From: Andrew Cagney <ac131313@ges.redhat.com>
To: Daniel Jacobowitz <drow@mvista.com>
Cc: Nick Clifton <nickc@redhat.com>,
Hans-Peter Nilsson <hp@bitrange.com>,
gdb-patches@sources.redhat.com
Subject: Re: v850 sim noncompile (was: Re: Add v850 linker relaxation)
Date: Thu, 19 Sep 2002 08:15:00 -0000 [thread overview]
Message-ID: <3D89E9EE.9020902@ges.redhat.com> (raw)
In-Reply-To: <20020919145121.GA19937@nevyn.them.org>
>
> Andrew, Nick is perfectly correct:
> 2002-08-28 Catherine Moore <clm@redhat.com>
>
> * elf32-v850.c (v850_elf_reloc_map): Add new relocs.
> (v850-elf-reloc): Don't resolve pc relative relocs.
> (v850_elf_ignore_reloc): New routine.
> (v850_elf_final_link_relocate): Handle new relocs.
> (v850_elf_relax_delete_bytes ): New routine.
> (v850_elf_relax_section): New routine.
> (bfd_elf32_bfd_relax_section): Define.
> (HOWTO): New entries for new relocs.
> * reloc.c (BFD_RELOC_V850_LONGCALL): New reloc.
> (BFD_RELOC_V850_LONGJUMP): New reloc.
> (BFD_RELOC_V850_ALIGN): New reloc.
> * archures.c: Remove redundant v850ea architecture.
> * cpu-v850.c: Remove redundant v850ea support.
> * libbfd.h: Regenerate.
> * bfd-in2.h: Regenerated.
The patch doesn't so much remove left over redundancy as delete an
entire ISA:
-
- // DIVHN
- rrrrr,111111,RRRRR + wwwww,01010,iiii,00:XI:::divhn
- *v850ea
- "divhn <imm5>, r<reg1>, r<reg2>, r<reg3>"
- {
- signed32 quotient;
- signed32 remainder;
- signed32 divide_by;
- signed32 divide_this;
- boolean overflow = false;
- SAVE_2;
-
- trace_input ("divhn", OP_IMM_REG_REG_REG, 0);
-
- divide_by = EXTEND16 (State.regs[ reg1 ]);
- divide_this = State.regs[ reg2 ];
-
- divn (imm5, divide_by, divide_this, & quotient, & remainder, &
overflow);
-
- State.regs[ reg2 ] = quotient;
- State.regs[ reg3 ] = remainder;
-
- /* Set condition codes. */
- PSW &= ~(PSW_Z | PSW_S | PSW_OV);
-
- if (overflow) PSW |= PSW_OV;
- if (quotient == 0) PSW |= PSW_Z;
- if (quotient < 0) PSW |= PSW_S;
-
- trace_output (OP_IMM_REG_REG_REG);
- }
-
Andrew
next prev parent reply other threads:[~2002-09-19 15:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.BSF.4.44.0209181811090.78869-100000@dair.pair.com>
2002-09-19 0:50 ` Nick Clifton
2002-09-19 7:47 ` Andrew Cagney
2002-09-19 7:51 ` Daniel Jacobowitz
2002-09-19 8:15 ` Andrew Cagney [this message]
2002-09-19 9:26 ` Nick Clifton
2002-09-19 12:10 ` Andrew Cagney
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