xeffets test ne va pas

voila je compile et me dit erreur modex.h pourtant il est dans le include
...

C xeffects.h: No such file or directory.

je comprend pas pourquoi

#include "modex.h"
#include "xeffects.h"

void XEffects::setYScroll(unsigned char* upper,
unsigned char* uppermiddle,
unsigned char* lowermiddle,
unsigned char* lower)
{
ModeX::onVidPage(upper ,64000u,3*16000u);
ModeX::onVidPage(uppermiddle,64000u,2*16000u);
ModeX::onVidPage(lowermiddle,64000u,1*16000u);
ModeX::onVidPage(lower ,64000u,0*16000u);
}

void XEffects::YScroll(unsigned int row)
{
ModeX::WaitRetrace();
ModeX::setStart(row*80);
}

void XEffects::setSplit(unsigned char* upper, unsigned char* lower)
{
ModeX::setStart(16000u);
ModeX::onVidPage(upper,64000u,0*16000u);
ModeX::onVidPage(lower,64000u,1*16000u);
}

void XEffects::SplitScreen(unsigned char row)
{
ModeX::WaitRetrace();
asm
{
mov bl,row
xor bh,bh
shl bx,1 //*2 wg. Zeilenverdopplung
mov cx,bx

mov dx,3d4h //CRTC
mov al,07h //Register 7 (Overflow low)
out dx,al
inc dx
in al,dx
and al,11101111b //Bit 4 mit Bit 8 der Zeile laden
shr cx,4
and cl,16
or al,cl
out dx,al //und setzen

dec dx
mov al,09h //Register 9 (Maximum Row Adress)
out dx,al
inc dx
in al,dx
and al,10111111b //Bit 6 mit Bit 9 der Zeile laden
shr bl,3
and bl,64
or al,bl
out dx,al //und setzen

dec dx
mov al,18h //Register 18h (Line Compare/Split Screen)
mov ah,row //restlichen 8 Bit setzen
shl ah,1
out dx,ax
}
}