Description:ACALL unconditionally calls a subroutine located at the indicated address. e
instruction increments the PC twice to obtain the address of the following instruction,
then pushes the 16-bit result onto the stack (low-order byte fi rst) and increments the
Stack Pointer twice. e destination address is obtained by successively concatenat-
ing the fi ve high-order bits of the incremented PC, opcode bits 7-5, and the second
byte of the instruction. e subroutine called must therefore start within the same 2K
block ...
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