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70 Commits

Author SHA1 Message Date
niravthakkar
206c650689 Updated the memory parsing 
The order matters here, so just moved displacement check to end
 2017-01-05 14:48:09 +05:30
niravthakkar
7aae451d93 Reverting the changes, as its breaking the build 
The above expression works on CLI, but its failing here, not sure whats going wrong , Please let me know your comments on it
 2017-01-04 18:15:57 +05:30
niravthakkar
1fe2176241 Updated memory parsing 
The values of base and index registers have been passed as 0, if only displacement is passed
the displacement is assumed to be alphanumeric (since label might be used)
 2017-01-04 17:43:53 +05:30
niravthakkar
6bbfa48b93 Updated the memory parsing 
It accepts 2 registers, without the displacement
 2017-01-04 16:20:56 +05:30
niravthakkar
b84dd8e65d Added couple of instructions required by test-case 
maeb(RXF) and cegbra(RRF-e)  have been added
 2017-01-03 16:16:29 +05:30
niravthakkar
dd6ecfa73d Added SIY addressing mode support 
Added SIY add mode, and Updated the number of parameters for few of the instructions of RS-a mode
 2017-01-03 15:51:23 +05:30
Michael Munday
12602d2a1f Fix for DynASM buffer overflow. 
Need to include all actions with arguments against MAXSECPOS.
 2016-12-29 16:50:58 -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
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
0d442ec688 Add some more instructions to DynASM. 2016-12-19 14:21:24 -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
f79a6f3f0b Add support for clm instruction. 2016-12-14 21:16:30 -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
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
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
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
9b9e1ea667 Added SS-b mode 
Currently I am not able to test the functionality of this mode, need some help in that.
Also for the time being I have created different function for parsing, we can merge that later, just to make sure SS-a doesnt break, I have not merged this since I was not able to test it.
Let me know your comments on this
 2016-12-09 19:18:02 +05:30
Michael Munday
1a06b651e2 Fix a couple of templates that were too short. 2016-12-08 16:00:59 -05:00
Michael Munday
d472a3cc1c Add support for .type directives. 2016-12-08 15:29:26 -05:00
Michael Munday
b98c92e142 Delete unused branch_type function. 2016-12-08 13:59:05 -05:00
Michael Munday
106718249e Add support for SS-a instructions. 
I've also changed the template parser so that it can handle suffixes
which are longer than 1 character. The suffix for SS-a instructions
is "SS-a". We could change this again later.
 2016-12-07 16:56:00 -05:00
niravthakkar
127f0fd745 Adding RRD support 
Currently only "maer" is  implemented. I am not able to get this working, don't know if I am missing out something, or we need to add some more functionality for RRD.
 2016-12-07 20:21:06 +05:30
Michael Munday
cdfb632a4f Add ADD HALFWORD IMMEDIATE (64-bit) instruction (aghi). 2016-12-06 15:39:04 -05:00
Michael Munday
c688a0a3ab Add support for brasl instruction. 
Important for calling subroutines.
 2016-12-06 14:38:11 -05:00
Michael Munday
3ae1c4fd6b Support floating point register arguments. 
It would be nice to verify that floating-point/general-purpose
registers are indeed expected by the instruction, but for now treat
them both the same so we can use floating-point instructions.
 2016-12-06 13:15:29 -05:00
Michael Munday
e3ab67aed4 Support forward local branches. 2016-12-06 11:57:48 -05:00
niravthakkar
1362e9aee2 Minor Cleanup 2016-12-06 19:34:47 +05:30
niravthakkar
ba4343d9d1 Added support for Immediate mode 16 bit 
Currently only afi instruction is encoded, will be adding other instructions too. For encoding we are running out of characters so was planning to append the complete modes (RXa or rxa) which one do you think is better, and also thinking of just adding remaining instruction modes as well, which we don't support as of now. Let me know if you want me to add those, or we will wait for sometime before we add those.
 2016-12-06 19:17:54 +05:30
niravthakkar
2156278508 Updated the addressing mode working 
The case where immediate was passed as label was not covered initially, so updated it
 2016-12-06 12:23:51 +05:30
Michael Munday
73ad6dc77d Add support for jumps to local labels. 
Currently limited to 16-bits ONLY.

Allows code like:

|1:
| ...
| j <1
 2016-12-05 17:27:24 -05:00
Michael Munday
410bdb8182 Minor cleanup of dasm_s390x.lua. 2016-12-05 15:00:40 -05:00
Michael Munday
d9e61fe7a8 Shorten templates by four characters. 
We only have 6-byte instructions, so we don't really need the ability
to encode 8-bytes.
 2016-12-05 14:23:35 -05:00
Michael Munday
d7f7509894 Minor indentation fixes. 2016-12-05 12:35:13 -05:00
niravthakkar
b97a7f7b44 Minor cleanup and modified 32 bit signed check 
Modified 32 bit signed check  for the immediate value
 2016-12-02 17:19:29 +05:30
niravthakkar
45553891da Minor change , missed out brace 2016-12-02 14:13:55 +05:30
niravthakkar
4c7e494e0a Added support for Immediate addressing mode 
Adding support for Immediate add mode, need to check how 32 bits is returned, currently followed the displacement method.
 2016-12-02 12:55:43 +05:30