Whoops, just reread your question: The correct prototype for _inp is the following

int __cdecl _inp(unsigned short);

I'm pretty sure leaving out the 'short' would give you an error.

- Splat

[This message has been edited by Splat (edited November 07, 1999).]

I would guess that the error it gives you is because it doesn't know what __cdecl is. Are you sure you have the correct # of _'s. It looks like it thinks __cdecl is a var, and then obviously wants a comma to separate it from the next var name.

Rock

#define __cdecl _cdecl

/* function prototypes */

int _cdecl _inp(unsigned);

#define VGA_INPUT_STATUS_1 0x3DA
// VGA status reg1, bit 3 is the vsync
// when 1 - retrace in progress
// when 0 - no retrace
#define VGA_VSYNC_MASK 0x80 // masks off unwanted bit of the status reg.

// Function: wait_for_vsync
// Purpose: waits for the vertical retrace
//
// Input: none
// Output: none
void wait_for_vsync();

---Game Code---

void wait_for_vsync()
{
while(_inp(VGA_INPUT_STATUS_1) & VGA_VSYNC_MASK)
{
// do nothing: VGA is in retrace
}

// Now wiat for vsync and exit

while(!(_inp(VGA_INPUT_STATUS_1) & VGA_VSYNC_MASK))
{
// Do nothing: wait for the start of retrace
}

// retrace is starting so exit
}

int __cdecl _inp(unsigned);

My compiler says I need a comma, like this:

int __cdecl ,_inp(unsigned);

But when I do that it gives my some stupid error. Please help.