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# 09jul24 Software Lab. Alexander Burger
### Primary data types ###
cnt xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxS010
big xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxS100
sym xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1000
pair xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx0000
Bignum
|
V
+-----+-----+
| DIG | | |
+-----+--+--+
|
V
+-----+-----+
| DIG | | |
+-----+--+--+
|
V
+-----+-----+
| DIG | CNT |
+-----+-----+
Pair
|
V
+-----+-----+
| CAR | CDR |
+-----+-----+
Symbol
|
V
+-----+-----+ +-----+-----+
| | | VAL | |'cba'|'fed'|
+--+--+-----+ +-----+-----+
| tail ^
| |
V | name
+-----+-----+ +-----+-----+ +-----+--+--+
| | | ---+---> | KEY | ---+---> | | | | |
+--+--+-----+ +-----+-----+ +--+--+-----+
| |
V V
+-----+-----+ +-----+-----+
| VAL | KEY | | VAL | KEY |
+-----+-----+ +-----+-----+
NIL: /
|
V
+-----+-----+-----+-----+
|'LIN'| / | / | / |
+-----+-----+-----+-----+
Symbol tail
Internal/Transient
0010 Short name
0100 Long name
0000 Properties
External
1010 Short name
1000 Properties
Name final short
Internals, Transients
0000.xxxxxxx.xxxxxxx.xxxxxxx.xxxxxxx.xxxxxxx.xxxxxxx.xxxxxxx0010
60 52 44 36 28 20 12 4
Externals
42 bit Object (4 Tera objects)
16 bit File (64 K files)
2 bit Status
Loaded 01........
Dirty 10........
Deleted 11........
1+2 Bytes: 1 file, 64K objects {177777}
1+3 Bytes: 16 files, 1M objects {O3777777}
1+4 Bytes: 256 files, 16M objects {OO77777777}
1+5 Bytes: 256 files, 4G objects {OO37777777777}
1+6 Bytes: 65536 files, 4G objects {OOOO37777777777}
1+8 Bytes: 65536 files, 4T objects {OOOO77777777777777}
(2 + 10 + 8 + 12 + 8 + 20)
xx.xxxxxxxxx.xxxxxxx.xxxxxxxxxxx.xxxxxxx.xxxxxxxxxxxxxxxxxxxE010
obj file obj file obj
^6 ^5 ^4 ^3 ^2
### Heap ###
Heaps, Avail
|
| +-----------------------+
| | |
V | V
+--+--+-----+-----+-----+-----+-----+--- ---+-----+-----+-----+
| | | | | / | | ... | | | | | |
+-----+-----+-----+-----+-----+-----+--- ---+--+--+-----+--+--+
| |
| +-----> Heaps
|
+-----> Avail
### Stack ###
Saved values:
^
|
+---- LINK
val <-- Link
Bind frame:
^
Expr |
LINK ----+
@
+---> [@]
|
+---- LINK
sym1
+---> val1
.
.
+---- LINK
symN
valN <-- Bind
VarArgs frame:
[Bind frame]
^
|
+---- LINK
arg1 <------------+
+------- <-- Next |
| |
| LINK -------------+
| +-> arg2
+-|-> ----------------+
| |
+-- LINK |
arg3 <-- Link |
/ <------------+
Apply args:
^
|
+---- LINK
fun <---+ <-----+
zero | |
+---- cdr | |
| car ----+ <-- E |
| |
| LINK -------------+
| +-> val1 <---+
| | zero |
| | cdr1 ----|-----+
+---> car1 ----+ |
| |
+-- LINK |
+---> valN <-- Link |
| zero |
| / |
+---- carN <---------+
I/O frame:
^
put/get |
pid |
fd |
LINK ----+ <-- InFrames, OutFrames, ErrFrames, CtlFrames
Catch frame:
^
[rst] |
[env] |
... |
co |
fin |
tag |
LINK ----+ <-- Catch
Coroutine:
[rst]
[env]
...
[@]
lim
prg
otg
org
+---- nxt
| tag <----- Coroutines
|
|
| [rst]
| [env]
| ...
| [@]
| lim
| prg
| otg
| org
| nxt
+---> tag
IPC pipes:
+--------------------------+ Mic
|
| +-----------------+ Tell <Child>
| |
| +-----------------> Hear
<Parent> | |
| |
Spkr <---+ |
| |
| |
| +-----------------+ Tell
| |
| +-----------------> Hear <Child>
|
+--------------------------+ Mic
### Database file ###
+-------------+-+-------------+-+----+
Block 0: | Free 0| Next 0| << |
+-------------+-+-------------+-+----+
0 BLK 2*Blk+1
+-------------+-+
Free: | Link 0|
+-------------+-+
0
+-------------+-+----
ID-Block: | Link 1| Data
+-------------+-+----
0 BLK
+-------------+-+----
EXT-Block: | Link n| Data
+-------------+-+----
0 BLK
### Assumptions ###
- 8 bit per byte
- 64 bit per word
- Pointer size is 64 bit
- Stack grows downwards
- sizeof(float) = 4 bytes
- sizeof(double) = 8 bytes
|
