[SOLVED] 7 exercises / assignments. Can you check if I have done them correct?

[metals]

Hello, So I have done some exercies / assignments but I dont have the correct answer for them. Can anyone please help me check if I have solved them correct? I would truly appreciate it.

No. 1

Question:
Type in the the new content after the asm-code have been executed.
Is the after column correct?

Var1 equ x20
Var2 equ x21
Var3 equ x22
Status equ x03
VarA equ x28
VarB equ x29
VarC equ x2A

[INDENT]movwf Var1
movwf Var3
bsf status,0
rrf Var3
rrf Var3


movlw x3B
addwf VarA,0
movwf VarB
xorfw VarC,1[/INDENT]

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No. 2

Question:
implement the following pseudo code with assembly code:

if PortC bit2 ==1
(increment var1 by 1)
else
(increment var1 by 2)

My answer:

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Code ASM - [expand]
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btfsc PortC,2
incf var1,f
addlw x02
addwf var1,f

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or

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Code ASM - [expand]
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btfss PortC,2
goto add
incf var1,f
add movlw x02
addwf var1,f

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No. 3

Question:
which ASCII-character is being sent? Method is serial communication with RS232. There is a stop bit, start bit, and a parity.




My answer:


ASCII character '&' which is 0100 0110

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No. 4

implement the following pseudo code with assembly code:

if (var1 > 9) or (var1 < 4)
(increment PortC by 5)
else
(invert PortC)

My answer:

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Code ASM - [expand]
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movlw x09
cpfslt var1
goto add_5
comf portC
movlw x04
cpfsgt var1
goto add_5
comf portC
add_5 movlw x05
addwf portC

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No. 5

Question:
You are about to send the ASCII-character 'G' with serial communication RS232 standard.
Draw in the picture below how it would look like.



My answer:
'G' in ASCII is 0100 0111



Should a switch the high and low bits? like this 1 11100010 0?

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No. 6

Question:
We want to send the ASCII-character 'B' with serial communication RS323 standard. The parity is odd. Draw the pattern in the following pic



My answer:

ASCII 'B' = 0100 0010



or should I swap the High and low bits before I draw the pattern?

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[embpic]

As normally if u r using UART module form controller thn u need not to consider start bit or stop bit. module which is being assign for perticular it will work prperly. so u needd to configure the correct register neetly.(if u r doing programming)

 

[metals]

These are some exercises I got from school, and I have copied them just as they are written. I am not programming anything, just answering questions on a paper.