VPOKE,VPEEK AND ....

HELLO,I WANT A WEBSITE WITH ENGLISH LANGUAGE TO EXPLAIN THE COMMANDS VPOKE,VPEEK,DEFUSR,USR,POKE,PEEK IN DETAILS

THANKS

- POKE address, number
This command allow put in a RAM address the byte you want. In MSX 1.0 BASIC address below 8000H was hiden by Basic interpreter.
Range: address 0000H to FFFFH (0 to 65535)
number 00H to FFH (0 to 255)
Syntax: for hexadecimal numbers: POKE &HF34C, &HC9
for decimal numbers: POKE 60123, 125

- PEEK (address)
This command return the value of a given address. Range and syntax are similar.

- VPOKE and VPEEK
Similar to POKE and PEEK but for VRAM (Video RAM)

- DEF USR (n) = address
Set a start point for a assembler code.

- a = USR (n)
Run the assembler code.
DISCLAIMER: DO NOT TRY THIS if you are not sure about what are you doing!

Fupis
SP, Brazil

For more information about POKE and PEEK and other MSX BASIC commands, write to

ayfugita [dot] cadastros [at] gmail [dot] com

Fupis,
SP, Brazil