riscv stuff

risc-v/Makefile

@@ -0,0 +1,4 @@
+default:
+	rm -rf hello
+	riscv64-linux-gnu-as hello.s -o hello.o
+	riscv64-linux-gnu-gcc -o hello hello.s -nostdlib -static

risc-v/hello.s

@@ -0,0 +1,16 @@
+.global _start
+
+_start:
+	# STDOUT FD = 1
+	addi a7, zero, 64
+	addi a0, zero, 1
+	la a1, helloworld
+	addi a2, zero, 13
+	ecall
+	
+	addi a7, zero, 93
+	addi a0, zero, 13
+	ecall	
+
+helloworld:
+	.ascii "Hello World\n"