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collapseos
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12 Commits

Author SHA1 Message Date
Virgil Dupras d996dd8c9e Add one layer of indirection in subsystem memory management 
This allows optional subsystems to not needlessly reserve too much
system memory and it also reduces offsets bookkeeping.
 2020-04-12 20:42:00 -04:00
Virgil Dupras 420836276d readln: rename (c<) to (rdln<) 
so that it isn't picked up automatically at boot. Only when (c<$) is
called do we override (c<). This fixes tricky boot problems.
 2020-04-12 14:01:54 -04:00
Virgil Dupras 6368cc3bac Remove (sysv) 
Replace its usages with direct RAM+ offsets. The (sysv) mechanism was
incompatible with cross-compilation of a full interpreter.
 2020-04-10 14:57:00 -04:00
Virgil Dupras 58e88119ec rc2014: Forth Collapse OS, fully operational! 2020-04-05 09:09:00 -04:00
Virgil Dupras edb2771488 rc2014: bingo! 
Interpreter is functional in the emulator!
 2020-04-04 17:43:00 -04:00
Virgil Dupras 32b420b19c readln: fix typo 2020-04-04 14:26:41 -04:00
Virgil Dupras 435b4f452c Move ASCII constants from str unit to print 2020-04-04 10:28:00 -04:00
Virgil Dupras e284081c79 forth: fix readln overflow handling 
It was badly handled.
 2020-04-02 13:40:22 -04:00
Virgil Dupras c2d8fc845d forth: bring ." and ABORT" down to core.fs level 2020-03-25 20:39:07 -04:00
Virgil Dupras 3e934a2a3b forth: fix name conflict with "H" in core and z80a 2020-03-25 20:13:33 -04:00
Virgil Dupras 9791c0957d forth: make readline skip prompt when appropriate 2020-03-21 14:59:12 -04:00
Virgil Dupras c1ece95089 forth: implement readline in Forth 
The commit ended up being much bigger than anticipated. This was a long thread
of underlying complexities. This lead to the creation of interesting concepts
such as (sysv).
 2020-03-21 12:57:49 -04:00