Re: as from binutils 2.9.5.0.31-2 miscompiles kernel code

[Alan Modra]

On Mon, 10 Apr 2000, Petr Vandrovec wrote:

> Package: binutils
> Version: 2.9.5.0.31-2
> 
> vana:~# cat x.s
> .code16
> 	movl $0x0000e820, %eax
> vana:~# as x.s
> vana:~# objdump --disassemble a.out

You should "objdump -mi8086 --disassemble a.out" here since you are
disassembling a .code16 object file.  Plain "objdump -d" assumes 32 bit
mode, (but still plainly shows that there was an assembly error)

> a.out:   file format elf32-i386
> 
> Disassembly of section .text:
> 
> 0000000000000000 <.text>:
>    0:   66 b8 20 e8             mov    $0xe820,%ax
>    4:   ff                      (bad)
>    5:   ff                      .byte 0xff

My goof.  Fixed 2000-04-03, and in H.J.'s binutils-2.9.5.0.33  This bug
only occurs in 16 bit mode.  ie. you don't need to worry at all about
normal gcc output triggering this bug.

Regards, Alan Modra.
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