Zilog Z08470 - Manual (Page 291)

UM008007-0715 Z80 Instruction Description
Z80 CPU
User Manual
279
Example
The Program Counter contains 1A47h , the Stack Pointer contains 3002h , and memory
locations contain the following data.
If an instruction fetch sequence begins, the 3-byte instruction CD 3521h is fetched to the
CPU for execution. The mnemonic equivalent of this instruction is CALL 2135h . Upon
the execution of this instruction, memory address 3001h contains 1Ah , address 3000h
contains 4Ah , the Stack Pointer contains 3000h , and the Program Counter contains
2135h , thereby pointing to the address of the first op code of the next subroutine to be
executed.
Location Contents
1A47h CDh
IA48h 35h
1A49h 21h