For any plug-in module, the FIXED memory requirement can be determined within 2Kbytes or so, using the OS-9 ident command. An ident of plug-in cdi_sgmn reveals:
CD-i>ident cdi_sgmn
Header for: |
cdi_sgmn |
|
Module size: |
$1A5E |
#6750 |
Owner |
0.0 |
|
Module CRC: |
$8C5E41 |
Good CRC |
Header Parity: |
$2AC3 |
Good Parity |
Edition: |
$190 |
#400 |
Ty/La At/Rev |
$101 |
$8013 |
Permission: |
$555 |
e-r-e-r |
Exec off: |
$52 |
#82 |
Data size: |
$E1A |
#3610 |
Stack size: |
$C00 |
#3072 |
Init. data off: |
$18F4 |
#6388 |
Dat ref. off: |
$1A42 |
#6722 |
Prog Mod, 68000 obj, Sharable |
|
|
To get total FIXED memory usage, add the Module size, Data size, and Stack size.
In this case: 6750 + 3610 + 3072 = 13432 bytes.
Listing of common plug-in memory usages:
| Plug-in | Fixed Memory | Dynamic Memory |
|---|---|---|
| cdi_sgmn | 13K | 500bytes (program data) |
| cdi_cnss | 14K | |
| cdi_dmr | 15K | |
| cdi_irrm | 23K | size of hotspot data file created by makeiff |
| cdi_ptls | 15K | |
| cdi_tlkm | 16K | total size of sound files created by makeiff, that are loaded for the largest (sound-wise) menu. |
| cdi_dv | 43K | 140K for MPEG buffers |
| cdi_dvpl | 25K | |
| cdi_hscr | 30K | size of scroll bar image (width x height = bytes) + 500 bytes for program data. |
| cdi_menm | 12K | 500 bytes for program data |
| cdi_sv | 9K | size of string variables (number of variables x allocated length) |
| cdi_svbr | 22K | |
| cdi_svdu | 10K | |
| cdi_svstr | 20K | |
| cdi_unlk | 9K | |
| cdi_virt | 21K | size of scroll bar image (width x length = bytes) |
| cdi_popm | 29K | sizes of foreground and background pop-up images |
| cdi_pops | 13K | |
| cdi_qhyh | 17K | |
| cdi_qhyz | 31K | 39K for read buffer |
| cdi_rlhs | 17K | |
| cdi_rlvs | 17K | |
| cdi_rlan | 19K |