693d05b755
* Add gitattributes to handle line endings. * Import the unmodified LTEMM source. From https://www.lo-tech.co.uk/wiki/LTEMM.EXE. * Add DOSBox and TASM for build. * Add build script for LTEMM. * Modity LTEMM driver for XTMax. * Import the unmodified SDPP source. From https://forum.vcfed.org/index.php?threads/sd-card-to-parallel-port-driver-for-msdos-ver-1-1.42008/. * Add Borland C++ 3.1 (Minimal) for build. * Add build script for SDPP. * Modify SDPP driver for XTMax. * Commit pre-built binaries for LTEMM and SDPP. * Reorganize the drivers into a new folder.
107 lines
4.5 KiB
C
107 lines
4.5 KiB
C
/* standard.h - standard, project wide, declarations */
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/* */
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/* Copyright (C) 1994 by Robert Armstrong */
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/* */
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/* This program is free software; you can redistribute it and/or modify */
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/* it under the terms of the GNU General Public License as published by */
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/* the Free Software Foundation; either version 2 of the License, or */
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/* (at your option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but */
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/* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANT- */
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/* ABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General */
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/* Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public License */
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/* along with this program; if not, visit the website of the Free */
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/* Software Foundation, Inc., www.gnu.org. */
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/* Datatypes of a known size ... */
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typedef unsigned char BYTE; /* 8 bits, unsigned */
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typedef unsigned short WORD; /* 16 " " */
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#ifndef DEFINEDLONG
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#define DEFINEDLONG
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typedef unsigned long LONG; /* 32 " " */
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#endif
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/* The BOOLEAN type and associated constants ... */
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typedef unsigned char BOOLEAN;/* any TRUE/FALSE result */
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#define FALSE (0) /* logical falsity */
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#define TRUE (~FALSE)/* if it's not FALSE, it's ... */
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/* This magic declaration modifier will make the symbol defined be */
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/* invisible to the linker. For example, "PRIVATE int foo;" or even */
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/* "PRIVATE void fred () { ...}". This is used extensively to restrict */
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/* the scope of a global declaration to the current module. */
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#define PRIVATE static /* this works for most compilers! */
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/* And this magic declaration modifier guarantees that the symbol so */
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/* defined will be visible to other modules. It is the opposite of */
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/* "PRIVATE". In C this is the default condition anyway, so this macro */
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/* mostly serves as documentation. */
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#define PUBLIC /* this is the way things are anyway */
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/* Extract the high and low bytes of a 16 bit value... */
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#define HIGH(x) (((x) >> 8) & 0xFF)
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#define LOW(x) ((x) & 0xFF)
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/* Test a value for odd/even... */
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#define ODD(x) (((x) & 1) != 0)
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/* These macros provide access to specific 8088 family hardware ins- */
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/* tructions. From a performance viewpoint, it is highly desirable that */
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/* these macros not be implemented by subroutine calls, but rather that */
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/* they expand directly to inline assembler instructions. */
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#ifdef __TURBOC__
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/* These macros turn the interrupt system on and off. They should */
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/* generate the STI (0xFB) and CLI (0xFA) instructions... */
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#define INT_ON asm sti
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#define INT_OFF asm cli
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/* These macros read and write a bytes from an I/O port. They should */
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/* generate the 0xE5 (IN AL,DX) or 0xEE (OUT DX,AL) instructions... */
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#define INBYTE(p,v) { _DX = (p); asm IN AL,DX; v = _AL; }
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#define OUTBYTE(p,v) { _DX = (p); _AL = (v); asm OUT DX,AL; }
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/* These macros will set or clear specific bit(s) in an I/O port. */
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/* They work by first reading the port, seting or clearing the bit(s), */
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/* and then writing the port. Needless to say, they can only be used */
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/* on ports that can safely be both read and written! */
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#define IOSETBIT(p,m) { _DX = (p); _BL = (m); \
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asm IN AL,DX; asm OR AL,BL; asm OUT DX,AL; }
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#define IOCLRBIT(p,m) { _DX = (p); _BL = ~(m); \
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asm IN AL,DX; asm AND AL,BL; asm OUT DX,AL; }
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/* These macros use the DOS INT 21H functions to get and set the */
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/* contents of interrupt vectors. They are used to save and restore */
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/* the serial port interrupt service routine... */
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#define GETVECTOR(v,a) { _AL = (v); _AH = 0x35; asm INT 0x21; \
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asm MOV WORD PTR a, BX; asm MOV WORD PTR a+2, ES; }
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#define SETVECTOR(v,a) { _AL = (v); _AH = 0x25; asm PUSH DS; \
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asm LDS DX, DWORD PTR a; \
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asm INT 0x21; asm POP DS; }
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#define JMPVECTOR(a) { asm JMP DWORD PTR a; }
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/* Compute dst += src with end-around carry, just like the TU58 does... */
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#define ADC(dst,src) { asm MOV AX, dst; asm ADD AX, src; \
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asm ADC AX, 0; asm MOV dst, AX; }
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#endif /* ifdef __TURBOC__ */
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/* Debugging output routines... */
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void outchr (char);
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void outstr (char *);
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void outdec (int);
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void outhex (unsigned, int);
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void outcrlf (void);
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void cprintf (char near *, ...);
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