with the same names, saving the function call
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** overhead.
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*/
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#define _textcolor(color) COLOR_WHITE
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/* End of atari.h */
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#endif
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