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- #ident "$Id: hello.c,v 1.6 2005/01/03 08:23:16 hpa Exp $"
- /* ----------------------------------------------------------------------- *
- *
- * Copyright 2002 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.
- *
- * ----------------------------------------------------------------------- */
-
- /*
- * hello.c
- *
- * Simple COM32 image
- */
-
- #include <com32.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 __start(void)
- {
- const char *msg = "Hello, World!\r\n";
- com32sys_t inreg;
- const char *p;
-
- memset(&inreg, 0, sizeof inreg);
-
- for ( p = msg ; *p ; p++ ) {
- inreg.edx.b[0] = *p;
- inreg.eax.b[1] = 0x02; /* Write Character */
- __com32.cs_intcall(0x21, &inreg, NULL);
- }
-
- return 0;
- }
-