Read/Write system clock

OSWord call Action Available on:
(dec) (hex)BBC Master Electron
1 01 Read system clockx x x
2 02 Write system clockx x x

The clock is a five byte clock value is read or written to the address contained in the X and Y registers.

For example the TIME function in BASIC uses OSWORD 0x01.

This clock is incremented every hundredth of a second and is set to 0 by a hard BREAK.