312 Commits

Author	SHA1	Message	Date
Virgil Dupras	279f6e0ad8	zasm: invert emulator io_write() handling ... This facilitates debugging. To know the value of `A` at any point, you can do `out (0), a`. The number of bytes in the output will be the value of `A`.	2019-04-17 10:34:30 -04:00
Virgil Dupras	9b556c8883	zasm: support "special" groups and groups in arg2	2019-04-17 10:34:10 -04:00
Virgil Dupras	a7538473e4	zasm: add support for variable arguments	2019-04-17 08:23:01 -04:00
Virgil Dupras	38e40bfc16	zasm: make the instruction table fixed ... Looping is easier	2019-04-16 22:46:04 -04:00
Virgil Dupras	8cd400651a	zasm: read each argument immediately insto an argspec ... Previously, we would go the other way around: match all available argspecs to raw argument strings. It's much better to go the other way around because we can "reduce" each argument much sooner. That will be important when we start to support constants and expressions.	2019-04-16 22:40:07 -04:00
Virgil Dupras	1f94b6c3f7	zasm: can now match all "constant" primary opcodes	2019-04-16 20:32:30 -04:00
Virgil Dupras	453cf3d74a	zasm: start matching args ... We now properly match arg-less operations.	2019-04-16 19:40:37 -04:00
Virgil Dupras	b3af6e0115	zasm: reuse code from core	2019-04-16 17:00:19 -04:00
Virgil Dupras	9acca52e44	zasm: begin parsing with easy pickings ... Single opcodes that yield constants. "echo ret | zasm" yields 0xc9.	2019-04-16 16:49:47 -04:00
Virgil Dupras	88cee235b1	zasm: have a whole kernel in emulation instead of a simple wrapper ... zasm is going to need to call to kernel code...	2019-04-16 14:26:45 -04:00
Virgil Dupras	43c1005d61	zasm: implement stdin/stdout in emulator	2019-04-16 13:59:19 -04:00
Virgil Dupras	1ae2331763	Add zasm app ... For now, only a dummy app, but it's emulated properly with libz80. Exciting times!	2019-04-16 13:36:57 -04:00