LXR uboot/examples/standalone/ppc

   1/* setjmp for PowerPC.
   2   Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
   3   This file is part of the GNU C Library.
   4
   5 * SPDX-License-Identifier:     LGPL-2.1+
   6 */
   7
   8#include <ppc_asm.tmpl>
   9
  10# define JB_GPR1   0  /* Also known as the stack pointer */
  11# define JB_GPR2   1
  12# define JB_LR     2  /* The address we will return to */
  13# define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18 in total */
  14# define JB_CR     21 /* Condition code registers. */
  15# define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total */
  16# define JB_SIZE   (58*4)
  17
  18#define FP(x...) x
  19
  20.globl      setctxsp;
  21setctxsp:
  22        mr  r1, r3
  23        blr
  24
  25.globl      ppc_setjmp;
  26ppc_setjmp:
  27        stw  r1,(JB_GPR1*4)(3)
  28        mflr r0
  29        stw  r2,(JB_GPR2*4)(3)
  30        stw  r14,((JB_GPRS+0)*4)(3)
  31FP(     stfd 14,((JB_FPRS+0*2)*4)(3))
  32        stw  r0,(JB_LR*4)(3)
  33        stw  r15,((JB_GPRS+1)*4)(3)
  34FP(     stfd 15,((JB_FPRS+1*2)*4)(3))
  35        mfcr r0
  36        stw  r16,((JB_GPRS+2)*4)(3)
  37FP(     stfd 16,((JB_FPRS+2*2)*4)(3))
  38        stw  r0,(JB_CR*4)(3)
  39        stw  r17,((JB_GPRS+3)*4)(3)
  40FP(     stfd 17,((JB_FPRS+3*2)*4)(3))
  41        stw  r18,((JB_GPRS+4)*4)(3)
  42FP(     stfd 18,((JB_FPRS+4*2)*4)(3))
  43        stw  r19,((JB_GPRS+5)*4)(3)
  44FP(     stfd 19,((JB_FPRS+5*2)*4)(3))
  45        stw  r20,((JB_GPRS+6)*4)(3)
  46FP(     stfd 20,((JB_FPRS+6*2)*4)(3))
  47        stw  r21,((JB_GPRS+7)*4)(3)
  48FP(     stfd 21,((JB_FPRS+7*2)*4)(3))
  49        stw  r22,((JB_GPRS+8)*4)(3)
  50FP(     stfd 22,((JB_FPRS+8*2)*4)(3))
  51        stw  r23,((JB_GPRS+9)*4)(3)
  52FP(     stfd 23,((JB_FPRS+9*2)*4)(3))
  53        stw  r24,((JB_GPRS+10)*4)(3)
  54FP(     stfd 24,((JB_FPRS+10*2)*4)(3))
  55        stw  r25,((JB_GPRS+11)*4)(3)
  56FP(     stfd 25,((JB_FPRS+11*2)*4)(3))
  57        stw  r26,((JB_GPRS+12)*4)(3)
  58FP(     stfd 26,((JB_FPRS+12*2)*4)(3))
  59        stw  r27,((JB_GPRS+13)*4)(3)
  60FP(     stfd 27,((JB_FPRS+13*2)*4)(3))
  61        stw  r28,((JB_GPRS+14)*4)(3)
  62FP(     stfd 28,((JB_FPRS+14*2)*4)(3))
  63        stw  r29,((JB_GPRS+15)*4)(3)
  64FP(     stfd 29,((JB_FPRS+15*2)*4)(3))
  65        stw  r30,((JB_GPRS+16)*4)(3)
  66FP(     stfd 30,((JB_FPRS+16*2)*4)(3))
  67        stw  r31,((JB_GPRS+17)*4)(3)
  68FP(     stfd 31,((JB_FPRS+17*2)*4)(3))
  69
  70        li 3, 0
  71        blr
  72