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0c47ce79af
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30 Commits

Author SHA1 Message Date
jn
0c47ce79af Allow specifying width on zero-operand instructions 
nop.8 exists and is valid, so fox32asm should assemble it.

It might be a good idea to reject some invalid instructions, though,
such as out.8.
 2023-02-01 23:34:37 +01:00
jn
2c932cef4b Print parse errors in a somewhat nicer way 
Before:

	fox32asm 0.3.0 (94dd0fe)
	Generating raw binary
	Parsing includes...
	Parsing file...
	thread 'main' panicked at 'parse was unsuccessful: Error { variant: ParsingError { positives: [EOI, origin, include_bin, data, constant, label_kind, size, instruction], negatives: [] }, location: Pos(4), line_col: Pos((1, 5)), path: None, line: "nop 42␊", continued_line: None }', src/main.rs:529:60
	note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

After:

	fox32asm 0.3.0 (2abba95)
	Generating raw binary
	Parsing includes...
	Parsing file...
	Error {
	    variant: ParsingError {
		positives: [
		    EOI,
		    origin,
		    include_bin,
		    data,
		    constant,
		    label_kind,
		    size,
		    instruction,
		],
		negatives: [],
	    },
	    location: Pos(
		4,
	    ),
	    line_col: Pos(
		(
		    1,
		    5,
		),
	    ),
	    path: None,
	    line: "nop 42␊",
	    continued_line: None,
	}
 2023-02-01 23:34:37 +01:00
Ry
ebdf8e3ac5
Merge pull request #7 from neuschaefer/fixes 
Fixes for data directives
 2023-02-01 13:45:14 -08:00
jn
fc925e577d Assemble data.8 CONST_LABEL correctly as one byte 
Fixes #5
 2023-02-01 21:24:11 +01:00
jn
e59e0ef83d Reset CURRENT_SIZE to Size::Word before parsing a data directive 
Previously, the following program:

	push.16 0
	data.16 0

... crashed fox32asm:

	thread 'main' panicked at 'internal error: entered unreachable code', src/main.rs:620:22
	stack backtrace:
	   0: rust_begin_unwind
		     at /usr/src/rustc-1.63.0/library/std/src/panicking.rs:584:5
	   1: core::panicking::panic_fmt
		     at /usr/src/rustc-1.63.0/library/core/src/panicking.rs:142:14
	   2: core::panicking::panic
		     at /usr/src/rustc-1.63.0/library/core/src/panicking.rs:48:5
	   3: fox32asm::parse_data
	   4: fox32asm::build_ast_from_expression
	   5: fox32asm::main
	note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

The issue in line 620 is that parse_data expects a constant in the form
of AstNode::Immediate32, but finds an AstNode::Immediate16, because
CURRENT_SIZE was previously set to Half. Set CURRENT_SIZE to Word when
starting to parse a new data directive, in order to fix this issue.

Fixes #4
 2023-02-01 21:22:24 +01:00
jn
eb32be33c8 Add data.strz directive for zero-terminated strings 
A common pattern in fox32 software is this:

	data.str "Some string here" data.8 0

i.e. a zero- or NUL-terminated string. To make such strings easier to
write, introduce a new directive data.strz, which adds the zero byte
automatically:

	data.strz "Some string here"
 2023-02-01 19:59:24 +01:00
Ry
abd160e6e5 Add support for imul, idiv, and irem 2023-01-27 15:21:40 -08:00
Ry
b40c8d50b6 Error and exit if a label is defined more than once 
Fixes issue #2
 2023-01-22 17:25:28 -08:00
jn
cc4b819d6b Include filename in error message when #include fails 2023-01-20 15:30:17 +01:00
Ry
cc4242b1fe Allow using constants in data.8 and data.16 2022-10-12 13:32:14 -07:00
Ry
7d1f636239 Add rfp register support 2022-09-18 16:34:14 -07:00
Ry
aae6632dfd Add support for the resp register 2022-09-16 17:40:00 -07:00
Ry
4afe69ed10 Add FLP instruction 2022-09-13 17:37:42 -07:00
Ry
b35bc82cf7 Add mse, mcl, and tlb instructions, bump version to 0.3.0 2022-08-15 17:22:40 -07:00
Ry
ee98141e1d Add int instruction, bump version to 0.2.0 2022-08-09 01:43:13 -07:00
Ry
a6fc3f9762 Don't add relative labels to FXF's reloc table 2022-07-25 00:17:16 -07:00
Ry
9c79b3bba2 Remove unused extern and global tables from FXF 2022-06-21 19:04:31 -07:00
Ry
983b619a70 Print address table after assembling 2022-06-21 18:27:16 -07:00
Ry
c23666161b fox32+fox32asm: Remove pow instruction 2022-05-30 00:48:19 -07:00
Ry
07a0026207 fox32asm: Add data.fill 2022-05-30 00:31:41 -07:00
Ry
8c24fe585c fox32asm: Start implementing FXF support 
Currently this only supports relocation.
 2022-05-19 14:25:29 -07:00
Ry
74b080994a fox32asm: Ensure consts are always Immediate32 2022-04-17 17:03:20 -07:00
Ry
9fb445f688 fox32+fox32asm: Add proper support for greater than and less than 
This adds IFGT, IFGTEQ, IFLT, and IFLTEQ, which makes it easier to
check for these conditions.
 2022-03-12 12:15:27 -08:00
Ry
492e8d51a1 fox32asm: Allow underscores in immediate values 
Co-authored-by: Lua <lua@foxgirl.dev>
 2022-03-12 11:58:00 -08:00
ry755
637e62ff38 fox32asm: Allow any character to be escaped in strings with '\' 2022-02-22 13:31:51 -08:00
ry755
0ec2787e0b fox32+fox32asm: Make ImmediatePtr encoding consistent for src and dest 2022-02-02 04:43:23 -08:00
ry755
d0538c59e8 fox32asm: Allow labels to be used in sized instructions 
Previously this would cause the CPU to panic with an invalid opcode
error, due to messed up alignment
 2022-02-01 22:00:58 -08:00
ry755
94e02b8f09 fox32asm: Increase the max include limit from 8 to 128 
The whole include system is just a huge hack, this really needs to be
replaced at some point.
 2022-01-31 21:50:01 -08:00
ry755
efdb08aba5 fox32asm: Show version info on startup 2022-01-27 18:35:15 -08:00
ry755
eeafe0cbb2 Initial commit 
I should've made a git repo for this much sooner, oops :p
 2022-01-26 22:21:21 -08:00