Description:

Increment a short within the stack using a 1-based relative index from the top byte on the stack.

Data (1 byte):

byte: Relative index from the top byte on the stack.

Pseudo Code:

((short) stack[sp - program[pc+1]])++
pc = pc + 2

Flags Affected:

D	H	C	Z	N

Possible Errors:

tvmStackError

-

The stack index is invalid.

Example:

incs 4

Before stack   top 1 0x0B 2 0xFF 3 0xFF 4 0x23   bottom

After stack   top 1 0x0B 2 0xFF 3 0x00 4 0x24   bottom