diff options
| author | James Bowman <jamesb@excamera.com> | 2017-10-12 18:37:40 -0700 |
|---|---|---|
| committer | James Bowman <jamesb@excamera.com> | 2017-10-12 18:41:29 -0700 |
| commit | 3b4b0a629a972bf80fc0ac6202f89681fab1df37 (patch) | |
| tree | c8cde198a64de3a48b1de08dbf65f68dbbc9a13d /gas/config/tc-ft32.c | |
| parent | d268bbaff7da90caf5fbc94456ae58315ffa1802 (diff) | |
| download | fsf-binutils-gdb-3b4b0a629a972bf80fc0ac6202f89681fab1df37.zip fsf-binutils-gdb-3b4b0a629a972bf80fc0ac6202f89681fab1df37.tar.gz fsf-binutils-gdb-3b4b0a629a972bf80fc0ac6202f89681fab1df37.tar.bz2 | |
FT32: support for FT32B processor - part 1
FT32B is a new FT32 family member. It has a code
compression scheme, which requires the use of linker
relaxations. The change is quite large, so submission
is in several parts.
Part 1 adds a 15-bit instruction field, and CPU-specific functions for
the code compression that are used in binutils and GDB.
bfd/ChangeLog:
2017-10-12 James Bowman <james.bowman@ftdichip.com>
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* elf32-ft32.c: Add HOWTO R_FT32_15.
* reloc.c: Add BFD_RELOC_FT32_15.
gas/ChangeLog:
2017-10-12 James Bowman <james.bowman@ftdichip.com>
* config/tc-ft32.c (md_assemble): Replace FT32_FLD_K8 with
K15.
(md_apply_fix, tc_gen_reloc): Add BFD_RELOC_FT32_15.
include/ChangeLog:
2017-10-12 James Bowman <james.bowman@ftdichip.com>
* elf/ft32.h: Add R_FT32_15.
* opcode/ft32.h: Replace FT32_FLD_K8 with K15.
(ft32_shortcode, sc_compar, ft32_split_shortcode,
ft32_merge_shortcode, ft32_merge_shortcode): New functions.
opcodes/ChangeLog:
2017-10-12 James Bowman <james.bowman@ftdichip.com>
* opcodes/ft32-dis.c (print_insn_ft32): Replace FT32_FLD_K8 with K15.
* opcodes/ft32-opc.c (ft32_opc_info): Replace FT32_FLD_K8 with
K15. Add jmpix pattern.
sim/ChangeLog:
2017-10-12 James Bowman <james.bowman@ftdichip.com>
* sim/ft32/interp.c (step_once): Replace FT32_FLD_K8 with K15.
Diffstat (limited to 'gas/config/tc-ft32.c')
| -rw-r--r-- | gas/config/tc-ft32.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/gas/config/tc-ft32.c b/gas/config/tc-ft32.c index 6d5e2ce..2878e14 100644 --- a/gas/config/tc-ft32.c +++ b/gas/config/tc-ft32.c @@ -348,14 +348,16 @@ md_assemble (char *str) 0, BFD_RELOC_16); break; - case FT32_FLD_K8: + case FT32_FLD_K15: op_end = parse_exp_save_ilp (op_end, &arg); + if (arg.X_add_number & 0x80) + arg.X_add_number ^= 0x7f00; fix_new_exp (frag_now, (output - frag_now->fr_literal), - 1, + 2, &arg, 0, - BFD_RELOC_8); + BFD_RELOC_FT32_15); break; case FT32_FLD_R_D_POST: b |= parse_register_operand (&op_end) << FT32_FLD_R_D_BIT; @@ -529,6 +531,14 @@ md_apply_fix (fixS *fixP ATTRIBUTE_UNUSED, md_number_to_chars (buf, newval, 3); break; + case BFD_RELOC_FT32_15: + if (!val) + break; + newval = md_chars_to_number (buf, 2); + newval |= val & ((1 << 15) - 1); + md_number_to_chars (buf, newval, 2); + break; + case BFD_RELOC_FT32_17: if (!val) break; @@ -574,6 +584,7 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixP) case BFD_RELOC_8: case BFD_RELOC_FT32_10: case BFD_RELOC_FT32_20: + case BFD_RELOC_FT32_15: case BFD_RELOC_FT32_17: case BFD_RELOC_FT32_18: code = fixP->fx_r_type; |