wrote a println example in .dsa

resources/dsa/print.dsa

@@ -0,0 +1,33 @@
+db stack: 0x10000
+db screen: 0x20000
+db string: "Dominos sucks!"
+db length: 14
+
+cll init
+cll start
+hlt
+
+init:
+    ldw stack, bpr
+    mov bpr, spr
+    ret
+
+start:
+    ldb length, rg0
+    lwi string, rg1
+    lwi display, rg2
+
+loop:
+    // read from string and write to display
+    ldb rg1, rg3, rg4
+    stb rg3, rg1, rg4
+
+    // increment the offset & decrement the loop counter
+    inc rg4
+    dec rg0
+
+    // if loop counter <= 0 return.
+    cmp rg0, zero,
+    jgt loop
+    ret
+

src/emulator/system/processor.rs

@@ -216,7 +216,7 @@ impl Executable for Instruction {
 
             // Loads a 16-bit literal value into reg, setting the bottom 16 bits of the word. To populate the upper 16 bits, see LUI.
             Self::LoadLowerImmediate(reg, imm) => {
-                *cpu.reg(reg) = (cpu.get(reg) & 0xFFFF_0000) | imm as u32;
+                *cpu.reg(reg) = imm as u32;
             }
 
             // Loads a 16-bit literal value into reg, setting the top 16 bits of the word. To populate the lower 16 bits, see LLI.