What Computer language is this? I think it is a version of C

Thanks

#include

#define lcd P1

#define dat P2

sbit rs=P3^6;

sbit e=P3^7;

sbit l1=P0^0;

void delay (int);

void display (unsigned char);

void cmd (unsigned char);

void init (void);

void string (char *);

void intro (void);

unsigned char degree[8]={0x0e,0x0a,0x0e,0x00,0x00,0x00,0x00,0x00};

char i=0;

void delay (int d)

{

unsigned char i=0;

for(;d>0;d--)

{

for(i=250;i>0;i--);

for(i=248;i>0;i--);

}

}

void cmd (unsigned char c)

{

lcd=c;

rs=0;

e=1;

delay(10);

e=0;

}

void display (unsigned char c)

{

lcd=c;

rs=1;

e=1;

delay(10);

e=0;

}

void string (char *c)

{

while(*c)

{

display(*c++);

}

}