File:  [Qemu by Fabrice Bellard] / qemu / roms / ipxe / src / arch / i386 / include / bochs.h
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:58:23 2018 UTC (8 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1101, qemu1001, qemu1000, qemu0151, HEAD
qemu 0.15.1

#ifndef BOCHS_H
#define BOCHS_H

/** @file
 *
 * bochs breakpoints
 *
 * This file defines @c bochsbp, the magic breakpoint instruction that
 * is incredibly useful when debugging under bochs.  This file should
 * never be included in production code.
 *
 * Use the pseudo-instruction @c bochsbp in assembly code, or the
 * bochsbp() function in C code.
 *
 */

#ifdef ASSEMBLY

/* Breakpoint for when debugging under bochs */
#define bochsbp xchgw %bx, %bx
#define BOCHSBP bochsbp

#else /* ASSEMBLY */

/** Breakpoint for when debugging under bochs */
static inline void bochsbp ( void ) {
	__asm__ __volatile__ ( "xchgw %bx, %bx" );
}

#endif /* ASSEMBLY */

#warning "bochs.h should not be included into production code"

#endif /* BOCHS_H */

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