26 Apr
2002
26 Apr
'02
6:02 a.m.
> > I don't know about the /360, but the the
/370 and /390 used 8-bit bytes,
> > 32-bit words, and 31-bit (!) addressing.
> /360 16 Bit address NO, 24 bit !!!
> /370 24 Bit address
> /390 24 or 31 Bit address
> All architectures had 8 Bit Bytes and 32 Bit
Registers
/360 24 bit addresses, 8 bit bytes 32 bit registers
Shure that you don't mangle up /360 and /370 ?
The Addresscalculation as Register Field plus 12 Bit offset in the
16 Bit operand field of an instruction was already an extension.
Gruss
H.
--
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