MateoConLechuga: Created page with "D0053F - tempSP tempSP == Synopsis == '''Unofficial Name:''' tempSP '''Memory Address:''' D0053Fh '''Length:..."

2016-05-26T15:30:35Z

Created page with "D0053F - tempSP tempSP == Synopsis == '''Unofficial Name:''' tempSP '''Memory Address:''' D0053Fh '''Length:..."

New page

[[Category:84PCE:RAM:By Address|D0053F - tempSP]] [[Category:84PCE:RAM:By Name|tempSP]]
== Synopsis ==
'''Unofficial Name:''' tempSP

'''Memory Address:''' D0053Fh

'''Length:''' 3 bytes

When the OS is checking the stack depth, it uses this region of memory to load hl with sp. For instance:

ld (tempSP),sp
ld hl,(tempSP)

It can generally be used as a temporary data location, although it may be written to at some points.

==Why this is silly==

However, it is simply beyond me why they didn't simply do this, to save a ton of bytes and speed.

or a,a
sbc hl,hl
add hl,sp

84PCE:RAM:D0053F - Revision history

MateoConLechuga: Created page with "D0053F - tempSP tempSP == Synopsis == '''Unofficial Name:''' tempSP '''Memory Address:''' D0053Fh '''Length:..."