Difference between revisions of "83Plus:BCALLs:4C42"
From WikiTI
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ld hl,0 | ld hl,0 | ||
ld (penCol),hl | ld (penCol),hl | ||
| − | ld | + | ld l,'A' |
| − | + | ||
add hl,hl ;*2 | add hl,hl ;*2 | ||
add hl,hl ;*4 | add hl,hl ;*4 | ||
Revision as of 23:13, 18 December 2006
Synopsis
Unofficial Name: VPutMapRec
BCALL Address: 4C42
Displays the character data at sFont_record at the current screen coordinates (the same as VPutMap).
Inputs
- sFont_record = character data
- penRow = row to display at
- penCol = column to display at
Outputs
- Character is displayed
Destroys
- Unknown
Comments
This routine works exactly the same as VPutMap except that it uses the character data at sFont_record instead of a character equate in A. In theory, this means you can draw any character or sprite you can think up (within reason).
It will reset fracDrawLFont,(iy+fontFlags) many times, even more times if A = 8 (for whatever reason).
Example
Example code to display a capital A in the top left corner of the screen:
ld hl,0 ld (penCol),hl ld l,'A' add hl,hl ;*2 add hl,hl ;*4 add hl,hl ;*8 B_CALL Load_SFont ;load font data for 'A' to sFont_record B_CALL VPutMapRec ;display sFont_record data ...
