| /* 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; |
| } |