Samsung S3C9228/P9228, 8-Bit CMOS Microcontroller user manual Push SYM

ADDRESS SPACES S3C9228/P9228

+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	SP,#0B8H	;	SP ← B8H (Normally, the SP is set to 0B8H by the
		;	initialization routine)
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PUSH	SYM	;	Stack address 0B7H ← SYM
PUSH	WTCON	;	Stack address 0B6H ← WTCON
PUSH	20H	;	Stack address 0B5H ← 20H
PUSH	R3	;	Stack address 0B4H ← R3
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POP	R3	;	R3 ← Stack address 0B4H
POP	20H	;	20H ← Stack address 0B5H
POP	WTCON	;	WTCON ← Stack address 0B6H
POP	SYM	;	SYM ← Stack address 0B7H

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