Michael Munday
e19544ae9a
Implement unary minus.
2016-12-21 14:03:58 -05:00
Michael Munday
9da6ff7ea3
Implement more equality checks.
2016-12-21 13:21:12 -05:00
Michael Munday
8518df8e56
Implement some boolean operations.
2016-12-21 12:49:53 -05:00
Michael Munday
ae38a6913e
Add support for numeric equality checks.
2016-12-21 11:02:53 -05:00
ketank-new
4853da820a
Added test example for RXE mode
2016-12-21 18:43:25 +05:30
Michael Munday
b5aa0d077c
Fix bug in division.
2016-12-20 17:26:33 -05:00
Michael Munday
eda56c9a44
Add support for if statements.
2016-12-20 17:10:38 -05:00
Michael Munday
90334d3be9
Add support for function definitions.
2016-12-20 15:49:21 -05:00
Michael Munday
e0e98f94d3
Add support for modulo (%) operations.
...
Only the slow path for now.
2016-12-20 14:54:26 -05:00
Michael Munday
419869b20e
Fixes for DynASM.
...
* s/hle/nle/
* Fix RRF-b encoding (didbr instruction)
2016-12-20 14:53:31 -05:00
Michael Munday
d006b07127
Add support for division.
2016-12-20 13:37:42 -05:00
Michael Munday
d94f4ac079
Add support for multiplication.
...
Multiplication instructions don't set the overflow flag so we need
to manually check, which is why this is more complicated than
addition.
2016-12-20 13:14:53 -05:00
Michael Munday
d256d99659
Add support for floating point add/sub.
2016-12-20 12:09:32 -05:00
Michael Munday
5df5e1f144
Add support for integer add/subtract.
...
Still need to support floating point operations. Multiplication is a
little more complicated because it doesn't set the overflow flag.
2016-12-20 09:41:19 -05:00
Michael Munday
5076a3ee2e
Fix some DynASM instructions.
2016-12-20 09:27:40 -05:00
niravthakkar
28b6fe8759
Updated encoding for instructions
...
Have replaced the characters used for encoding with their respective addressing modes
2016-12-20 17:50:29 +05:30
Michael Munday
e467d784a9
Fix floating point fallback code for for loops.
...
Adds a dependency on clfi. Not sure how to work around (don't
really want to always introduce a temporary).
2016-12-19 16:03:21 -05:00
Michael Munday
299dc34db2
Add basic integer for loop support.
...
> for i=1,3 do print(i) end
1
2
3
2016-12-19 14:21:48 -05:00
Michael Munday
0d442ec688
Add some more instructions to DynASM.
2016-12-19 14:21:24 -05:00
Michael Munday
3330f6adc2
Fix KSHORT destination slot address.
2016-12-19 10:49:21 -05:00
Michael Munday
6a9855d988
Add support for print function call.
...
Hello world now works.
> print("hello world!")
hello world!
2016-12-17 19:56:56 -05:00
Michael Munday
bee112d431
Add support for global short assignments.
...
In other words 'a = 1' now works.
2016-12-16 17:23:46 -05:00
Michael Munday
24bdb7576d
Add debug options to Makefile.
...
We're going to need these for a while, so better to put in the
repository. Once we're happy things are working we can disable
the debug info and enable optimizations again.
2016-12-15 11:03:13 -05:00
Michael Munday
2dcbf5be3e
Implement more functions in the VM.
...
Also adds segmentation faults to stubbed out functions to make it
easier to work out what the control flow is.
2016-12-15 11:01:59 -05:00
ketank-new
b7c4e4b3d6
Added rre instruction format example
...
example includes instruction fidr
2016-12-15 13:51:46 +05:30
Michael Munday
ee4b942c94
Add vm_call handling code.
...
Now prints the prompt (!).
2016-12-14 22:22:49 -05:00
Michael Munday
f79a6f3f0b
Add support for clm instruction.
2016-12-14 21:16:30 -05:00
Michael Munday
24f2ab48f5
Various fixes for vm_s390x.dasc.
2016-12-14 18:43:21 -05:00
Michael Munday
00d00e995f
Fix extern handling in host vm builder.
2016-12-14 16:31:52 -05:00
Michael Munday
ef3ff100f2
Fix decoding of REL_EXT.
...
REL_EXT has an argument which wasn't being properly jumped,
resulting in an early STOP (because the argument is 0).
2016-12-14 16:27:38 -05:00
niravthakkar
49182c4d2e
Added test for RRD and RRF-e
...
Also have modified the function which can handle 3 arguments now
2016-12-14 19:14:10 +05:30
niravthakkar
d63ff89c54
Added support for RRD addressing mode
...
We may not require RRD mode but, Added to check working of RRF-e.
2016-12-14 19:07:05 +05:30
niravthakkar
df7c3245e0
Minor Fix, correct the parameter used
...
Instead of params[2] , params[1] was used, corrected it.
2016-12-14 17:45:32 +05:30
niravthakkar
52368ac005
Minor cleanup
2016-12-14 14:47:15 +05:30
niravthakkar
ccd2614902
Added support for RIE-e, RSI, RXF, SI instructions
2016-12-14 14:18:07 +05:30
niravthakkar
f01f459573
Added support for RIL-c and RX-b instructions
2016-12-14 13:51:58 +05:30
niravthakkar
a8244c02ec
Added support for RI-b and RI-c mode instructions
2016-12-14 13:41:55 +05:30
niravthakkar
4641b9a42d
Added C support for I mode instructions
2016-12-14 13:30:49 +05:30
niravthakkar
cdb31062b7
Added the action part for I mode
2016-12-14 13:24:44 +05:30
niravthakkar
52ab0596da
Added support for I mode instructions
2016-12-14 13:16:44 +05:30
niravthakkar
bc490013a3
Adding S mode instructions support
2016-12-14 13:08:32 +05:30
niravthakkar
45669fecef
Added RRF-b mode support
2016-12-14 12:34:11 +05:30
niravthakkar
2f96ca3d91
Adding support for RXE mode instructions
2016-12-14 12:29:46 +05:30
niravthakkar
fc5874c951
Added RRF-e support
2016-12-14 12:22:08 +05:30
Michael Munday
7644f40b1a
Add more interpreter code.
...
Compilation is currently broken, a label is missing.
2016-12-13 18:31:43 -05:00
Michael Munday
c83f4af9cc
Add more RI-a (register-immediate) instructions.
2016-12-13 17:01:44 -05:00
Michael Munday
3ef1f21531
Add support for SIL instructions in DynASM.
2016-12-13 11:26:53 -05:00
Michael Munday
0b120ac64b
Add partial implementation of vm_cpcall.
...
Currently works if the call returns 0. Haven't yet written the code
needed to handle the non-zero case.
2016-12-12 17:17:34 -05:00
Michael Munday
361a298371
Add lhi instruction and fix immediate parsing.
...
We were reading immediate values as hexadecimal values, really we
want the default to be decimal unless the immediate has a '0x' prefix.
2016-12-12 14:38:55 -05:00
niravthakkar
1c7a727f4a
Correct the range of parameter, and merge the two case
2016-12-12 11:21:42 +05:30
