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/* setjmp for the Blackfin project
*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
* Copyright (C) 2003 Metrowerks
* Based on code from Analog Devices.
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <setjmp.h>
#undef setjmp
int setjmp(jmp_buf env)
{
__asm__ __volatile__(
"[--SP] = p0;\n\t"
"p0 = r0;\n\t"
"r0 = [SP++];\n\t"
"[p0++] = r0;\n\t" /* GP address registers */
"[p0++] = p1;\n\t"
"[p0++] = p2;\n\t"
"[p0++] = p3;\n\t"
"[p0++] = p4;\n\t"
"[p0++] = p5;\n\t"
"[p0++] = FP;\n\t" /* frame pointer */
"[p0++] = SP;\n\t" /* stack pointer */
"[p0++] = p0;\n\t" /* data regs */
"[p0++] = r1;\n\t"
"[p0++] = r2;\n\t"
"[p0++] = r3;\n\t"
"[p0++] = r4;\n\t"
"[p0++] = r5;\n\t"
"[p0++] = r6;\n\t"
"[p0++] = r7;\n\t"
"r0 = ASTAT;\n\t"
"[p0++] = r0;\n\t"
"r0 = LC0;\n\t" /* loop counters */
"[p0++] = r0;\n\t"
"r0 = LC1;\n\t"
"[p0++] = r0;\n\t"
"r0 = A0.w;\n\t"
"[p0++] = r0;\n\t"
"r0.l = A0.x;\n\t"
"[p0++] = r0;\n\t"
"r0 = A1.w;\n\t"
"[p0++] = r0;\n\t"
"r0.l = A1.x;\n\t"
"[p0++] = r0;\n\t"
/* Dag regs */
"r0 = i0;\n\t" /* index registers */
"[p0++] = r0;\n\t"
"r0 = i1;\n\t"
"[p0++] = r0;\n\t"
"r0 = i2;\n\t"
"[p0++] = r0;\n\t"
"r0 = i3;\n\t"
"[p0++] = r0;\n\t"
"r0 = m0;\n\t" /* modifier registers */
"[p0++] = r0;\n\t"
"r0 = m1;\n\t"
"[p0++] = r0;\n\t"
"r0 = m2;\n\t"
"[p0++] = r0;\n\t"
"r0 = m3;\n\t"
"[p0++] = r0;\n\t"
"r0 = l0;\n\t" /* length registers */
"[p0++] = r0;\n\t"
"r0 = l1;\n\t"
"[p0++] = r0;\n\t"
"r0 = l2;\n\t"
"[p0++] = r0;\n\t"
"r0 = l3;\n\t"
"[p0++] = r0;\n\t"
"r0 = b0;\n\t" /* base registers */
"[p0++] = r0;\n\t"
"r0 = b1;\n\t"
"[p0++] = r0;\n\t"
"r0 = b2;\n\t"
"[p0++] = r0;\n\t"
"r0 = b3;\n\t"
"[p0++] = r0;\n\t"
"r0 = RETS;\n\t" /* store return address */
"[p0++] = r0;\n\t"
"r0 = 0;\n\t"
:
:
);
return 0;
}
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