Thread: C++ Problem

I like to think I'm a fairly competent programmer
but I draw the line at assembly

now, I've never done anything game orientated
I'm primarily database and web server middleware

but seriously,
does DIY assembly *really* make that much of a difference?
(with all it's portability & bug pitfalls and show-stoppers)

maybe it's cause I change my mind too often
A minor re-jig to C code vs. scraping and re-writing pages of assembly

anyway....

Originally Posted by Ynot

does DIY assembly *really* make that much of a difference?

Assembly code is INSANELY fast. It also has a better memory footprint. I've never had a compiler make better asm than me (for small routines obviously.) Compilers are very liberal with the stack (liveliness analysis isn't very good), when I do something in asm I try to use the stack as little as possible, that usually means moving parts of the code around, which compilers have a hard time doing.

I do graphics and when doing extensions for OpenGL or shaders, you have to use assembly because C just isn't fast enough, even with the 3 pass optimizer turned on.

Okay, it worked, but it's taking forever to compile

Actually, it didn't work.

It just took forever and gave me 5x the errors...

Must be your C++ code, asm should be really fast to compiler. What other flags did you set, are you doing multiple passes?

As for your errors: see post above about referencing with asm.

None and no.

I just put gcc -o my_program -masm=intel my_program.c twice for the two (huge) files that use inline assembly.

It still doesn't recognize __asm { }

Originally Posted by Seismosaur

It still doesn't recognize __asm { }

GCC accepts either asm or _asm_. You need either no underscores or two.

I see some errors in the programmer, are you sure this program worked once?

Code:

mov bx, word ptr [edi]

Pointers are 64-bit, bx is 16-bit

Oh okay.

Well I sure hope it did as it's a game engine for a video game that was once produced

A few other people have managed to get it working, but I have limited contact with them.

I think most games are written in .NET which means a M$ compiler. I'm not sure if you can get that for free.