Puts a value into a given memory address
Implemented by: altair8K, a2int, Applesoft, CBM, Atari, msatari, level2, trscolor, colormc, Sinclair, GWBASIC, MSX, ABasiC, QBasic, VBDOS, FreeBASIC
With variations: altair12K (requires substraction if address is > 32767), bw32
Also written as: