david/ipxe
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ipxe/src/arch/i386/core/dumpregs.c

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#include <stdio.h>
#include <realmode.h>
void __cdecl _dump_regs ( struct i386_all_regs *ix86 ) {
__asm__ __volatile__ (
TEXT16_CODE ( ".globl dump_regs\n\t"
"\ndump_regs:\n\t"
"pushl $_dump_regs\n\t"
"pushw %%cs\n\t"
"call prot_call\n\t"
"addr32 leal 4(%%esp), %%esp\n\t"
"ret\n\t" ) : : );
printf ( "EAX=%08lx EBX=%08lx ECX=%08lx EDX=%08lx\n"
"ESI=%08lx EDI=%08lx EBP=%08lx ESP=%08lx\n"
"CS=%04x SS=%04x DS=%04x ES=%04x FS=%04x GS=%04x\n",
ix86->regs.eax, ix86->regs.ebx, ix86->regs.ecx,
ix86->regs.edx, ix86->regs.esi, ix86->regs.edi,
ix86->regs.ebp, ix86->regs.esp,
ix86->segs.cs, ix86->segs.ss, ix86->segs.ds,
ix86->segs.es, ix86->segs.fs, ix86->segs.gs );
}