Effect

Modifies the standark 'Ok' prompt and saves the new prompt in the SRAM of the Real Time Clock (RTC).

Syntax

SET PROMPT <Prompt>

Parameter

<Prompt> is a string (between quotes) or a string variable. Only the 6 first characters will be displayed after each MSX-BASIC command in direct mode.

Remark: SET PASSWORD and SET TITLE use also such a string of characters. Only the last entered instruction will be saved in the Real Time Clock (RTC).

Examples

SET PROMPT "hello!"

SET PROMPT "" ' to get an empty prompt

Storage in the RTC

The Real Time Clock (RTC) is a small storage of 53 bytes in blueMSX (52 bytes in openMSX). However, the Russian Yamaha computers with network have an additionnal byte that comes after #26 in blueMSX, so, for these machines, #27 to #34 are replaced by #28 to #35 in blueMSX.

The data saved with SET PROMPT are stored as follows (hexadecimal locations in the files):

• #28 in blueMSX (#27 in openMSX)

This byte has always the value 02 when the string of characters X$ is used for SET PROMPT

• #29 to #34 in blueMSX (#28 to #33 in openMSX)

These bytes store the 6 first characters of the string X$, by using 2 bytes for saving the ASCII code of each character.

Example with SET PROMPT "hello!"

- #29: 08 - #2A: 06 - ASCII code of 'h' is 68
- #2B: 05 - #2C: 06 - ASCII code of 'e' is 65
- #2D: 0C - #2D: 06 - ASCII code of 'l' is 6C
- #2E: 0C - #30: 06 - ASCII code of 'l' is 6C
- #31: 0F - #32: 06 - ASCII code of 'o is 6F
- #33: 01 - #34: 02 - ASCII code of '!' is 21

Related to

SET PASSWORD, SET TITLE

Compatibility

MSX-BASIC 2.0 or higher