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| author | Jeff Law <law@redhat.com> | 1997-02-21 07:21:32 +0000 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 1997-02-21 07:21:32 +0000 |
| commit | 7c49f021ca0b97d27913ad75044a7a767a115393 (patch) | |
| tree | 66482bd24abd3224b1d6ebd641c4a26144cb074f /bfd | |
| parent | c17db7cfb4c3f065cd2e38fc9fa9984512b193cc (diff) | |
| download | gdb-7c49f021ca0b97d27913ad75044a7a767a115393.zip gdb-7c49f021ca0b97d27913ad75044a7a767a115393.tar.gz gdb-7c49f021ca0b97d27913ad75044a7a767a115393.tar.bz2 | |
Twiddle some comments to more accurately reflect reality.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/elf32-mn10200.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/bfd/elf32-mn10200.c b/bfd/elf32-mn10200.c index ee626a0..1006dda 100644 --- a/bfd/elf32-mn10200.c +++ b/bfd/elf32-mn10200.c @@ -491,12 +491,12 @@ mn10200_elf_relocate_section (output_bfd, info, input_bfd, input_section, * jsr:24 -> jsr:16 2 bytes * jmp:24 -> jmp:16 2 bytes - - jmp:16 -> bra:8 1 byte + * jmp:16 -> bra:8 1 byte - - If the previous instruction is a conditional branch + * If the previous instruction is a conditional branch around the jump/bra, we may be able to reverse its condition and change its target to the jump's target. The jump/bra - can then be deleted. 1 byte + can then be deleted. 2 bytes - mov abs24 -> mov abs16 2 byte savings @@ -506,6 +506,9 @@ mn10200_elf_relocate_section (output_bfd, info, input_bfd, input_section, - Most instructions which accept d24 can relax to d16 2 bytes - Most instructions which accept d16 can relax to d8 1 byte + abs24, imm24, d24 all look the same at the reloc level. It + might make the code simpler if we had different relocs for + the various relaxable operand types. A '*' indicates a case this code can handle. */ |