Remove old test code

There is some code that I had there after messing with some of the
topics on Uros' blog (https://popovicu.com/), but that became irrelevant
after working on some other projects (e.g. fbos) or on other examples.

This commit also brings about a major overhaul on the structure of the
project. Hopefully it's now at a more ready state.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 0 insertions, 28 deletions

diff --git a/arch/riscv/usr/factorial.S b/arch/riscv/usr/factorial.S
deleted file mode 100644
index 7e3df12..0000000
--- a/arch/riscv/usr/factorial.S
+++ /dev/null
@@ -1,28 +0,0 @@
-.text
-.globl factorial
-.type factorial, @function
-
-factorial:
-	// If input <= 1, just return the given thing.
-	addi t0, zero, 1
-	bgt a0, t0, else
-	jr ra
-else:
-	// Preserve the argument and the return address before the call.
-	addi sp, sp, -16
-	sd a0, 0(sp)
-	sd ra, 8(sp)
-
-	// Call the same function but with a value of argument-1.
-	addi a0, a0, -1
-	call factorial
-
-	// Restore back the original argument and the return address. Then multiply
-	// the original argument with the returned one from the previous call.
-	ld t1, 0(sp)
-	ld ra, 8(sp)
-	addi sp, sp, 16
-	mul a0, t1, a0
-
-	// And return to the caller.
-	jr ra