Difference between revisions of "83Plus:BCALLs:4264"
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'''BCALL Address:''' 4264 | '''BCALL Address:''' 4264 | ||
| − | Performs a fast divide by 10 on | + | Performs a fast divide by 10 on [[83Plus:RAM:8478|OP1]]. |
=== Inputs === | === Inputs === | ||
| − | * | + | * [[83Plus:RAM:8478|OP1]] = floating point number |
=== Outputs === | === Outputs === | ||
| − | * | + | * [[83Plus:RAM:8478|OP1]] = OP1 / 10 |
=== Registers Destroyed === | === Registers Destroyed === | ||
| Line 17: | Line 17: | ||
== Comments == | == Comments == | ||
| − | This function divides | + | This function divides OP1 by 10. This is done by decrementing the exponent. Checks are performed to prevent an underflow. This is much faster than FPDiv when OP2=10. |
== Example == | == Example == | ||
| − | Suppose | + | Suppose OP1=00h,80h,10h,00h,... |
| − | After B_CALL | + | After B_CALL FDiv10, OP1=00h,7Fh,10h,00h,... |
Latest revision as of 08:43, 8 April 2005
Synopsis
Official Name: FDiv10
BCALL Address: 4264
Performs a fast divide by 10 on OP1.
Inputs
- OP1 = floating point number
Outputs
- OP1 = OP1 / 10
Registers Destroyed
- A
Comments
This function divides OP1 by 10. This is done by decrementing the exponent. Checks are performed to prevent an underflow. This is much faster than FPDiv when OP2=10.
Example
Suppose OP1=00h,80h,10h,00h,... After B_CALL FDiv10, OP1=00h,7Fh,10h,00h,...
