Difference between revisions of "83Plus:BCALLs:450A"
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== Comments == | == Comments == | ||
| − | Since HL points to the character after the terminating zero of the string when the call is finished, you can put multiple strings in a row and display them all with calls to PutS. See the example. | + | * Since HL points to the character after the terminating zero of the string when the call is finished, you can put multiple strings in a row and display them all with calls to PutS. See the example. |
| + | * This B_CALL disables interrupts. | ||
== Example == | == Example == | ||
Latest revision as of 10:21, 1 January 2010
Synopsis
Official Name: PutS
BCALL Address: 450A
Displays a string on the screen in the large font.
Inputs
Outputs
- String displayed on screen
- HL points to character after terminating zero of string
Destroys
None
Comments
- Since HL points to the character after the terminating zero of the string when the call is finished, you can put multiple strings in a row and display them all with calls to PutS. See the example.
- This B_CALL disables interrupts.
Example
ld hl,0 ld (curRow),hl ld hl,string1 BCALL(PutS) BCALL(PutS) ;hl points to string2 at this point BCALL(PutS) ;hl points to string3 at this point ret string1: .db "This is a string ",0 string2: .db "This is another string ",0 string3: .db "Yet another string...",0
All three strings will be displayed in order, starting from the top-left corner of the screen.
