gdb/gdb/arm-tdep.c

313       unsigned short insn = read_memory_unsigned_integer (current_pc, 2);
315       if ((insn & 0xfe00) == 0xb400)		/* push { rlist } */
319       else if ((insn & 0xff00) == 0xb000)	/* add sp, #simm  OR
327       else if ((insn & 0xff00) == 0xaf00)	/* add r7, sp, #imm */
331       else if (insn == 0x466f)			/* mov r7, sp */
363    sub fp, ip, #nn @@ nn == 20 or 4 depending on second insn */
534       unsigned short insn;
538       insn = read_memory_unsigned_integer (current_pc, 2);
540       if ((insn & 0xfe00) == 0xb400)	/* push { rlist } */
546 	  mask = (insn & 0xff) | ((insn & 0x100) << 6);
558       else if ((insn & 0xff00) == 0xb000)	/* add sp, #simm  OR
566 	  offset = (insn & 0x7f) << 2;		/* get scaled offset */
567 	  if (insn & 0x80)		/* is it signed? (==subtracting) */
574       else if ((insn & 0xff00) == 0xaf00)	/* add r7, sp, #imm */
579 	  cache->frameoffset = (insn & 0xff) << 2;
581       else if (insn == 0x466f)			/* mov r7, sp */
588       else if ((insn & 0xffc0) == 0x4640)	/* mov r0-r7, r8-r15 */
590 	  int lo_reg = insn & 7;		/* dest.  register (r0-r7) */
591 	  int hi_reg = ((insn >> 3) & 7) + 8;	/* source register (r8-15) */
763      if we don't see this as the first insn, we will stop.
779       unsigned int insn = read_memory_unsigned_integer (current_pc, 4);
781       if (insn == 0xe1a0c00d)		/* mov ip, sp */
786       else if ((insn & 0xfffff000) == 0xe28dc000) /* add ip, sp #n */
788 	  unsigned imm = insn & 0xff;                   /* immediate value */
789 	  unsigned rot = (insn & 0xf00) >> 7;           /* rotate amount */
794       else if ((insn & 0xfffff000) == 0xe24dc000) /* sub ip, sp #n */
796 	  unsigned imm = insn & 0xff;                   /* immediate value */
797 	  unsigned rot = (insn & 0xf00) >> 7;           /* rotate amount */
802       else if (insn == 0xe52de004)	/* str lr, [sp, #-4]! */
808       else if ((insn & 0xffff0000) == 0xe92d0000)
813 	  int mask = insn & 0xffff;
823       else if ((insn & 0xffffc000) == 0xe54b0000 ||	/* strb rx,[r11,#-n] */
824 	       (insn & 0xffffc0f0) == 0xe14b00b0 ||	/* strh rx,[r11,#-n] */
825 	       (insn & 0xffffc000) == 0xe50b0000)	/* str  rx,[r11,#-n] */
830       else if ((insn & 0xffffc000) == 0xe5cd0000 ||	/* strb rx,[sp,#n] */
831 	       (insn & 0xffffc0f0) == 0xe1cd00b0 ||	/* strh rx,[sp,#n] */
832 	       (insn & 0xffffc000) == 0xe58d0000)	/* str  rx,[sp,#n] */
837       else if ((insn & 0xfffff000) == 0xe24cb000)	/* sub fp, ip #n */
839 	  unsigned imm = insn & 0xff;			/* immediate value */
840 	  unsigned rot = (insn & 0xf00) >> 7;		/* rotate amount */
845       else if ((insn & 0xfffff000) == 0xe24dd000)	/* sub sp, sp #n */
847 	  unsigned imm = insn & 0xff;			/* immediate value */
848 	  unsigned rot = (insn & 0xf00) >> 7;		/* rotate amount */
852       else if ((insn & 0xffff7fff) == 0xed6d0103)	/* stfe f?, [sp, -#c]! */
855 	  regno = ARM_F0_REGNUM + ((insn >> 12) & 0x07);
858       else if ((insn & 0xffbf0fff) == 0xec2d0200)	/* sfmfd f0, 4, [sp!] */
863 	  if ((insn & 0x800) == 0x800)		/* N0 is set */
865 	      if ((insn & 0x40000) == 0x40000)	/* N1 is set */
872 	      if ((insn & 0x40000) == 0x40000)	/* N1 is set */
878 	  fp_start_reg = ARM_F0_REGNUM + ((insn >> 12) & 0x7);
886       else if ((insn & 0xf0000000) != 0xe0000000)
888       else if ((insn & 0xfe200000) == 0xe8200000)	/* ldm? */
2889   /* Sync the opcode insn printer with our register viewer.  */