Table of Contents
Note: This IBM PC BIOS API call is for DOS/Win16 personality only. Use Family API for portability.
Note: osFree Macro Library provides macros for most of functions
Int 10H, AH=0EH
Version
IBM 5150 and higher
Brief
Write in TTY mode
osFree Macro Library
Family API
Parameters
- AH = 0Eh
- AL = character to write
- BH = page number
- BL = foreground color (graphics modes only)
Return
Macro
INCLUDE BIOS.INC @WrtTTY 'A', 0
Notes
- characters 07h (BEL), 08h (BS), 0Ah (LF), and 0Dh (CR) are interpreted and do the expected things
- IBM PC ROMs dated 1981/4/24 and 1981/10/19 require that BH be the same as the current active page
- if the write causes the screen to scroll, BP is destroyed by BIOSes for which AH=06h destroys BP
- Text based on Ralf Brown Interrupt List Release 61
| IBM PC BIOS API | |
|---|---|
| Video I/O | INT 10H: 00H, 01H, 02H, 03H, 05H, 06H, 07H, 08H, 09H, 0AH, 0BH, 0CH, 0DH, 0EH, 0FH |
| Hardware info | INT 11H, INT 12H |
| Serial I/O | INT 14H: 00H, 01H, 02H, 03H |
| Tape I/O | INT 15H: 00H, 01H, 02H, 03H |
| Keyboard I/O | INT 16H: 00H, 01H, 02H |
| Printer I/O | INT 17H: 00H, 01H, 02H |
| Disk I/O | INT 13H: 00H, 01H, 02H, 03H, 04H, 05H |
| Date and Time | INT 1AH: 00H, 01H |
| osFree Macro Library | |
|---|---|
| Video I/O | @SetMode @SetCurSz @SetCurPos @GetCur @SetPage @ScrollUp @ScrollDn @Scroll @GetChAtr @PutChAtr @PutCh @SetPalet @SetColor @SetDot @GetDot @WrtTTY @VideoState @GetMode @GetDisplay @GetVideoState @GetEGAInfo @Cls |
| Hardware info | @Equipment @MemSize |
| Serial I/O | @AuxInit @AuxSendChar @AuxRecieveChar @AuxStatus |
| Tape I/O | @TapeOn @TapeOff @TapeRead @TapeWrite |
| Keyboard I/O | @KbdStatus @CharIn @CharPeek |
| Printer I/O | @PrnPrint @PrnInit @PrnStatus |
| Disk I/O | @DskReset @DskStatus @DskRead @DskWrite @DskVerify @DskFormat |
| Date and Time | @SetTime @GetTime |
| Mouse | @MouInit @MouShowPointer @MouStatus @MouSetPos @MouSetMickey @MouRegion |
| Memory manager | @ModBlok SET_BLOCK |