dsa lib bugfixes

assembler/src/assembler/lexer.rs

@@ -7,7 +7,6 @@ use common::prelude::Register;
 pub fn lexer(mut program: String, module: u64) -> Result<Vec<Token>, AssembleError> {
     let mut tokens = Vec::new();
 
-    program = program.replace(',', "");
     let lines = program.lines();
     let mut literal = String::new();
 
@@ -39,6 +38,11 @@ pub fn lexer(mut program: String, module: u64) -> Result<Vec<Token>, AssembleErr
                 continue;
             }
 
+            let token = token.trim_end_matches(',');
+            if token.is_empty() {
+                continue;
+            }
+
             if let Some(token) = parse_register(token)? {
                 tokens.push(token);
             } else if let Some(token) = parse_opcode(token)? {
@@ -61,6 +65,8 @@ pub fn lexer(mut program: String, module: u64) -> Result<Vec<Token>, AssembleErr
         }
     }
 
+    println!("{:#?}", tokens);
+
     Ok(tokens)
 }
 pub fn parse_register(token: &str) -> Result<Option<Token>, AssembleError> {

assembler/src/assembler/model.rs

@@ -51,19 +51,26 @@ impl fmt::Display for Node {
             .as_ref()
             .map_or_else(String::new, |symbol| format!("{symbol}:\n"));
 
+        let args = self
+            .args()
+            .into_iter()
+            .map(|arg| arg.to_string())
+            .collect::<Vec<_>>()
+            .join(" ");
+
         write!(
             f,
-            "\x1b[93m{} \t\x1b[94m{} \x1b[37m{:?} \x1b[0m",
+            "\x1b[93m{} \t\x1b[94m{} \x1b[37m{} \x1b[0m",
             symbol,
             self.opcode(),
-            self.args()
+            args,
         )
     }
 }
 
 impl fmt::Display for Symbol {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{} ( module: {})", self.name, self.module)
+        write!(f, "{} [ID:{}]", self.name, self.module)
     }
 }
 
@@ -174,6 +181,18 @@ pub enum Token {
     Opcode(Opcode),
 }
 
+impl fmt::Display for Token {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Symbol(symbol) => write!(f, "{}", symbol),
+            Self::Register(register) => write!(f, "{}", register),
+            Self::Immediate(immediate) => write!(f, "{}", immediate),
+            Self::StringLit(string_lit) => write!(f, "{}", string_lit),
+            Self::Opcode(opcode) => write!(f, "{}", opcode),
+        }
+    }
+}
+
 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 pub enum TokenType {
     Symbol,

resources/dsa/lib/io/print.dsa

@@ -65,7 +65,19 @@ print_word:
     ldw bpr, rg0, 8
     ldw current, rg1
 
-    stw rg0, rg1
+    addi rg1, 3
+
+    stb rg0, rg1
+    subi rg1, 1
+    shr rg0, 8
+    stb rg0, rg1
+    subi rg1, 1
+    shr rg0, 8
+    stb rg0, rg1
+    subi rg1, 1
+    shr rg0, 8
+    stb rg0, rg1
+
     addi rg1, 4
     jmp _end
 
@@ -175,18 +187,24 @@ print_newline:
     push bpr
     mov spr, bpr
 
+    // load variables into registers
     ldw display, rg0
     ldw current, rg1
+
+    // get the offset from the display base
     sub rg1, rg0, rg0
 
     lwi 80, rg2
+    pusha 3
     push rg0
     push rg2
     call maths::divmod
-    pop rg2
-    addi rg2, 80
-    ldw display, rg1
-    add rg1, rg2, rg1
+    pop zero  // result
+    pop rg3 // remainder
+    popa 3
+
+    sub rg1, rg3, rg2
+    addi rg2, 80, rg1
 
     // _end saves the display state
     jmp _end

resources/dsa/lib/maths/fib.dsa

@@ -4,24 +4,25 @@ fib_n:
 	push bpr
 	mov spr, bpr
 
-	ldw bpr, rg1, 8  // load op 2
+	ldw bpr, rg0, 8  // load arg
+    mov rg1, rg2
+    lwi 1, rg1
 
 start:
-    mov rg1, rg2
-    add rg1, rg2, acc
+    add rg1, rg2, rg3
 
     pusha 4
     push rg1
-    call print::print_hex_word
-    pop rg1
+    call print::print_hex_byte
+    call print::print_newline
+    pop zero
     popa 4
 
     mov rg2, rg1
-    mov acc, rg2
+    mov rg3, rg2
 
-    cmp rg0, zero
     dec rg0
-
+    cmp rg0, zero
     jgt start
 
     stw rg1, bpr, 8

resources/dsa/main.dsa

@@ -1,3 +1,7 @@
+include fib: "./lib/maths/fib.dsa" 
+include maths: "./lib/maths/core.dsa"
+include print: "./lib/io/print.dsa"
+
 dw idt: 0xFFFF0000
 dw stack: 0x10000
 init:
@@ -9,11 +13,59 @@ init:
 	ldw stack, bpr
 	mov bpr, spr
 
+dw string: "hello world"
 start:
-    lwi 10, rg0
+
+	lwi 37, rg0
+	lwi 12, rg1
 	push rg0
-    call maths::fib_n
+	push rg1
+	call maths::divmod
+	pop rg0 // result
+	pop rg1 // remainder
+
+	push rg1
+	push rg0
+	call print::print_hex_byte
+	call print::print_whitespace
 	pop zero
+	call print::print_hex_byte
+	call print::print_newline
+
+	lwi string, rg0
+    //lwi 10, rg0
+    pusha 4
+	push rg0
+	call print::print
+    //call fib::fib_n
+    pop zero
+	call print::print_newline
+	popa 4
+
+	pusha 4
+	push rg0
+	call print::print
+    //call fib::fib_n
+    pop zero
+	call print::print_newline
+	popa 4
+
+	pusha 4
+	push rg0
+	call print::print
+    //call fib::fib_n
+    pop zero
+	call print::print_newline
+	popa 4
+
+	pusha 4
+	push rg0
+	call print::print
+    //call fib::fib_n
+    pop zero
+	call print::print_newline
+	popa 4
+
     hlt
 
 // fault handler in case we fail DSA.

resources/dsa/testprint.dsa

@@ -64,9 +64,6 @@ start:
 	call print::print
 	pop zero
 
-	lli 3, rg0
-	ldw rg0, rg0
-
 	hlt