uclibc-ng/libc/sysdeps/linux/bfin/bsd-_setjmp.S

/* Copyright (C) 2002, David McCullough <davidm@snapgear.com> */
/* This file is released under the LGPL, any version you like */

#define _ASM
#define _SETJMP_H
#include <bits/setjmp.h>

.globl _setjmp;
.align 4;

_setjmp:
	[--SP] = P0;	// Save P0
	P0 = R0;
	R0 = [SP++];
	[P0 + 0x00] = R0;	// Save saved P0
	[P0 + 0x04] = P1;
	[P0 + 0x08] = P2;
	[P0 + 0x0C] = P3;
	[P0 + 0x10] = P4;
	[P0 + 0x14] = P5;

	[P0 + 0x18] = FP;	// Frame Pointer
	[P0 + 0x1C] = SP;	// Stack Pointer

	[P0 + 0x20] = P0;	// Data Registers
	[P0 + 0x24] = R1;
	[P0 + 0x28] = R2;
	[P0 + 0x2C] = R3;
	[P0 + 0x30] = R4;
	[P0 + 0x34] = R5;
	[P0 + 0x38] = R6;
	[P0 + 0x3C] = R7;

	R0 = ASTAT;
	[P0 + 0x40] = R0;

	R0 = LC0;		// Loop Counters
	[P0 + 0x44] = R0;
	R0 = LC1;
	[P0 + 0x48] = R0;

	R0 = A0.W;		// Accumulators
	[P0 + 0x4C] = R0;
	R0 = A0.X;
	[P0 + 0x50] = R0;
	R0 = A1.W;
	[P0 + 0x54] = R0;
	R0 = A1.X;
	[P0 + 0x58] = R0;

	R0 = I0;		// Index Registers
	[P0 + 0x5C] = R0;
	R0 = I1;
	[P0 + 0x60] = R0;
	R0 = I2;
	[P0 + 0x64] = R0;
	R0 = I3;
	[P0 + 0x68] = R0;

	R0 = M0;		// Modifier Registers
	[P0 + 0x6C] = R0;
	R0 = M1;
	[P0 + 0x70] = R0;
	R0 = M2;
	[P0 + 0x74] = R0;
	R0 = M3;
	[P0 + 0x78] = R0;

	R0 = L0;		// Length Registers
	[P0 + 0x7c] = R0;
	R0 = L1;
	[P0 + 0x80] = R0;
	R0 = L2;
	[P0 + 0x84] = R0;
	R0 = L3;
	[P0 + 0x88] = R0;

	R0 = B0;		// Base Registers
	[P0 + 0x8C] = R0;
	R0 = B1;
	[P0 + 0x90] = R0;
	R0 = B2;
	[P0 + 0x94] = R0;
	R0 = B3;
	[P0 + 0x98] = R0;

	R0 = RETS;
	[P0 + 0x9C] = R0;

	R0 = [P0 + 0x20];
	R0 = 0;

	RTS;
_setjmp.end: