Retro68/gcc/newlib/libc/machine/bfin/longjmp.S

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2017-04-11 21:13:36 +00:00
/*
* longjmp for the Blackfin processor
*
* Copyright (C) 2006 Analog Devices, Inc.
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#define _ASM
#define _SETJMP_H
.text;
.align 4;
.globl _longjmp;
.type _longjmp, STT_FUNC;
_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 1f;
R0 = 1;
1:
RTS;
.size _longjmp, .-_longjmp;