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Author SHA1 Message Date
Alek Ratzloff
fbe2c529af Add decoding of INT and IRET instructions 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-06 12:52:46 -05:00
Alek Ratzloff
34b1147fe6 Add int and iret instruction definitions to the VM backend 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-06 12:30:49 -05:00
Alek Ratzloff
1fb2a1df44 Add interrupts enabled flag to spec, add interrupt return actions to spec 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-06 12:19:07 -05:00
Alek Ratzloff
58262eab40 Move examples to libvm source base and add symlink to root directory 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-06 12:18:20 -05:00
Alek Ratzloff
b1f2de198e Add interrupt definition syntax and interrupt handling in VM execution state 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-06 12:17:05 -05:00
Alek Ratzloff
bf83601cdf Add interrupt struct and IVT reader 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-04 16:41:37 -05:00
Alek Ratzloff
ce352c000c Add IVT register and interrupt module 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-04 14:37:00 -05:00
Alek Ratzloff
bdd30274ed Add interrupts draft to spec 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-04 14:23:57 -05:00
Alek Ratzloff
711bfeb7f9 Squash some warnings 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-03 19:34:41 -05:00
Alek Ratzloff
bac1b413dc Remove structopt where appropriate 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-03 19:33:55 -05:00
Alek Ratzloff
5ffca7bcf0 Second part of VM lib transition 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-03 19:07:35 -05:00
Alek Ratzloff
2b8663037f First part of libvm transition 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-03 19:05:50 -05:00
Alek Ratzloff
74139b7c65 Remove defunct TODO from spec 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-03 18:34:56 -05:00
Alek Ratzloff
ef03ea9137 Update assembler infrastructure to be more modular 
Assembler has more discrete passes now, but things are kind of bare on
the error message front. But, everything is working as it did
previously, so we can move on to more interesting things.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-03-03 18:10:08 -05:00
Alek Ratzloff
ad7c22c168 Remove include_paths() methods from AsmSession 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-28 15:08:17 -05:00
Alek Ratzloff
782a2ea4e9 Remove examples/constants.asm, update deadbeef.asm to not use it 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-27 17:33:44 -05:00
Alek Ratzloff
4b96902831 Scrap preprocessor, add .include directive instead 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-27 15:52:17 -05:00
Alek Ratzloff
0eb394ddf5 Update build.rs 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-26 14:27:30 -05:00
Alek Ratzloff
381a59f5fe Clean up main.rs some, add preprocessor 
* Preprocessor uses an LRPAR generated lexer and a custom parser to
  filter comments and set defines. Includes and conditional compilation
  will come next.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-26 14:24:30 -05:00
Alek Ratzloff
79d37a4e7b Add documentation to the Source and Dest value_len() and len() functions 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-26 10:26:18 -05:00
Alek Ratzloff
44dc34e52d Update spec for push and pop operations 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-26 10:25:46 -05:00
Alek Ratzloff
cd95011e7b Add function call test 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-26 10:19:26 -05:00
Alek Ratzloff
a4e1d43a74 Add factorial asm example 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-26 10:16:38 -05:00
Alek Ratzloff
7a6c2d80ab Add call/ret/push/pop instructions 
* Call/ret/push/pop are implemented and appear to be working
* Call/ret/push/pop is specified in the 0x2000 block, replacing the
  mov instruction
* Mov instruction is now specified in the 0x3000 block

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-26 10:14:48 -05:00
Alek Ratzloff
bd34cdad63 Add compile and compile_out options, and extended input/output options 
* compile flag and compile_out argument to the driver allow the program
  to be compiled only
* if '-' is supplied to compile_out, it will output to STDOUT instead
* if '-' is supplied to input, it will read from STDIN instead

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 18:12:28 -05:00
Alek Ratzloff
d11dbbcdf5 Add meta section len() and to_bytes() 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 17:56:16 -05:00
Alek Ratzloff
86d46b2a50 Add data section names and conversion to object file format 
* Data section names are encoded in the object file format
* Objects can be converted into their file format layouts
* Add writing/reading test to make sure that an object converted to
  bytes and then back from bytes is equal to hopefully catch major
  object translations

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 16:39:32 -05:00
Alek Ratzloff
700ea6c54f Add section name to data section spec 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 16:38:43 -05:00
Alek Ratzloff
461cf59bb0 Update intermediate object representation 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 15:08:49 -05:00
Alek Ratzloff
ef83cf7ef3 Add max_mem and size parsing for arg parsing 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 14:55:14 -05:00
Alek Ratzloff
b4637e2070 Comments in main.rs 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 14:21:39 -05:00
Alek Ratzloff
07abfc96b5 Add structopt for arg parsing 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 14:19:12 -05:00
Alek Ratzloff
bc4f59ecad Add bitwise tests, squash all arithmetic tests into test_arithmetic 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 14:10:21 -05:00
Alek Ratzloff
362590292a Add some integration tests and runner 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 13:48:03 -05:00
Alek Ratzloff
145739aee2 Add brackets to lexer in preparation for arrays 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 13:47:28 -05:00
Alek Ratzloff
0ff189bc1b Minor code cleanup and surpress warnings for unused inst and register constants 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 13:46:38 -05:00
Alek Ratzloff
b8a769c80f Add sized int value defs 
Integer value definitions now respect their sizes (.u8, .u16, etc)

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 13:45:41 -05:00
Alek Ratzloff
1c05b3bb44 Update main to return the given status instead of printing the status out when halted 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 13:45:04 -05:00
Alek Ratzloff
aff2da591b Add rerun_except crate to prevent building when .asm files are changed 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 13:44:15 -05:00
Alek Ratzloff
795a890502 Add IDiv instruction for signed integer division 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 13:44:03 -05:00
Alek Ratzloff
5619c9dc87 Add address deref, syntax, and deref sizes 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-25 12:07:24 -05:00
Alek Ratzloff
bdd08c6c5b Fix bug when generating single-source instructions 
Single-source instructions need their source spec to be in the the top 4
bits of the source/dest spec, and it was incorrectly being set in the
bottom 4 bits. This affected jump instructions, as they would
be reading the instruction at the given address rather than jumping
to it.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-19 14:11:57 -05:00
Alek Ratzloff
2413f9f362 Remove LALRPOP parser 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-18 17:55:11 -05:00
Alek Ratzloff
b0ef49bc2a Add assembler and execution logic 
Most everything works, but there's one small bug with the execution
involving jumps - still have to figure that one out.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-18 17:44:41 -05:00
Alek Ratzloff
0598bd1526 Rename vm::common -> vm::addr 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-17 16:22:15 -05:00
Alek Ratzloff
bf6b0dfba9 Remove vm::obj::assemble mod 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-17 16:17:55 -05:00
Alek Ratzloff
2c4b56e362 Use lrpar for parsing, big 'ol syntax overhaul 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-17 16:15:06 -05:00
Alek Ratzloff
cf9ba376aa Add value directives and strings 
.string, .zstring, .u64, .u32, .u16, .u8 are used before an ImmValue to
determine how the memory should be laid out for that value.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-11 17:49:17 -05:00
Alek Ratzloff
95d4eb0a60 Move test.asm -> examples directory 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-11 13:57:33 -05:00
Alek Ratzloff
6feeeea028 Add binary number parsing 
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
 2020-02-10 19:10:17 -05:00