RISC-V Emulator

Running on tests

To be sure, always compile again before running

g++ *.h *.cpp

and then run

./a.out

To add more tests, just place them in Tests/default_commands. The program will first run the emulator and then compare the result with the one venus.jar returned

C standard library tests are not present, but their examples are shown in Tests/standard_library directory

C standard library command descriptions

Name	Syntax	Description
printf	printf offset(rs)	writes out the characters from memory of given address until character is 0
memcmp	memcmp rs1, offset(rs), offset(rs), rs2	reads rs2 amount of characters from first and second addresses and writes answer in rs1. if first > second, answer is 1, if first < second, -1, otherwise 0
memcpy	memcpy offset(rs), offset(rs), rs1	copies rs1 amount of bytes from second address(src) to first address(dest). messes up if memory blocks overlap
memmove	memmove offset(rs), offset(rs), rs1	moves rs1 amount of bytes from second address(src) to first address(dest). doesn't mess up if memory blocks overlap
memset	memset offset(rs) rs1 rs2	sets rs2 amount of bytes at memory address to equal rs1 (least significant byte information)
strlen	strlen rs1 offset(rs)	reads characters from memory address until character is 0. returns the result in rs1
malloc	malloc rs1 rs2	allocates rs2 amount of bytes of memory and returns address to rs1
realloc	realloc rs1 rs2 rs3	reallocates rs3 amount of bytes to memory block at rs2 and returns the new address to rs1
free	free rs1	frees allocated data at rs1