If you do a function call, the called routine can examine the stack and find
the PC of where it was called from. With a function entry like:
_copy_ident:
push ix
ld ix,#0
add ix,sp
ld c, 4(ix)
ld b, 5(ix)
...
0(ix) and 1(ix) should be the original value of IX, 2(ix) and 3(ix) should
be the PC.
- Guy
On Sat, Mar 28, 2009 at 2:26 PM, candida lopez rodriguez
<c.rodr...@rcn.com>wrote:
> Hello:
>
> I have a question that I hope somebody can help me. I want to create a
> hardware debugger, this debugger consists of a z80 board with a CTC and a
> UART. The board is connected to an STD bus. I have several other boards
> that
> I do not know if they work, so my idea is to use the board that I know to
> work to toggle addresses and such to examine the boards.
>
> Well the problem:
>
> I need to obtain the PC address (one of the commands that I want to have is
> dump the registers). My problem is that I can not see a way to obtain the
> PC,
> I can set it using HL but I do not have a way to obtain its value. There is
> a
> way to do so
>
> Thanks
>
>
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