RABAGLIATIA@isnet.inmos.com (ANDY RABAGLIATI) (02/27/91)
This is the list of Transputer variants, and their respective
instruction sets.
T212 T222 T225 T400 T414 T425 T800 T801 T805
Memory Kbytes 2 4 4 2 2 4 4 4 4
T4 Float P. X X X
T8 Float P. X X X
Blk Move X X X X X
Breakpoint X X X X X
TPID A rev X X 40 50 X 00 X 20 10
The TPID numbering scheme allows for 10 revisions. Thus the T400B
is 51. (Actually, the T400A was a quick hack of a T425, so it
has a T425 TPID). The TPIDs marked X have unique effects on their
respective Transputers, but not as simple as pushing a unique number.
(It was a retro-fitted instruction!)
Cheers, Andy.
conor@lion.inmos.co.uk (Conor O'Neill) (03/04/91)
In article <1110.9102261633@inmos-c.inmos.com> RABAGLIATIA@isnet.inmos.com
(ANDY RABAGLIATI) writes a list of transputer variants.
Here I add some extra information.
This is the list of Transputer variants, and their respective
instruction sets.
T212 T222 T225 T400 T414 T425 T800 T801 T805
Memory Kbytes 2 4 4 2 2 4 4 4 4
T4 Float P. X X X
T8 Float P. X X X
2-D Blk Move X X X X X
Breakpoint X X X X X
TPID A rev X X 40 50 X 00 X 20 10
FMUL X X X X X X
DUP/WSUBDB X X X X X X
CRC/BITCOUNT X X X X X X
FPTESTERR * * X X X
Bytes per word 2 2 2 4 4 4 4 4 4
MemStart(words)18 18 18 28 18 28 28 28 28
MemStart(hex) %24 %24 %24 %70 %48 %70 %70 %70 %70
The TPID numbering scheme allows for 10 revisions. Thus the T400B
is 51. (Actually, the T400A was a quick hack of a T425, so it
has a T425 TPID). T212, T222 and T414 all do nothing when executing
LDDEVID. T800 pops C into B and trashes A.
(It was a retro-fitted instruction!)
The FPTESTERR instruction returns TRUE (meaning the FPU flag wasn't set)
on the T425 and T400 transputers. This means that the same bootstrap
can be used as on the T8 series, where this instruction is used to clear
the FPU error flag.
MemStart - the notation %hh means that this hex value should be added
to MOSTNEG INT. EG. on a T414 %48 means #80000048.
---
Conor O'Neill, Software Group, INMOS Ltd., UK.
UK: conor@inmos.co.uk US: conor@inmos.com
"It's state-of-the-art" "But it doesn't work!" "That is the state-of-the-art".