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Nintendo® Confidential

## osViExtendVStart

Syntax

#include <ultra64.h> /* os.h */ void osViExtendVStart(u32 value);

Arguments

- value
  Number of scan lines to add (0 - 48)

Return Value
None

Explanation
Specifies the number of PAL-mode scan lines to be added. With low resolutions, specifying 48 for value has the same effect as using FPAL mode. Specifying an additional 32 or 24 scan lines results in display over virtually the entire screen, and the increase in the number of rendering pixels can be limited. No blurring of the screen occurs in this case.

Note
This can be used only in PAL mode. Proper operation cannot be assured with NTSC, MPAL, or FPAL mode.

See also
osViSetXScale
osViSetYScale

Revision History
2/1/1999 Completely rewritten

Nintendo® Confidential Warning: all information in this document is confidential and covered by a non-disclosure agreement. You are responsible for keeping this information confidential and protected. Nintendo will vigorously enforce this responsibility.
Copyright © 1998
Nintendo of America Inc. All rights reserved
Nintendo and N64 are registered trademarks of Nintendo
Last updated March 1998