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75e843f5f9
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Make branches macros and implement all of them
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2025-12-26 16:06:30 +01:00 |
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528b519ce9
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(BIG CHANGE) memory handling has changed, MMIO is now a 2 level page table, misaligned access supported, addresses not internally split to page and offset immediately, all load/store instructions implemented. Might still have bugs
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2025-12-26 14:20:27 +01:00 |
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6d9efb7eb8
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Small refactor in exception handling in core.rs
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2025-12-24 16:14:54 +01:00 |
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44394b3d19
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Update README to mention ELF support
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2025-12-24 14:11:29 +01:00 |
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66c63ab63c
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Add a default implementation for the memory device interface that just returns access faults
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2025-12-24 14:06:16 +01:00 |
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09d9064372
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EXCEPTION SYSTEM (initial version - may change later)
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2025-12-24 13:56:41 +01:00 |
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3f789442c0
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some linker script updates to work even more properly for newlib i think
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2025-12-24 11:42:55 +01:00 |
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96c2cbf7ae
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remove unused imports in main.rs
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2025-12-23 20:04:14 +01:00 |
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8ed4845d58
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ADD ELF SUPPORT
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2025-12-23 19:56:42 +01:00 |
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36faa1e39c
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Add license headers to files missing them
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2025-12-23 19:22:11 +01:00 |
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43bae12ea0
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Comment out the unused 'Pause' instruction result
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2025-12-23 18:46:38 +01:00 |
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0c6a540a85
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Implement SRLI
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2025-12-23 18:42:50 +01:00 |
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23392a55df
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Implement SH
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2025-12-23 18:31:04 +01:00 |
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f38114dbd7
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Remove some debug messages i forgot
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2025-12-23 11:01:28 +01:00 |
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c6da147d50
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Implement BLT
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2025-12-23 09:51:53 +01:00 |
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643a39c24a
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Fix s-type immediate decoding
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2025-12-23 09:51:32 +01:00 |
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1b409cd14e
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Improve error messaging
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2025-12-23 09:51:09 +01:00 |
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976bd688b0
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Remove an unused import in main.rs
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2025-12-23 08:57:43 +01:00 |
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0ac363e203
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Implement LW
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2025-12-22 22:48:57 +01:00 |
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7a22570a0f
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Improve the debug messages when invalid instructions are found (again)
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2025-12-22 22:46:45 +01:00 |
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2b5eb96187
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Implement BLTU
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2025-12-22 21:17:38 +01:00 |
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be1b1b9fe6
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Implement LH
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2025-12-22 21:15:24 +01:00 |
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5cbaf2dc66
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Implement BGEU
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2025-12-22 20:08:16 +01:00 |
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ae57cdc691
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Improve the debug messages when invalid instructions are found
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2025-12-22 19:57:33 +01:00 |
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bac68d7118
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Pull out memory access instructions from rvi.rs to their own file
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2025-12-22 19:51:21 +01:00 |
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8cce960b29
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Implement SW
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2025-12-22 19:44:37 +01:00 |
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cb100e92ac
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Implement SUB
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2025-12-22 19:33:40 +01:00 |
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d0d3775b88
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Implement OR
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2025-12-22 19:29:31 +01:00 |
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1ddda6614a
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Implement AND and improve formatting and ordering in rvi.rs
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2025-12-22 19:25:19 +01:00 |
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ff161a69e6
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Implement ADD
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2025-12-22 19:19:19 +01:00 |
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e00103375d
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Fix page offset miscalculation in instruction fetch
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2025-12-22 18:28:31 +01:00 |
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7177633477
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WHY WAS I USING S-TYPE IMMEDIATE IN LD (also add some more debugging info on an exception)
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2025-12-22 18:00:15 +01:00 |
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48477bd8b1
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Make echo.S compatible with the C-compatible linker script
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2025-12-21 22:51:29 +01:00 |
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24dcf5d5bd
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Improve UART by using nonblocking stdin
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2025-12-21 21:25:29 +01:00 |
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209e44ae64
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Implement LD and BNE
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2025-12-21 21:00:25 +01:00 |
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5b2d6a1af0
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Fix memory size in link.ld
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2025-12-21 20:04:06 +01:00 |
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a2d4dec417
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Add some stuff to help with using C in link.ld
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2025-12-21 19:38:32 +01:00 |
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6c39a5eef2
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Implement JALR, fix JAL, change how some stuff in instructions.rs is expressed
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2025-12-21 19:36:25 +01:00 |
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944ed573c6
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Switch the current binary to use anyhow errors and add a proper argument number check
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2025-12-21 19:06:23 +01:00 |
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2e1c0a7dce
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Implement AUIPC
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2025-12-21 19:01:02 +01:00 |
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5c132b55e9
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Fix assembly syntax in echo program
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2025-12-21 17:56:40 +01:00 |
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c10e1ec09b
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Allow other image file names through cli args, increase ram size, update readme
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2025-12-21 17:49:02 +01:00 |
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25dd685345
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Add a linker script and example uart echo program
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2025-12-21 17:04:18 +01:00 |
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c05ba60c3c
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Implement ANDI and BEQ
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2025-12-21 16:29:28 +01:00 |
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acc267a460
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Remove unused imports from the UART implementation
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2025-12-21 16:01:39 +01:00 |
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25c3b9f5e2
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Make a dedicated function for advancing the PC by one instruction
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2025-12-21 16:00:54 +01:00 |
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390a2b3228
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Implement LB and LBU
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2025-12-21 15:56:50 +01:00 |
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25ecfca912
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Make the UART not constantly flush output
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2025-12-21 15:45:32 +01:00 |
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0457530e0c
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Add a basic UART (very much temporary, its performance is most likely horrible
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2025-12-21 15:27:39 +01:00 |
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eec40b069a
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Implement SB
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2025-12-21 14:24:20 +01:00 |
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