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    SubjectRe: [PATCH] APM support doesn't compile with binutils
    > This has really kicked up a storm of messages! It's a pity I didn't
    > get my first patch to gas correct, and I guess I should have posted
    > some of my correspondence with Ian Taylor here on linux-kernel. That
    > may have reduced the message flood somewhat.
    > I have another patch which I think has the correct behaviour. Here is
    > an example of what my latest gas produces, assuming a default data
    > size of 32 bits.

    Please wait until My current gas get:

    # cat 1.s
    push %ds
    pushl %ds
    pushw %ds
    mov %ds,%ax
    movw %ds,%ax
    movw %ds,%eax
    mov %ds,%eax
    movl %ds,%eax
    movl %ds,%ax
    # gcc -c 1.s
    # objdump -d 1.o

    1.o: file format elf32-i386

    Disassembly of section .text:

    00000000 <.text>:
    0: 1e pushl %ds
    1: 1e pushl %ds
    2: 66 1e pushw %ds
    4: 66 8c d8 movw %ds,%ax
    7: 66 8c d8 movw %ds,%ax
    a: 66 8c d8 movw %ds,%ax
    d: 8c d8 movl %ds,%eax
    f: 8c d8 movl %ds,%eax
    11: 8c d8 movl %ds,%eax
    # cat 2.s
    movb %ds,%ax
    movb %ds,%eax
    pushb %ds
    # gcc -c 2.s
    2.s: Assembler messages:
    2.s:1: Error: register does not match opcode suffix
    2.s:2: Error: register does not match opcode suffix
    2.s:3: Error: register does not match opcode suffix

    Does it look to everyone? I am preparing for today
    or tomorrow.

    BTW, Linus is right. Intel reference manual is wrong on segment
    registers. I had to modify opcodes/i386-dis.c too.



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