Test more instructions

src/main.rs

@@ -1,8 +1,10 @@
 #![no_std]
 #![no_main]
 
-use core::{panic::PanicInfo, ptr::write_volatile};
-use riscv::asm::nop;
+use core::{
+    panic::PanicInfo,
+    ptr::{read_volatile, write_volatile},
+};
 use riscv_rt::entry;
 
 #[panic_handler]
@@ -10,15 +12,30 @@ fn panic_handler(_info: &PanicInfo) -> ! {
     loop {}
 }
 
+static INIT_VALUE: u32 = 0b11011011;
+static INIT_VALUE_2: i32 = -0x50000000;
+#[used]
+static TEXT: &str = "lmao YEET";
+
 #[entry]
 fn main() -> ! {
-    const MEM_ADDR: *mut u32 = 0x1000_0004 as *mut u32;
+    const MEM_ADDR: *mut u32 = 0x8000_0004 as *mut u32;
+    const MEM_ADDR_2: *mut i32 = 0x8000_0008 as *mut i32;
     loop {
-        for i in 0..100 {
-            unsafe {
-                write_volatile(MEM_ADDR, 0b01101100+i);
+        unsafe {
+            write_volatile(MEM_ADDR, INIT_VALUE);
+            for _ in 0..32 {
+                let mut value = read_volatile(MEM_ADDR);
+                value <<= 1;
+                write_volatile(MEM_ADDR, value);
+            }
+
+            write_volatile(MEM_ADDR_2, INIT_VALUE_2);
+            for _ in 0..32 {
+                let mut value = read_volatile(MEM_ADDR_2);
+                value >>= 1;
+                write_volatile(MEM_ADDR_2, value);
             }
-            nop();
         }
     }
 }