/****************************************************************************
* configs/xtrs/include/trs80-m3.h
*
* Copyright (C) 2008 Jacques Pelletier. All rights reserved.
* Author: Jacques Pelletier
*
* This file is a part of NuttX and hence
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* Information from http://www.trs-80.com */
#ifndef __TRS80_M3_H
#define __TRS80_M3_H
/* Outputs a byte to a logical device or FCB. DE = FCB and A = byte.
* Don't confuse with CTL at 0023.
*/
#define _TRS80_M3_PUT 0x001B
/* Outputs a control byte to a logical device or FCB. DE = FCB and A = control byte. */
#define _TRS80_M3_CTL 0x0023
/* Scan keyboard and return with accumulator containing result. DE is used. */
#define _TRS80_M3_KBDSCN 0x002B
/* Displays a character at current cursor location. */
#define _TRS80_M3_VDCHAR 0x0033
/* "Waits until printer is ready then prints character. A = ASCII character.
* If BREAK is pressed, a return to caller is made."
*/
#define _TRS80_M3_PRCHAR 0x003B
/* Call Input a line from the keyboard. B = max length of line. HL points at buffer.
* Buffer should be the length of B plus 1. To terminate, hit BREAK or ENTER.
* On exit, HL points at buffer and B = number of characters entered.
* Carry will be set if BREAK was pressed.
*/
#define _TRS80_M3_KBLINE 0x0040
/* "Scans the keyboard until a key is pressed. If BREAK is pressed, it is returned
* like other keys."
*/
#define _TRS80_M3_KBWAIT 0x0049
/* "Receive a character from RS-232. No entry conditions. On exit, memory location
* 16872 contains character received. DE is altered. This routine honors wait status."
*/
#define _TRS80_M3_RSRCV 0x0050
/* "Transmit character to RS-232. On entry, Accumulator or memory location 16880
* contains character. On exit, 16880 = 0 if no character sent. Wait status honored."
*/
#define _TRS80_M3_RSTX 0x0055
/* Initialize RS-232 interface. On entry, memory location 16888 = send/receive baud
* rate code, location 16890 = wait/don't wait switch, location 16889 = RS-232
* characteristics switch. On exit, DE is altered. For more detail, consult Model 3
* reference manual.
*/
#define _TRS80_M3_RSINIT 0x005A
/* This is the routine that is Basic's SET, RESET, and POINT functions. Here's how
* to use it. Load HL with return address and push. Load register A with one of the
* following: 00H = POINT, 01H = RESET, and 80H = SET. Push AF onto stack. Load A with
* X coordinate and push onto stack. Load A with Y coordinate and JP GRAPH.
*/
#define _TRS80_M3_GRAPH 0x0150
/* Clear screen. */
#define _TRS80_M3_CLS 0x01C9
/* Randomize. */
#define _TRS80_M3_RANDOM 0x01D3
/* This routine turns off the cassette drive. */
#define _TRS80_M3_CSOFF 0x01F8
#ifdef TRS80_MODEL1
/* A register contains a 0 or 1 which is the cassette number. This routine defines
* cassette number and turns on cassette. Model I only.
*/
#define _TRS80_M3_DEFCAS 0x0212
#endif /* TRS80_MODEL1 */
/* Inputs data one byte at a time from cassette after you use CSHIN. A = the data
* byte.
*/
#define _TRS80_M3_CSIN 0x0235
/* Outputs data one byte at a time to cassette after you use CSHWR. A = the
* output byte.
*/
#define _TRS80_M3_CSOUT 0x0264
/* Turns on the cassette and writes the header. */
#define _TRS80_M3_CSHWR 0x0287
/* Finds the cassette header info at the beggining of cassette file. */
#define _TRS80_M3_CSHIN 0x0296
/* Ouput character in register A; OUTSEL (409CH) selects device. See OUTSEL for
* device values.
*/
#define _TRS80_M3_OUTCHR 0x032A
/* Displays character in A on screen at next print position. Uses AF. */
#define _TRS80_M3_DISPA 0x033A
/* Calls keyboard scan routine. */
#define _TRS80_M3_keyb_scan 0x0358
/* Reads keyboard into buffer until a carriage return is entered. 40A7H contains
* the address of the buffer.
*/
#define _TRS80_M3_KIBUFF 0x0361
/* Same as KBLINE. See 0040. */
#define _TRS80_M3_KLINE 0x05D9
/* "Get date in ASCII format. Mod III TRSDOS, LDOS, & MULTIDOS." */
#define _TRS80_M3_GETDAT 0x3033
/* "Get time in ASCII format. Mod III TRSDOS, LDOS, & MULTIDOS." */
#define _TRS80_M3_GETTIM 0x3036
#endif /* __TRS80_M3_H */
