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S3P80C5/C80C5/C80C8
INSTRUCTION SET
6-63
POP
—
Pop From Stack
POP
dst
Operation:
dst
←
@SP
SP
←
SP + 1
The contents of the location addressed by the stack pointer are loaded into the destination. The
stack pointer is then incremented by one.
Flags:
No flags affected.
Format:
Bytes
Cycles
Opcode
(Hex)
Addr Mode
dst
opc
dst
2
8
50
R
8
51
IR
Examples:
Given: Register 00H = 01H, register 01H = 1BH, SPH (0D8H) = 00H, SPL (0D9H) = 0FBH,
and stack register 0FBH = 55H:
POP
00H
→
Register 00H = 55H, SP = 00FCH
POP
@00H
→
Register 00H = 01H, register 01H = 55H, SP = 00FCH
In the first example, general register 00H contains the value 01H. The statement "POP 00H"
loads the contents of location 00FBH (55H) into destination register 00H and then increments the
stack pointer by one. Register 00H then contains the value 55H and the SP points to location
00FCH.
Содержание S3P80C5
Страница 2: ...S3P80C5 C80C5 C80C8 8 BIT CMOS MICROCONTROLLERS USER S MANUAL Revision 1 ...
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Страница 49: ...ADDRESS SPACES S3P80C5 C80C5 C80C8 2 20 NOTES ...
Страница 197: ...INSTRUCTION SET S3P80C5 C80C5 C80C8 6 88 NOTES ...
Страница 201: ...CLOCK CIRCUITS S3P80C5 C80C5 C80C8 7 4 NOTES ...
Страница 237: ...TIMER 1 S3P80C5 C80C5 C80C8 11 6 NOTES ...
Страница 245: ...COUNTER A S3P80C5 C80C5 C80C8 12 8 NOTES ...
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Страница 263: ...BOOK SPINE TEXT SAMSUNG Logo S3P80C5 C80C5 C80C8 Microcontrollers User s Manual Rev 1 May 2002 ...