Editing SmartBox OS (section)

==== internal_vec ====

===== internal_vec 0 =====

{|class="calltable"
|Purpose||
Nothing
|-
|Entry||
* A = 0
* X, Y, c, z = undefined
|-
|Exit||
Leave everything as it is and exit straight away
|-
|Note||
Used for claimed calls
|}

===== internal_vec 1 =====

{|class="calltable"
|Purpose||
NameCode request
|-
|Entry||
* A = 1
* X, Y, c, z = undefined
* jobin_buf contains JobName (CR terminated)
|-
|Exit||
* if JobName recognised then
** A = 0
** first byte of jobin_buf contains matched JobCode
* if JobName not recognised then
** A = 1
** X, Y, c, z = undefined
|}

===== internal_vec 2 =====

{|class="calltable"
|Purpose||
CodeName request
|-
|Entry||
* A = 2
* X, Y, c, z = undefined
* jobin_buf contains JobCode
|-
|Exit||
* if JobCode recognised then
** A = 0
** jobin_buf contains matched JobName (CR terminated)
* if JobCode not recognised then
** A = 2
** X, Y, c, z = undefined
|}

All other calls (ie.  not 0, 1 or 2 should be passed on straight
away for future expansion)