Difference between revisions of "83Plus:BCALLs:4060"
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| − | [[Category:83Plus:BCALLs:By Name:FP_Util|Trunc]] [[Category:83Plus:BCALLs:By Name|Trunc] [[Category:83Plus:BCALLs:By Address|4060 - Trunc]] | + | [[Category:83Plus:BCALLs:By Name:FP_Util|Trunc]] [[Category:83Plus:BCALLs:By Name|Trunc]] [[Category:83Plus:BCALLs:By Address|4060 - Trunc]] |
== Synopsis == | == Synopsis == | ||
'''Official Name:''' Trunc | '''Official Name:''' Trunc | ||
| Line 5: | Line 5: | ||
'''BCALL Address:''' 4060 | '''BCALL Address:''' 4060 | ||
| − | Truncates the fractional part of a floating point number in | + | Truncates the fractional part of a floating point number in [[83Plus:RAM:8478|OP1]]. |
=== Inputs === | === Inputs === | ||
| − | * | + | * OP1 = floating point number |
=== Outputs === | === Outputs === | ||
| − | * | + | * OP1 = integer part of floating point number |
=== Registers Destroyed === | === Registers Destroyed === | ||
| Line 20: | Line 20: | ||
== Example == | == Example == | ||
| − | Suppose | + | <nowiki>Suppose OP11=00h,80h,28h,00h,... |
| − | After B_CALL Trunc, | + | After B_CALL Trunc, OP1=00h,80h,20h,00h,... |
| − | Suppose | + | Suppose OP1=00h,7Fh,20h,00h,... |
| − | After B_CALL Trunc, | + | After B_CALL Trunc, OP1=00h,80h,00h,00h,...</nowiki> |
Latest revision as of 08:15, 21 April 2005
Synopsis
Official Name: Trunc
BCALL Address: 4060
Truncates the fractional part of a floating point number in OP1.
Inputs
- OP1 = floating point number
Outputs
- OP1 = integer part of floating point number
Registers Destroyed
- AF, BC, DE, HL
Comments
This is similar to the BASIC function int().
Example
Suppose OP11=00h,80h,28h,00h,... After B_CALL Trunc, OP1=00h,80h,20h,00h,... Suppose OP1=00h,7Fh,20h,00h,... After B_CALL Trunc, OP1=00h,80h,00h,00h,...
