Difference between revisions of "83Plus:BCALLs:804B"
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| − | [[Category:83Plus:BCALLs:By Name:Math| | + | [[Category:83Plus:BCALLs:By Name:Math:Integer|Divide16By16]] [[Category:83Plus:BCALLs:By Name:Math|Divide16By16]] [[Category:83Plus:BCALLs:By Name|Divide16By16]] [[Category:83Plus:BCALLs:By Address|804B - Divide16By16]] |
| − | [[Category:83Plus:BCALLs:By Name| | + | |
| − | [[Category:83Plus:BCALLs:By Address|804B - | + | |
== Synopsis == | == Synopsis == | ||
| − | '''Official Name:''' DivHLbyDE | + | '''Official Name:''' Divide16By16 |
| + | |||
| + | '''Other Name:''' DivHLbyDE | ||
'''BCALL Address:''' 804B | '''BCALL Address:''' 804B | ||
| − | Divides register HL by register DE and stores the result in DE. | + | Divides register HL by register DE and stores the result in DE and the remainder in HL. |
=== Inputs === | === Inputs === | ||
* HL = numerator | * HL = numerator | ||
* DE = denominator | * DE = denominator | ||
| − | |||
=== Outputs === | === Outputs === | ||
* DE = HL / DE | * DE = HL / DE | ||
| + | * HL = HL % DE | ||
=== Destroys === | === Destroys === | ||
| − | * | + | * A, IX, HL, DE |
* Contents of memory addresses 8251h - 8253h | * Contents of memory addresses 8251h - 8253h | ||
| Line 25: | Line 25: | ||
== Example == | == Example == | ||
| − | ld hl, | + | ld hl,A1Dh |
ld de,103h | ld de,103h | ||
| − | B_CALL DivHLbyDE ;should return | + | B_CALL DivHLbyDE ;should return DE=9 HL=102h |
Latest revision as of 20:31, 29 March 2005
Synopsis
Official Name: Divide16By16
Other Name: DivHLbyDE
BCALL Address: 804B
Divides register HL by register DE and stores the result in DE and the remainder in HL.
Inputs
- HL = numerator
- DE = denominator
Outputs
- DE = HL / DE
- HL = HL % DE
Destroys
- A, IX, HL, DE
- Contents of memory addresses 8251h - 8253h
Comments
Simple enough to implement yourself if speed is important.
Example
ld hl,A1Dh ld de,103h B_CALL DivHLbyDE ;should return DE=9 HL=102h
