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90fb9816b495167c66f40284b66a9d4da22ae769
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22 Commits

Author SHA1 Message Date
Aryadev Chavali
90fb9816b4 Added new macro for bitwise comparison construction 
This pushes a datum of the same type as the operands, which is why it
cannot use the comparator macro as that always pushes bytes.
 2023-10-31 22:30:58 +00:00
Aryadev Chavali
5045452d7a Added flag which forces the printing of hexes 
Anything other than char (which can just use print.byte to print the
hex) and byte (which prints hexes anyway), all other types may be
forced to print a hex rather than a number if PRINT_HEX is 1.
 2023-10-31 22:30:53 +00:00
Aryadev Chavali
d9aaaf2a53 Use macros to stop duplication of code 
I've made a single macro which defines a function through some common
metric, removing code duplication.  Not particularly readable per se,
but using a macro expansion in your IDE allows one to inspect the code.
 2023-10-31 21:42:29 +00:00
Aryadev Chavali
5127202722 Introduced 3 new union members to data_t 
These new members are just signed versions of the previous members.
This makes type punning and usage for signed versions easier than
before (no need for memcpy).
 2023-10-31 21:41:53 +00:00
Aryadev Chavali
5202dfbb26 Remove duplicated code 2023-10-31 21:28:19 +00:00
Aryadev Chavali
f7f566b106 Implemented all the comparators 
So much reused code, I definitely need to find a way to make this cleaner.
 2023-10-31 21:24:54 +00:00
Aryadev Chavali
7817b5acc9 Use standardised signed version of word type from base.h 2023-10-31 21:24:50 +00:00
Aryadev Chavali
5d800d4366 Moved inst module to lib 
As it has no dependencies on vm specifically, and it's more necessary
for any vendors who wish to target the virtual machine, it makes more
sense for inst to be a lib module rather than a vm module.
 2023-10-31 21:14:14 +00:00
Aryadev Chavali
14a3820e74 Implemented new types of EQ, forced all comparators to push bytes 
Just need to call their unsigned versions.

All comparators should push bytes as it makes return types uniform.
 2023-10-31 21:05:25 +00:00
Aryadev Chavali
036d3dcfba vm_execute_all: Print every cycle on VERBOSE >= 2, just print final state otherwise 
Changed VERBOSE checks to ensure a degree of information.
 2023-10-31 21:00:13 +00:00
Aryadev Chavali
4d8b855d87 Created routines for new comparator opcodes (not implemented) 
Will cause error if used currently, which is fine.
 2023-10-31 20:59:01 +00:00
Aryadev Chavali
0975d92493 Introduced new instructions for comparison 
Comparing signed and unsigned versions of numbers.  Same for EQ as
well.

Notice the irregular pattern of BYTE, CHAR, INT, HWORD,LONG,WORD as
OPCODE_IS_TYPE requires the subcodes to be surrounded by BYTE and
WORD.
 2023-10-31 20:50:28 +00:00
Aryadev Chavali
157c79d53c Added a "usage" message and colours for assembler 
Prints useful and pretty messages when verbose being at least 1.
 2023-10-29 16:59:31 +00:00
Aryadev Chavali
597a45aa73 Fixed bug where JUMP_REGISTER couldn't be in bytecode read 2023-10-29 16:58:18 +00:00
Aryadev Chavali
c4cb45f3ad Fixed bug where reading operand bytecode may stop prematurely 
This is due to checking for equality instead of just greater than in
darr->used against darr->available.
 2023-10-29 16:56:33 +00:00
Aryadev Chavali
e9c54e045a Fixed bug where printing hword of an instruction prints number not hex 
This is an easy fix.
 2023-10-26 11:16:02 +01:00
Aryadev Chavali
74a85268c4 Moved base functions from inst.c to dedicated file 
Doesn't make sense for them to be in the VM module when they have a
more general purpose now.
 2023-10-26 10:19:10 +01:00
Aryadev Chavali
c8c5381cf2 vm/main takes a filename as input to execute bytecode 
Also prints a usage for incorrect usage.
 2023-10-26 10:18:53 +01:00
Aryadev Chavali
42ac28d44a Make root directory an include path, set #include's properly 
Easier to write includes now just using < with the module name, in
comparison to using relative paths.
 2023-10-23 04:46:09 +01:00
Aryadev Chavali
ac57e32a02 Added lib folder for general stuff, introduced as target to Makefile 2023-10-23 04:25:48 +01:00
Aryadev Chavali
aa4a3b8614 Implemented simple example of a for loop in main 2023-10-23 03:59:34 +01:00
Aryadev Chavali
b44a61be41 src->vm, Makefile is now a bit more abstracted and pretty colours 
Changed folder names for sake of clarity (will be introducing a new
build target soon), and Makefile can now easily support more targets.
 2023-10-23 03:58:34 +01:00