izaya
/
collapseos
mirror of https://github.com/hsoft/collapseos.git
1
0
Fork 0
Code Issues Releases Wiki Activity
collapseos/blk/082

17 lines
430 B
Plaintext
Raw Normal View History

Replace the "> " prompt with the more traditional "ok" one This is more than cosmetic, it's also highly usable. The presence or absence of the "ok" message allows us to know whether the command aborted. Previously, the "> " prompt appeared when the system expected a prompt in the INTERPRET context, whether the previous command aborted or not. Also, this allows us to get rid of that ugly FLAGS global variable.
2020-04-25 02:10:07 +10:00
INITIAL_SP holds the initial Stack Pointer value so
Move notes.txt in blk
2020-04-15 04:25:14 +10:00
that we know where to reset it on ABORT
CURRENT points to the last dict entry.
HERE points to current write offset.
IP is the Interpreter Pointer
PARSEPTR holds routine address called on (parse)
Stop LOADing on ABORT This is done by adding a "C<* override" layer that is reset to 0 on ABORT. The problem was that when ABORT happened during a LOAD, we had a resetted RSP and started from a clean INTERPRET, but LOAD didn't have the opportunity to restore C<*, which caused it to continue interpreting from the faulty BLK. With a C<* override, we don't need to *restore* C<*, we just need to clear the override.
2020-04-25 04:10:40 +10:00
C<* holds routine address called on C<. If the C<* override
at 0x08 is nonzero, this routine is called instead.
Replace the "> " prompt with the more traditional "ok" one This is more than cosmetic, it's also highly usable. The presence or absence of the "ok" message allows us to know whether the command aborted. Previously, the "> " prompt appeared when the system expected a prompt in the INTERPRET context, whether the previous command aborted or not. Also, this allows us to get rid of that ugly FLAGS global variable.
2020-04-25 02:10:07 +10:00
Move notes.txt in blk
2020-04-15 04:25:14 +10:00
(cont.)