24 Sep
2015
24 Sep
'15
6:16 a.m.
On 2015-09-24 3:04 AM, ben wrote:
On 9/23/2015 11:22 PM, Eric Smith wrote:
Depends on the Pascal. Apple chose (Object) Pascal as its principal
systems and applications programming language for at least a decade
(Lisa, 68K Mac, etc), and its memory addressing capabilities, in
particular byte arrays, were equivalent to C's. Many other Pascals had
similar extensions (I seem to recall Turbo Pascal did).
--Toby
ISO/IEC 9899:1999(E) ?3.6 ?1 - a byte has to hold
any member of the
basic character set
ISO/IEC 9899:1999(E) ?3.7.1 ?1 - a character is a C bit representation
that fits in a byte
ISO/IEC 9899:1999(E) ?5.2.4.2.1 ?1 - the size of a char is CHAR_BIT
bits, which is at least 8
ISO/IEC 9899:1999(E) ?6.2.6.1 ?2-4 - everything other than bitfields
consists of bytes
Bla Bla Bla ...
What happened to seven bit ASCII?
I think the major change in C from the OTHER programing languages
is BYTE addressing. Even Pascal from what I have seen packs characters
in words of some kind. That is main dividing line in how memory
can be accessed. char *ptr++ vs array(foo-1)
0-99 can hold a trimmed character set and 10 digits per int.
5 chars per word sounds right on decimal machine.
Logic operations would be on the digit rather the binary
level. This may not be standard C but I has the early
PDP 11 C feel if they I developed UNIX on decimal machine.
Ben.