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[Tinycc-devel] x86_64 assembler doesn't recognise pushfq and popfq
From: |
Jay Foad |
Subject: |
[Tinycc-devel] x86_64 assembler doesn't recognise pushfq and popfq |
Date: |
Wed, 18 May 2011 14:25:28 +0100 |
On x86_64 I get:
$ cat t.c
void f(void) {
asm("pushfq" "\n\t" "popfq");
}
$ tcc t.c
t.c:3: error: unknown opcode 'pushfq'
The x86_64 assembler has these definitions, which seem to be copied
from the i386 assembler:
DEF_ASM_OP0(pushfl, 0x9c)
DEF_ASM_OP0(popfl, 0x9d)
DEF_ASM_OP0(pushf, 0x9c)
DEF_ASM_OP0(popf, 0x9d)
But for x86_64, I think "pushfl" and "popfl" should be changed to
"pushfq" and "popfq". I have attached a patch which implements this.
Thanks,
Jay.
tcc-pushfq-popfq
Description: Binary data
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