APPENDIX B

(Reprinted with Permission from Intel Corporation)

intel

MCS®-51 PROGRAMMER'S GUIDE AND INSTRUCTION SET

INSTRUCTION DEFINITIONS

ACALL    addr11

Function:

Absolute Call

Description:

ACALL unconditionally calls a subroutine located at the indicated address. The 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 first) and increments the Stack Pointer twice. The destination address is obtained by successively concatenating the five high-order bits of the incremented PC, opcode bits 7-5, and the second byte of the instruction. The subroutine called ...

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