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PC912XDP512F0MPVR 데이터시트(PDF) 274 Page - Freescale Semiconductor, Inc

부품명 PC912XDP512F0MPVR
상세설명  HCS12X Microcontrollers
PDF  1348 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

PC912XDP512F0MPVR 데이터시트(HTML) 274 Page - Freescale Semiconductor, Inc

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Chapter 6 XGATE (S12XGATEV2)
MC9S12XDP512 Data Sheet, Rev. 2.21
274
Freescale Semiconductor
Operation
RS1 - RS2 - C
⇒ RD
Subtracts the content of register RS2 and the value of the Carry bit from the content of register RS1 using
binary subtraction and stores the result in the destination register RD. Also the zero flag is carried forward
from the previous operation allowing 32 and more bit subtractions.
Example:
SUB
R6,R4,R2
SBC
R7,R5,R3
; R7:R6 = R5:R4 - R3:R2
BCC
; conditional branch on 32 bit subtraction
CCR Effects
Code and CPU Cycles
SBC
Subtract with Carry
SBC
NZ
V
C
∆∆∆∆
N:
Set if bit 15 of the result is set; cleared otherwise.
Z:
Set if the result is $0000 and Z was set before this operation; cleared otherwise.
V:
Set if a two´s complement overflow resulted from the operation; cleared otherwise.
RS1[15] & RS2[15] & RD[15]new | RS1[15] & RS2[15] & RD[15]new
C:
Set if there is a carry from bit 15 of the result; cleared otherwise.
RS1[15] & RS2[15] | RS1[15] & RD[15]new | RS2[15] & RD[15]new
Source Form
Address
Mode
Machine Code
Cycles
SBC RD, RS1, RS2
TRI
0
0
0
1
1
RD
RS1
RS2
0
1
P



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