cleaned up repo and updated .gitignore

Author: varunmadhavam

.gitignore

@@ -127,3 +127,65 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+#c
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+*.s
+*.S
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+*.bin
+*.elf
+*.map
+*.srec
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+#vscode
+.vscode/

.vscode/settings.json

@@ -22,4 +22,7 @@ an riscv rv32i simulator in python inspired from https://github.com/johnwinans/r
     3. make
 
 6. Help
-    1. Within the simulator enter h|help to get the help menu.
+    1. Within the simulator enter h|help to get the help menu.
+
+7. References
+    1. 

README.md

@@ -1,4 +1,6 @@
-TOOLCHAIN_PREFIX=riscv-none-embed-
+
+RISCV_GNU_TOOLCHAIN_INSTALL_PREFIX = /opt/tools/compilers/riscV/rv32i
+TOOLCHAIN_PREFIX=$(RISCV_GNU_TOOLCHAIN_INSTALL_PREFIX)/bin/riscv32-unknown-elf-
 
 FIRMWARE_OBJS=start.o
 
@@ -18,6 +20,6 @@ start.o: start.S
 	$(TOOLCHAIN_PREFIX)gcc -c -mabi=ilp32 -march=rv32i -ffreestanding -nostdlib -nostartfiles -o $@ $<
 
 disass: firmware.elf
-	riscv-none-embed-objdump -d -M no-aliases -M numeric firmware.elf
+	$(TOOLCHAIN_PREFIX)objdump -d -M no-aliases -M numeric firmware.elf
 clean:
 	rm -f firmware.bin firmware.elf start.o firmware.map

bus.py

@@ -1,6 +1,7 @@
 
+RISCV_GNU_TOOLCHAIN_INSTALL_PREFIX = /opt/tools/compilers/riscV/rv32i
 FIRMWARE_OBJS = src/main.o src/ttyuart.o
-TOOLCHAIN_PREFIX = riscv-none-embed-
+TOOLCHAIN_PREFIX = $(RISCV_GNU_TOOLCHAIN_INSTALL_PREFIX)/bin/riscv32-unknown-elf-
 
 all: firmware/firmware.bin firmware/firmware.srec
 
@@ -18,6 +19,9 @@ firmware/firmware.elf: $(FIRMWARE_OBJS) riscv.lds
 src/%.o: src/%.c
 	$(TOOLCHAIN_PREFIX)gcc -c -I./include -mabi=ilp32 -march=rv32i -Os --std=c99 -o $@ $<
 
+disass: firmware/firmware.elf
+	$(TOOLCHAIN_PREFIX)objdump -d -M no-aliases -M numeric firmware/firmware.elf
+
 clean:
 	rm -vrf $(FIRMWARE_OBJS) firmware/* src/*.o