Samsung S3C8275X - Manual (Page 56)

S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X ADDRESS SPACES
2-23
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