8051 based project That can save up to 60 codes with max of 6 combination of numbers

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//Create a storage area for the keyboard entry.
char keyBuffer[7];

//Create an index for the arrays
char index=0;

long value;

how to make a keyBuffer? I don't how...is there anybody that could help me?
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well i guess code in your post shows how to make it..

Then what should i do when i want to call the value of the value? what is the function of the variable value on the program above?

hi onyot.josephian
keybuffer is a simple array of 7 bytes
u can access it using keybuffer[0], keybuffer[1], keybuffer[2] .......... keybuffer[6]