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- #ident "$Id: conio.c,v 1.4 2005/01/03 08:23:16 hpa Exp $"
- /* ----------------------------------------------------------------------- *
- *
- * Copyright 2001-2003 H. Peter Anvin - All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, Inc., 53 Temple Place Ste 330,
- * Boston MA 02111-1307, USA; either version 2 of the License, or
- * (at your option) any later version; incorporated herein by reference.
- *
- * ----------------------------------------------------------------------- */
-
- /*
- * conio.c
- *
- * Output to the screen
- */
-
- #include <com32.h>
- #include <stdarg.h>
-
- #define NULL ((void *)0)
-
- static inline void memset(void *buf, int ch, unsigned int len)
- {
- asm volatile("cld; rep; stosb"
- : "+D" (buf), "+c" (len) : "a" (ch) : "memory");
- }
-
- int putchar(int ch)
- {
- com32sys_t regs;
-
- memset(®s, 0, sizeof regs);
-
- if ( ch == '\n' ) {
- /* \n -> \r\n */
- putchar('\r');
- }
-
- regs.eax.b[1] = 0x02;
- regs.edx.b[0] = ch;
- __com32.cs_intcall(0x21, ®s, NULL);
-
- return ch;
- }
-
- /* Note: doesn't put '\n' like the stdc version does */
- int puts(const char *s)
- {
- int count = 0;
-
- while ( *s ) {
- putchar(*s);
- count++;
- s++;
- }
-
- return count;
- }
-