Need help setting VESA mode in C

[YMK]

OK I found out how to set the SVGA modes in C, the only problem is that I'm stuck in a mode where I have to write pixels to the screen in 64K segments which is painfully slow. I got some info from a website about setting the Flat Memory Model (where I can write to the whole screen without switching segments). This is what it says:

Input: AX 0x4F02 - Set VBE Mode
BX D0-D8 Mode number
D9-D13 Reserved (must be 0)
D14 0 - Use windowed frame buffer model
1 - Use linear/flat frame buffer model
If set, the mode will be initialized for use with a flat frame buffer model. The base address of the frame buffer can be determined from the extended mode information returned by VBE Function 01h. If D14 is set, and a linear frame buffer model is not available then the call will fail, returning AH=01h to the application.

Input: AX 0x4F02 - Set VBE Mode
BX D0-D8 Mode number
D9-D13 Reserved (must be 0)
D14 0 - Use windowed frame buffer model
1 - Use linear/flat frame buffer model

It seems that I have to set bit 14 to 1 somehow. I would usually set a mode such as 0x101 then turn bit 14 on which would change it to 0x4101 but my compiler chokes saying this number is too big. Help is greatly appreciated. Thanks.

[strangerstill]

Not that I have any experience at low-level stuff, but could you do it by offsetting a pointer by 3 bytes?