Virgil Dupras
7083116379
zasm: remove JUMP_ prefixes
...
They serve no purpose and make the code less flexible.
2019-05-17 09:50:11 -04:00
Virgil Dupras
2f0dd5d668
zasm: iiiiiiiincluuuuuuudes!!1!
2019-05-16 21:15:00 -04:00
Virgil Dupras
e9244b80ee
zasm: big I/O overhaul
...
Instead of buffering input in memory one line at a time, we go in "just
in time" mode and always read contents directly from I/O, without
buffering.
It forces us to implement a `ioPutback` scheme, but on the other hand it
greatly simplifies cases where multiple tokens are on the same line
(when a label is directly followed by an instruction).
The end result feels much more solid and less hackish.
2019-05-16 07:53:42 -04:00
Virgil Dupras
72d2a8f073
zasm: add support for + expressions
2019-05-14 15:26:29 -04:00
Virgil Dupras
a486a2a81e
zasm: support char literals
2019-05-14 13:53:12 -04:00
Virgil Dupras
d6f5cf5b90
zasm: fix first pass inversion bug
...
Also, confirm in tests that we can refer to other symbols in `.equ`.
2019-05-12 08:50:29 -04:00
Virgil Dupras
89848dbfe2
zasm: add support for .equ
2019-05-11 22:11:05 -04:00
Virgil Dupras
95f53d0ce3
zasm: support symbols in .dw directive
2019-05-10 21:17:19 -04:00
Virgil Dupras
f9ae5ca46b
zasm: simplify readWord calling
...
It always reads in the scratchpad with the same max size. No need for
DE-dancing anymore.
2019-05-01 14:19:43 -04:00
Virgil Dupras
6811d98618
zasm: add support for the ".dw" directive
2019-05-01 14:07:01 -04:00
Virgil Dupras
dde5161fc1
zasm: add support for ".db" directive
2019-05-01 11:26:41 -04:00
Virgil Dupras
a7693ffd86
zasm: still inching toward directives
2019-04-30 21:40:22 -04:00
