Samsung P8245 Microscope & Magnifier User Manual


 
S3C8245/P8245/C8249/P8249 ADDRESS SPACES
2-19
+ PROGRAMMING TIP — Standard Stack Operations Using PUSH and POP
The following example shows you how to perform stack operations in the internal register file using PUSH and POP
instructions:
LD SPL,#0FFH ; SPL FFH
; (Normally, the SPL is set to 0FFH by the initialization
; routine)
PUSH PP ; Stack address 0FEH PP
PUSH RP0 ; Stack address 0FDH RP0
PUSH RP1 ; Stack address 0FCH RP1
PUSH R3 ; Stack address 0FBH R3
POP R3 ; R3 Stack address 0FBH
POP RP1 ; RP1 Stack address 0FCH
POP RP0 ; RP0 Stack address 0FDH
POP PP ; PP Stack address 0FEH