How to translate this 8 bytes into assemblable double format in nasm?

Question

So basically I have some asm code disassembled from a ELF binary, on 32 bit Linux.

In the .rodata section, I can find a sequence of 8 byte like this:

00000000 00002440

I know it represent a double number (which is 10.0), and I am trying to re-use it in my nasm code like this:

a dq 00000000 00002440      ; how to adjust it?

fld    qword [a]
fstp   QWORD [esp+0x18]
fld    QWORD [esp+0x18]
fstp   QWORD [esp+0x4]
mov    DWORD [esp],b
call   printf

Obviously a dq 00000000 00002440 is not correct, and I have tried for several ways, but still can not assemble it using follow command (or some times I can assemble, but just get a wrong result as 0.00)

nasm -f elf test.s

Could anyone give me some help?

Answer 1

The following statements are equivalent.

dq 0x4024000000000000
dq 10.0

See the manual for details.