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Mar 29th, 2007
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Need help with 8086 assembly language

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I am new to Microprocessor 8086. i should submit this assignment by monday evening. Can anybody help me with this question?

Q1 Write an 8086 assembly language program that will compute:

2.0 * log10 X for x = 0.1, 1.0, 10.0, 100.5, 1000.0, and six other values using a loop. All values are in the single-precision (short real) format.


Kindly help me. I am breaking my head like anything
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Re: Need help with 8086 assembly language

post the code you are writing. Are you allowed to use the math coprocessor for log and other math functions ?
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Re: Need help with 8086 assembly language

I would try using the FYL2X instruction, which computes:

st(1) = st(1) * log2(st(0)

Where log2 is logarithm to base 2. You can get from log base 2 to log base 10 with the formula:

log10(x) = log2(x) * log10(2)
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Apr 18th, 2007
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Re: Need help with 8086 assembly language

Hi even im looking out the answer for the same question
in case u know the answer or get it from some one kindly send it to me...
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Re: Need help with 8086 assembly language

.data
short REAL4 0.1,1.0,10.0, 100.5, 1000.0, 400.0, 40.5, 60.6,8.9,10.1
count db 0ah
.code
Lea si, short
Mov cl, count
Loop1:
;moving the element to to ax register
Mov ax, [si]
;Push ax into first position
fld ax
;This instruction is used to find the logarithm of the top most element of the stack
FLDLG2
;Pop the element from the stack
Fstp dl
;displaying the value
Mov ah,02h
Int 21h
Loop Loop1

Mov ah,4ch
Int 21h

If u have any queries, just reply me
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mmahima2002 is offline Offline
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Re: Need help with 8086 assembly language

Click to Expand / Collapse  Quote originally posted by zunnur ...
I am new to Microprocessor 8086. i should submit this assignment by monday evening. Can anybody help me with this question?

Q1 Write an 8086 assembly language program that will compute:

2.0 * log10 X for x = 0.1, 1.0, 10.0, 100.5, 1000.0, and six other values using a loop. All values are in the single-precision (short real) format.


Kindly help me. I am breaking my head like anything
if u get the answer of this question plz mail me...... <email snipped>
Last edited by Ancient Dragon; Apr 28th, 2007 at 3:23 pm. Reason: snipped email
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Re: Need help with 8086 assembly language

Click to Expand / Collapse  Quote originally posted by mmahima2002 ...
.data
short REAL4 0.1,1.0,10.0, 100.5, 1000.0, 400.0, 40.5, 60.6,8.9,10.1
count db 0ah
.code
Lea si, short
Mov cl, count
Loop1:
;moving the element to to ax register
Mov ax, [si]
;Push ax into first position
fld ax
;This instruction is used to find the logarithm of the top most element of the stack
FLDLG2
;Pop the element from the stack
Fstp dl
;displaying the value
Mov ah,02h
Int 21h
Loop Loop1

Mov ah,4ch
Int 21h

am new to Microprocessor 8086. i should submit this assignment by monday evening. Can anybody help me with this question?

Q1 Write an 8086 assembly language program that will compute:

2.0 * log10 X for x = 0.1, 1.0, 10.0, 100.5, 1000.0, and six other values using a loop. All values are in the single-precision (short real) format.


Kindly help me. I am breaking my head like anything
if u get the answer of this question plz mail me...... <snipped email>
Last edited by Ancient Dragon; Apr 28th, 2007 at 3:24 pm. Reason: snipped email
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aforarihant19 is offline Offline
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Apr 26th, 2007
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Re: Need help with 8086 assembly language

Click to Expand / Collapse  Quote originally posted by zunnur ...
I am new to Microprocessor 8086. i should submit this assignment by monday evening. Can anybody help me with this question?

Q1 Write an 8086 assembly language program that will compute:

2.0 * log10 X for x = 0.1, 1.0, 10.0, 100.5, 1000.0, and six other values using a loop. All values are in the single-precision (short real) format.


Kindly help me. I am breaking my head like anything
am new to Microprocessor 8086. i should submit this assignment by monday evening. Can anybody help me with this question?

Q1 Write an 8086 assembly language program that will compute:

2.0 * log10 X for x = 0.1, 1.0, 10.0, 100.5, 1000.0, and six other values using a loop. All values are in the single-precision (short real) format.


Kindly help me. I am breaking my head like anything[/quote]

if u get the answer of this question plz mail me...... <snipped email>
Last edited by Ancient Dragon; Apr 28th, 2007 at 3:24 pm. Reason: snipped email
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aforarihant19 is offline Offline
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Apr 26th, 2007
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Re: Need help with 8086 assembly language

iam new to Microprocessor 8086. i should submit this assignment by 27th /04/2007i evening. Can anybody help me with this question?

Q1 Write an 8086 assembly language program that will compute:

2.0 * log10 X for x = 0.1, 1.0, 10.0, 100.5, 1000.0, and six other values using a loop. All values are in the single-precision (short real) format.


Kindly help me. I am breaking my head like anything

if u get the answer of this question plz mail me...... <snipped email> it is urgent...............
Last edited by Ancient Dragon; Apr 28th, 2007 at 3:25 pm. Reason: snipped email
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aforarihant19 is offline Offline
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Apr 27th, 2007
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Re: Need help with 8086 assembly language

.data
short REAL4 0.1,1.0,10.0, 100.5, 1000.0, 400.0, 40.5, 60.6,8.9,10.1
count db 0ah
.code
Lea si, short
Mov cl, count
Loop1:
;moving the element to to ax register
Mov ax, [si]
;Push ax into first position
fld ax
;This instruction is used to find the logarithm of the top most element of the stack
FLDLG2
;Pop the element from the stack
Fstp dl
;displaying the value
Mov ah,02h
Int 21h
Loop Loop1

Mov ah,4ch
Int 21h
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mmahima2002 is offline Offline
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since Apr 2007

This thread is more than three months old

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