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sh-dsp REPEAT support:

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opcodes:

        * sh-opc.h (sh_nibble_type): Remove DISP_8 and DISP_4.
        Split IMM_[48]{,BY[24]} into IMM[01]_[48]{,BY[24]}.  Add REPEAT.
        (sh_arg_type): Add A_PC.
        (sh_table): Update entries using immediates.  Add repeat.
        * sh-dis.c (print_insn_shx): Remove DISP_8 and DISP_4.
        Split IMM_[48]{,BY[24]} into IMM[01]_[48]{,BY[24]}.  Add REPEAT.

gas:

        * config/tc-sh.c (immediate): Delete.
        (sh_operand_info): Add immediate member.
        (parse_reg): Use A_PC for pc.
        (parse_exp): Add second argument 'op'.  All callers changed.
        (parse_at): Expect pc to be coded as A_PC.
        Use immediate field in *op.
        (insert): Add fourth argument 'op'.  All callers changed.
        (build_relax): Add second argument 'op'.  All callers changed.
        (insert_loop_bounds): New function.
        (build_Mytes): Remove DISP_4.
        Split IMM_[48]{,BY[24]} into IMM[01]_[48]{,BY[24]}.  Add REPEAT.
        (assemble_ppi): Use immediate field in *operand.
        (sh_force_relocation): Handle BFD_RELOC_SH_LOOP_{START,END}.
        (md_apply_fix): Likewise.
        (tc_gen_reloc): Likewise.  Check for a pcrel BFD_RELOC_SH_LABEL.

include/coff:

        * sh.h (R_SH_LOOP_START, R_SH_LOOP_END): Define.

include/elf:

        * sh.h (R_SH_LOOP_START, R_SH_LOOP_END): New RELOC_NUMBERs.

bfd:

        * reloc.c (_bfd_relocate_contents): Add BFD_RELOC_SH_LOOP_START and
        BFD_RELOC_SH_LOOP_END.
        * elf32-sh.c (sh_elf_howto_tab): Change special_func to
        sh_elf_ignore_reloc for all entries that sh_elf_reloc used to ignore.
        Add entries for R_SH_LOOP_START and R_SH_LOOP_END.
        (sh_elf_reloc_loop): New function.
        (sh_elf_reloc): No need to test for always-to-be-ignored relocs
        any more.
        (sh_rel): Add entries for BFD_RELOC_SH_LOOP_{START,END}.
        (sh_elf_relocate_section): Handle BFD_RELOC_SH_LOOP_{START,END}.
        * bfd-in2.h, libbfd.h: Regenerate.
This commit is contained in:
Joern Rennecke
2000-04-05 21:23:05 +00:00
parent ff096a7c70
commit 015551fcfb
14 changed files with 429 additions and 112 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
opcodes/sh-dis.c
View File

@@ -1,5 +1,5 @@
/* Disassemble SH instructions.
Copyright (C) 1993, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
Copyright (C) 1993, 94, 95, 96, 97, 1998, 2000 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -402,16 +402,20 @@ print_insn_shx (memaddr, info)
imm |= ~0xfff;
imm = imm * 2 + 4;
goto ok;
case IMM_4:
case IMM0_4:
case IMM1_4:
imm = nibs[3];
goto ok;
case IMM_4BY2:
case IMM0_4BY2:
case IMM1_4BY2:
imm = nibs[3] <<1;
goto ok;
case IMM_4BY4:
case IMM0_4BY4:
case IMM1_4BY4:
imm = nibs[3] <<2;
goto ok;
case IMM_8:
case IMM0_8:
case IMM1_8:
imm = (nibs[2] << 4) | nibs[3];
goto ok;
case PCRELIMM_8BY2:
@@ -422,18 +426,14 @@ print_insn_shx (memaddr, info)
imm = ((nibs[2] << 4) | nibs[3]) <<2;
relmask = ~ (bfd_vma) 3;
goto ok;
case IMM_8BY2:
case IMM0_8BY2:
case IMM1_8BY2:
imm = ((nibs[2] << 4) | nibs[3]) <<1;
goto ok;
case IMM_8BY4:
case IMM0_8BY4:
case IMM1_8BY4:
imm = ((nibs[2] << 4) | nibs[3]) <<2;
goto ok;
case DISP_8:
imm = (nibs[2] << 4) | (nibs[3]);
goto ok;
case DISP_4:
imm = nibs[3];
goto ok;
case REG_N:
rn = nibs[n];
break;
@@ -456,6 +456,7 @@ print_insn_shx (memaddr, info)
rn |= (rn & 2) << 1;
break;
case PPI:
case REPEAT:
goto fail;
default:
abort();