Simple test machine can now load an arbitrary program binary

.gitignore

@@ -1,2 +1,3 @@
 /target
 *.pdf
+*.bin

.vscode/launch.json

@@ -5,6 +5,8 @@
     "version": "0.2.0",
     "configurations": [
 
+
+
         {
             "type": "lldb",
             "request": "launch",
@@ -57,7 +59,7 @@
                     "kind": "bin"
                 }
             },
-            "args": [],
+            "args": ["simple_test_machine\\programs\\mult10.bin"],
             "cwd": "${workspaceFolder}"
         },
     ]

simple_test_machine/programs/hello.asm

@@ -0,0 +1,37 @@
+        # Load string into memory at the output address
+        0xA2, b'H',             # LDX H
+        0x86, output_addr,      # STX
+        0xA2, b'e',             # LDX e
+        0x86, output_addr + 1,  # STX
+        0xA2, b'l',             # LDX l
+        0x86, output_addr + 2,  # STX
+        0xA2, b'l',             # LDX l
+        0x86, output_addr + 3,  # STX
+        0xA2, b'o',             # LDX o
+        0x86, output_addr + 4,  # STX
+
+        0xA2, b' ',             # LDX ' '
+        0x86, output_addr + 5,  # STX
+
+        0xA2, b'w',             # LDX w
+        0x86, output_addr + 6,  # STX
+        0xA2, b'o',             # LDX o
+        0x86, output_addr + 7,  # STX
+        0xA2, b'r',             # LDX r
+        0x86, output_addr + 8,  # STX
+        0xA2, b'l',             # LDX l
+        0x86, output_addr + 9,  # STX
+        0xA2, b'd',             # LDX d
+        0x86, output_addr + 10, # STX
+        0xA2, b'!',             # LDX !
+        0x86, output_addr + 11, # STX
+
+        0xA2, 0x00,             # LDX 0
+        0x86, output_addr + 12, # STX
+
+        # Set flag to do the print
+        0xA2, 0x01,             # LDX 1
+        0x86, print_flag_addr,  # STX
+
+        # End the program
+        0x60                    # RTS

simple_test_machine/programs/mult10.asm

@@ -0,0 +1,26 @@
+
+; Multiply 7 with 10 and print the result
+
+        ; FAST MULTIPLY program from:
+        ; http://6502.org/source/integers/fastx10.htm
+main    LDA #7      ; load 7 into the accumulator
+        ASL         ;multiply by 2
+        STA TEMP    ;temp store in TEMP
+        ASL         ;again multiply by 2 (*4)
+        ASL         ;again multiply by 2 (*8)
+        CLC
+        ADC TEMP    ;as result, A = x*8 + x*2
+        
+        ; PRINT RESULT
+        STA $A0          ; 0x85, 0xA0, ; store A into the output addr
+        LDX #0           ; 0xA2, 0x00, ; null terminator
+        STX $A1          ; 0x86, 0xA1, ; store null terminator to output addr + 1
+
+        ; Set flag to do the print
+        LDX #1           ; 0xA2, 0x01, 
+        STX $9F          ; 0x86, 0x9F, 
+
+        ; End the program
+        RTS            ; 0x60 
+
+        TEMP    .byte 0

simple_test_machine/src/machine.rs

@@ -52,11 +52,10 @@ impl Bus for TBus
 //				CONSOLE
 //|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 
-pub const OUTPUT_ADDR: u16 = 0x00A0;
-pub const PRINT_BYTE_FLAG: u16 = 0x009E;
-pub const PRINT_STR_FLAG: u16 = 0x009F;
+pub const OUTPUT_ADDR: u16 = 0x00A0;        // Put values to be printed at this location!
+pub const PRINT_BYTE_FLAG: u16 = 0x009F;    // Then set one of these flags to trigger the print
+pub const PRINT_STR_FLAG: u16 = 0x009E;     //  and indicate what type is being printed.
 
-// TODO: Handle input
 struct OutputConsole
 {
 

simple_test_machine/src/main.rs

@@ -1,13 +1,35 @@
-use machine::{OUTPUT_ADDR, PRINT_STR_FLAG, PRINT_BYTE_FLAG, TestMachine};
 
 
+use std::{ fs, env };
+
 mod machine;
+use machine::{OUTPUT_ADDR, PRINT_STR_FLAG, PRINT_BYTE_FLAG, TestMachine};
+
+
 
 fn main()
 {
-    hello_world_test();
-    println!();
-    fast_mult_by_10();
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() < 2
+    {
+        println!("No program provided, running internal test programs...");
+        hello_world_test();
+        println!();
+        fast_mult_by_10(7);
+
+        return;
+    }
+
+    let program = fs::read(&args[1]).expect(&format!("Failed read program file: {}", &args[1]));
+    
+    let mut vm = TestMachine::new();
+
+    vm.load_program(&program);
+    vm.reset();
+    vm.run_program();
+
+    println!("Program stopped");
 }
 
 fn hello_world_test()
@@ -66,7 +88,7 @@ fn hello_world_test()
 
 }
 
-fn fast_mult_by_10()
+fn fast_mult_by_10(val: u8)
 {
     // Program from:
     // http://6502.org/source/integers/fastx10.htm
@@ -88,7 +110,7 @@ fn fast_mult_by_10()
 
     let program = 
     [
-        0xA9, 0x07,         // LDA 7    - The value we want to multiply
+        0xA9, val,         // LDA val    - The value we want to multiply
 
         // START OF MULT10 FUNCTION
         0x0A,               // ASL ;multiply by 2

todo/todo.todo

@@ -7,6 +7,7 @@ General:
 
 Test Machine:
     ✔ Hello world program @done(24-01-19 17:09)
+    ✔ Load and run a given program binary @done(24-01-22 17:08)
 
 CPU:
     Signals: