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• 00f3b3bf21 Rearrange what is printed in vm_print_all Aryadev Chavali 2023-10-23 00:48:53 +01:00
• d0ee1f3b1f Check for and handle errors when interpreting bytecode Aryadev Chavali 2023-10-23 00:45:32 +01:00
• 919fae2df8 Added an example program fib.c Aryadev Chavali 2023-10-23 00:42:57 +01:00
• 19eb401498 Fixed bugs with ordering of bytes in some operations Aryadev Chavali 2023-10-23 00:28:39 +01:00
• ae9bc91713 Added and implemented OP_PRINT* Aryadev Chavali 2023-10-23 00:09:12 +01:00
• 45ad8f7296 Fixed bug where vm_print_program listing for program was incorrect Aryadev Chavali 2023-10-23 00:08:53 +01:00
• b44eaefabb Remove get_opcode_data_type Aryadev Chavali 2023-10-22 22:04:13 +01:00
• 7243ac2533 Coupled some routines together, implemented OP_PLUS_*, -vm_peek Aryadev Chavali 2023-10-22 22:01:14 +01:00
• 1962aabdf5 Added OP_PLUS_* Aryadev Chavali 2023-10-22 22:00:44 +01:00
• 789016a343 Fix bug where negative opcodes lead to invalid bytecode parsing Aryadev Chavali 2023-10-22 21:39:32 +01:00
• cc84703725 Added runtime errors to virtual machine Aryadev Chavali 2023-10-22 21:31:52 +01:00
• 7f1994c7aa Added and implemented OP_JUMP_(STACK|REGISTER) Aryadev Chavali 2023-10-22 20:57:29 +01:00
• d8e45fce04 Removed ret register Aryadev Chavali 2023-10-22 20:54:29 +01:00
• fffad9aea3 Added and implemented OP_JUMP_ABS Aryadev Chavali 2023-10-22 20:40:42 +01:00
• bc0e0fce25 Fixed bug in vm_execute_all, if no OP_HALT then program kept going Aryadev Chavali 2023-10-22 20:30:17 +01:00
• 9da31398ba Implemented vm_* routines for OP_DUP and vm_execute code Aryadev Chavali 2023-10-22 20:30:05 +01:00
• 073a23152e Use conversion functions for (h)word to and from bytes instead of bit shifting Aryadev Chavali 2023-10-22 20:29:02 +01:00
• aa3d1cb85f Added NUMBER_OF_OPCODES which aids in compilation errors Aryadev Chavali 2023-10-22 20:27:09 +01:00
• b20ad511a0 Added opcode OP_DUP_* Aryadev Chavali 2023-10-22 20:26:17 +01:00
• 137a6d3b75 Cleaned up inst.c Aryadev Chavali 2023-10-22 20:25:17 +01:00
• d5d37f1264 Functions which convert (h)words to and from bytes Aryadev Chavali 2023-10-22 20:23:23 +01:00
• d5d10480fa Simple program which assembles instructions then executes them Aryadev Chavali 2023-10-22 19:33:27 +01:00
• 33364fddab Fix bug where accessing byte/hword registers > 8 wouldn't work Aryadev Chavali 2023-10-22 19:28:45 +01:00
• ed63025927 Added flag to Makefile to set VERBOSE macro in base.h Aryadev Chavali 2023-10-22 18:26:33 +01:00
• cf23a62008 Made a debug and release configuration via flags Aryadev Chavali 2023-10-22 18:06:41 +01:00
• 36bcd90c81 When VEROBSE flag is set greater than 0, print traces in vm_execute_all Aryadev Chavali 2023-10-22 18:04:13 +01:00
• 936971c1a3 Changed formats for vm_print_(stack|program) Aryadev Chavali 2023-10-22 18:04:00 +01:00
• 5eb7b6f431 Fix bug where FILE is closed when passing to darr_(write|read) Aryadev Chavali 2023-10-22 18:03:05 +01:00
• 5ee9bfaca8 Added flag in base.h, VERBOSE Aryadev Chavali 2023-10-22 18:02:40 +01:00
• a8d743e76e Added macros for NOOP and HALT Aryadev Chavali 2023-10-22 18:02:30 +01:00
• e6339b1036 Changed format of inst_print Aryadev Chavali 2023-10-22 18:02:05 +01:00
• 47c7d6baf7 Store the result of OP_POP in the last register as a word Aryadev Chavali 2023-10-22 17:01:15 +01:00
• 95723f36d2 Implemented vm routines for OP_EQ_* Aryadev Chavali 2023-10-21 23:55:51 +01:00
• 50ce1b35cd Implemented vm routines for OP_XOR_* Aryadev Chavali 2023-10-21 23:55:41 +01:00
• c9b23b7b24 Implemented vm routines for OP_AND_* Aryadev Chavali 2023-10-21 23:55:29 +01:00
• 6161a352e0 Implemented vm routines for OP_OR_* Aryadev Chavali 2023-10-21 23:55:16 +01:00
• ae7f0efc85 Implemented vm routines for OP_NOT_* Aryadev Chavali 2023-10-21 23:54:59 +01:00
• ba57523f3e Implemented opcode_as_cstr for NOT,OR,AND,XOR,EQ Aryadev Chavali 2023-10-21 23:54:35 +01:00
• 696589b7b6 Introduced opcodes for NOT, OR, AND, XOR and EQ Aryadev Chavali 2023-10-21 23:42:07 +01:00
• f9b2c8ed77 Cleaned up and used macro magic to shorten the INST_* macros Aryadev Chavali 2023-10-21 23:40:03 +01:00
• d2cdb211b2 Added vm_execute_all which executes an entire program Aryadev Chavali 2023-10-21 23:31:48 +01:00
• 1c2de9a926 Wrote a quick tutorial on targeting the virtual machine Aryadev Chavali 2023-10-21 23:27:33 +01:00
• f3a5981fa2 Wrote generalised procedures for interpret and assembly Aryadev Chavali 2023-10-21 23:24:41 +01:00
• 44a9a3ca46 Helper functions for read/write instructions from darr or FILE* Aryadev Chavali 2023-10-21 23:23:37 +01:00
• 903ae3ab04 Helper darr functions to read/write bytes from FILE * Aryadev Chavali 2023-10-21 23:23:13 +01:00
• dcedb70a5c Switched from floats to halfword Aryadev Chavali 2023-10-21 22:57:43 +01:00
• 266b4e4572 Implemented vm_print_* routines Aryadev Chavali 2023-10-16 12:45:50 +01:00
• 44f8c81efe Added opcode_as_cstr, opcode_type_as_cstr and inst_print Aryadev Chavali 2023-10-16 12:45:04 +01:00
• d01b39d1bb Added helper functions to read and write bytes from files Aryadev Chavali 2023-10-16 12:03:42 +01:00
• e7616cdeb6 Made a sample program, loaded into VM and executed Aryadev Chavali 2023-10-16 11:32:20 +01:00
• 7380dd375a Fixed bug with get_opcode_data_type Aryadev Chavali 2023-10-16 11:25:52 +01:00
• 845d864bc0 Set opcode after reading parameters in inst_read_byte Aryadev Chavali 2023-10-16 11:04:43 +01:00
• 4d9b8a04f2 Fixed error with OP_PUSH where bits weren't in the pattern of data_type_t Aryadev Chavali 2023-10-16 01:19:08 +01:00
• a4c9b85c79 MOV and PUSH_*_REGISTER should only need bytes for their operand Aryadev Chavali 2023-10-16 01:18:34 +01:00
• 6038363d2f Added functionality to read and write instruction bytecode Aryadev Chavali 2023-10-16 01:06:49 +01:00
• a24a096e2a Made OP_HALT the only instruction to have the top byte filled Aryadev Chavali 2023-10-16 01:06:02 +01:00
• 0f37a59940 MOV now uses the stack, removed register member in inst_t Aryadev Chavali 2023-10-16 00:59:30 +01:00
• cd19f1e1d3 Better checking of opcode types Aryadev Chavali 2023-10-15 22:16:31 +01:00
• 1cb54dc994 Remove parameter for INST_*POP Aryadev Chavali 2023-10-15 22:06:30 +01:00
• 15ce778771 Set register parameter for inst_t to be a byte Aryadev Chavali 2023-10-15 22:05:59 +01:00
• c24c1d1607 Implemented a dynamically sized byte array Aryadev Chavali 2023-10-15 21:49:30 +01:00
• 98760ee63b Added macros for getting the maximum and minimum of two numbers Aryadev Chavali 2023-10-15 21:49:13 +01:00
• 639808a092 Moved vm_* code to its own file (runtime.(h|c)) Aryadev Chavali 2023-10-15 21:41:16 +01:00
• 14e9192996 Implemented OP_PUSH_*_REGISTER in vm_execute Aryadev Chavali 2023-10-15 21:29:26 +01:00
• f73604ba6e Make error TODOs specific to routine (for vm_mov_*) Aryadev Chavali 2023-10-15 21:27:45 +01:00
• f513e90f00 Implemented vm_push_*_register routines Aryadev Chavali 2023-10-15 21:27:26 +01:00
• 744cc7acf7 Renamed opcodes PUSH_*REG to PUSH_*_REGISTER Aryadev Chavali 2023-10-15 21:27:00 +01:00
• 4ae762294d Rearranged opcodes (switched mov with push_reg) Aryadev Chavali 2023-10-15 21:21:27 +01:00
• 54760d446c Added instructions to push register values onto the stack Aryadev Chavali 2023-10-15 21:19:49 +01:00
• f0e48a186d Added a register ret, a word, which holds the result of any instruction Aryadev Chavali 2023-10-15 21:14:56 +01:00
• 2490966554 Implemented vm_execute for pop routines Aryadev Chavali 2023-10-15 21:13:15 +01:00
• 6927557d3f Made vm_pop_* routines more uniform by returning a data_t Aryadev Chavali 2023-10-15 21:12:53 +01:00
• 00517fddd6 Added instructions for popping differing types Aryadev Chavali 2023-10-15 21:09:00 +01:00
• 2bc20f07d3 Added vm_execute support for mov routines Aryadev Chavali 2023-10-15 21:05:56 +01:00
• 3f8544485a Move push routines outside of vm_execute Aryadev Chavali 2023-10-15 21:04:44 +01:00
• 56c545e7c9 Added opcodes for MOV and ability for instructions to hold registers Aryadev Chavali 2023-10-15 21:02:40 +01:00
• 33aa62634a Added registers to virtual machine Aryadev Chavali 2023-10-15 21:00:01 +01:00
• 7a820290f9 Make push opcodes a specific bit set and add a NOOP opcode Aryadev Chavali 2023-10-15 20:56:02 +01:00
• 40dfa5c255 Split off instruction structure to its own file Aryadev Chavali 2023-10-15 17:38:35 +01:00
• ea14b3beb6 Added an instruction setup Aryadev Chavali 2023-10-15 05:52:58 +01:00
• 3786b7d785 stack.size -> stack.max Aryadev Chavali 2023-10-15 05:43:57 +01:00
• 4ddc3cce71 Main now loads a stack allocated byte array for VM stack Aryadev Chavali 2023-10-15 05:41:20 +01:00
• bee6d445bb Added a routine to load a pointer as stack memory Aryadev Chavali 2023-10-15 05:40:53 +01:00
• 2de37b20e2 Changed stack data to be a pointer Aryadev Chavali 2023-10-15 05:39:19 +01:00
• a8747faa08 Split off general types and structures into separate header Aryadev Chavali 2023-10-15 05:36:01 +01:00
• da1c4aad35 Changed stack.pointer->stack.ptr Aryadev Chavali 2023-10-15 05:33:42 +01:00
• 268fdf0ca0 Added floats (64 bit floating point) push and pop routines Aryadev Chavali 2023-10-15 05:23:38 +01:00
• 724f5e0258 Force big endian when pushing words Aryadev Chavali 2023-10-15 05:17:33 +01:00
• 54b836ba64 Add macro for size of a word Aryadev Chavali 2023-10-15 05:03:09 +01:00
• cfc9edebba Added macro constructors for union types Aryadev Chavali 2023-10-15 04:57:38 +01:00
• 1180833161 Implemented functions to pop a byte and a word Aryadev Chavali 2023-10-15 04:40:14 +01:00
• d52d7ad413 Implemented a union type to make vm_push_* routines uniform Aryadev Chavali 2023-10-15 04:36:47 +01:00
• 49a85a20d8 Added functions to push a byte and a word Aryadev Chavali 2023-10-15 04:35:07 +01:00
• 1101716f0f Defined a simple virtual machine data structure Aryadev Chavali 2023-10-15 01:35:05 +01:00
• ca2e9c7083 Added some type aliases Aryadev Chavali 2023-10-15 01:34:42 +01:00
• 7cf9160e3f Added a README Aryadev Chavali 2023-10-15 01:30:00 +01:00
• b6672121a1 Remove unit tests from github workflow Aryadev Chavali 2023-10-15 01:27:46 +01:00
• 16e2275576 First commit! Aryadev Chavali 2023-10-15 01:25:24 +01:00