asm & c compile problem

[hatling]

this is my code
is there anyone help me analyze this problem,thanks

[Combuster]

Don't use a 32 or 64-bit compiler if you expect 16-bit code.

[Love4Boobies]

Actually, it should be fine with GCC, if DS = ES and the code fits one segment. Isn't that what they do with GRUB?

[Combuster]

Actually, it should be fine with GCC, if DS = ES and the code fits one segment. Isn't that what they do with GRUB?

Not without doing the hack that makes it emit 16-bit code.

The OP is executing 32-bit opcodes in 16-bit mode and wonders why the compiler is "broken". The problem gets ever more interesting when you end up using a mingw32 (educated guess) compiler to make a DOS .COM binary in a "bootloader" folder. Add to that that the OP can't even formulate a proper question chances are likely he doesn't even understand what he's doing - in which case guessing the right fix is rather dangerous.

[hatling]

Actually, it should be fine with GCC, if DS = ES and the code fits one segment. Isn't that what they do with GRUB?

Not without doing the hack that makes it emit 16-bit code.

The OP is executing 32-bit opcodes in 16-bit mode and wonders why the compiler is "broken". The problem gets ever more interesting when you end up using a mingw32 (educated guess) compiler to make a DOS .COM binary in a "bootloader" folder. Add to that that the OP can't even formulate a proper question chances are likely he doesn't even understand what he's doing - in which case guessing the right fix is rather dangerous.

thanks
when i add

Code: Select all

asm(".code16gcc\n\t");

at the head of the file main.c,it is the same result

[Combuster]

Add to that that the OP can't even formulate a proper question chances are likely he doesn't even understand what he's doing

...

I agree with half of that, Berkus.

[Combuster]

Well, you just wasted both your hands on one stupidity. There might be more to come. That is, unless the OP finally gets the hint and stops posting symptoms of an unmentioned problem.

[Griwes]

Both hands? Those were two one-handed facepalms

[qw]

And two heads obviously.