/* 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; }