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CreateDIBSection problem, bitmap bits respond to changes only once
when I create a DIB with CreateDIBSection, I only seem to be able to write to the bits once. I inserted calls to GdiFlush throughout the code but that doesn't seem to solve the problem. here is the test code: #include <windows.h> LRESULT WndProc(HWND, UINT, WPARAM, LPARAM); struct dib {... -
mov reg16, [sp] doesn't work!!
I can't figure this out. All I need to do is mov the contents of sp into a register, but nasm complains 'invalid effective address'. I've tried it with every single register combination, but it won't let me do it. Please help! -
Problem accessing the stack.
Hello, I have a question with accessing stack variables - I am using NASM. Here is what I did on the calling side: push msg ; msg is a null-terminated string call print add esp, 4 And for the callee: print: mov si, [esp-4] ; more code... For some reason, esp-4 doesn't seem to hold the...
