Crate lib_rv32 Copy item path Source decode Decoding macros. mcu Reference implementation of an MCU. traits Traits to be implementation by other implementations of
an MCU. b_imm Decode the B-type immediate from a u32 formatted instruction. bit_concat Concatenate the bits of integers. bit_extend Extend a bit (useful for sign extension). bit_slice Macro to help with bit level access to integers. Example
attempts to mimic Verilog syntax. func3 Decode the FUNC3 field from a u32 formatted instruction. func7 Decode the FUNC7 field from a u32 formatted instruction. i_imm Decode the I-type immediate from a u32 formatted instruction. j_imm Decode the J-type immediate from a u32 formatted instruction. opcode Decode the opcode field from a u32 formatted instruction. rd Decode the destination register field from a u32 formatted instruction. rs1 Decode the first operand register field from a u32 formatted instruction. rs2 Decode the second operand register field from a u32 formatted instruction. s_imm Decode the S-type immediate from a u32 formatted instruction. sized_bit_extend Like bit_extend, but outputs the result and its
size in a tuple. sized_bit_slice Like bit_slice, but outputs the result and its
size in a tuple. u_imm Decode the U-type immediate from a u32 formatted instruction. Assertions Used to contain a set of assertions about the state of an MCU. RiscvError Enum that encapsulates the various different ways execution can fail.
Some errors are caused by other errors and reference them. REG_NAMES Array to match register numbers to their common names. exec_one Decode and execute instruction. This will use the program counter to
fetch an instruction from memory, decode/evaluate it, and commit the
results to pc, mem, and rf.