From 05d9958f685e3f0c51be4f1128348645451e51fb Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Tue, 21 Dec 2004 08:35:58 +0000 Subject: Add support for the Analog Devices Blackfin mmuless processor --- libc/sysdeps/linux/bfin/__longjmp.S | 110 ++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 libc/sysdeps/linux/bfin/__longjmp.S (limited to 'libc/sysdeps/linux/bfin/__longjmp.S') diff --git a/libc/sysdeps/linux/bfin/__longjmp.S b/libc/sysdeps/linux/bfin/__longjmp.S new file mode 100644 index 000000000..4c5189976 --- /dev/null +++ b/libc/sysdeps/linux/bfin/__longjmp.S @@ -0,0 +1,110 @@ +/* + * longjmp for the Blackfin project + * + * Copyright (C) 2004, + * Based on code from Analog Devices. + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + * + */ +#include +#define _SETJMP_H +#define _ASM +#include + +.globl ___longjmp; +.align 4; + +___longjmp: + P0 = R0; + R0 = [P0 + 0x00]; + [--SP] = R0; // Put P0 on the stack + + P1 = [P0 + 0x04]; + P2 = [P0 + 0x08]; + P3 = [P0 + 0x0C]; + P4 = [P0 + 0x10]; + P5 = [P0 + 0x14]; + + FP = [P0 + 0x18]; + R0 = [SP++]; // Grab P0 from old stack + SP = [P0 + 0x1C]; // Update Stack Pointer + [--SP] = R0; // Put P0 on new stack + [--SP] = R1; // Put VAL arg on new stack + + R0 = [P0 + 0x20]; // Data Registers + R1 = [P0 + 0x24]; + R2 = [P0 + 0x28]; + R3 = [P0 + 0x2C]; + R4 = [P0 + 0x30]; + R5 = [P0 + 0x34]; + R6 = [P0 + 0x38]; + R7 = [P0 + 0x3C]; + + R0 = [P0 + 0x40]; + ASTAT = R0; + + R0 = [P0 + 0x44]; // Loop Counters + LC0 = R0; + R0 = [P0 + 0x48]; + LC1 = R0; + + R0 = [P0 + 0x4C]; // Accumulators + A0.W = R0; + R0 = [P0 + 0x50]; + A0.X = R0; + R0 = [P0 + 0x54]; + A1.W = R0; + R0 = [P0 + 0x58]; + A1.X = R0; + + R0 = [P0 + 0x5C]; // Index Registers + I0 = R0; + R0 = [P0 + 0x60]; + I1 = R0; + R0 = [P0 + 0x64]; + I2 = R0; + R0 = [P0 + 0x68]; + I3 = R0; + + R0 = [P0 + 0x6C]; // Modifier Registers + M0 = R0; + R0 = [P0 + 0x70]; + M1 = R0; + R0 = [P0 + 0x74]; + M2 = R0; + R0 = [P0 + 0x78]; + M3 = R0; + + R0 = [P0 + 0x7C]; // Length Registers + L0 = R0; + R0 = [P0 + 0x80]; + L1 = R0; + R0 = [P0 + 0x84]; + L2 = R0; + R0 = [P0 + 0x88]; + L3 = R0; + + R0 = [P0 + 0x8C]; // Base Registers + B0 = R0; + R0 = [P0 + 0x90]; + B1 = R0; + R0 = [P0 + 0x94]; + B2 = R0; + R0 = [P0 + 0x98]; + B3 = R0; + + R0 = [P0 + 0x9C]; // Return Address (PC) + RETS = R0; + + R0 = [SP++]; + P0 = [SP++]; + + CC = R0 == 0; + IF !CC JUMP finished; + R0 = 1; +finished: + RTS; +___longjmp.end: -- cgit v1.2.3