a minimal working demo on bare metal

2 files changed, 37 insertions, 0 deletions

diff --git a/src/machine/cgascr.rs b/src/machine/cgascr.rs
new file mode 100644
index 0000000..a43e073
--- /dev/null
+++ b/src/machine/cgascr.rs
@@ -0,0 +1,36 @@
+const CGA_START:u32 = 0xb8000;
+
+#[allow(dead_code)]
+pub struct CGAScreen{
+    max_cows:u32,
+    max_rows:u32,
+}
+
+#[allow(dead_code)]
+impl CGAScreen{
+    pub fn new(cows:u32, rows:u32) -> Self {
+        Self {max_cows: cows, max_rows:rows,}
+    }
+
+    pub fn set_pos(x:u32, y:u32){
+
+    }
+
+    pub fn get_pos(x:&mut u32, y:&mut u32){
+        // TODO
+        *x = 1;
+        *y = 1;
+    }
+
+    pub fn putchar(c:char, attr:u8){
+
+    }
+    
+    // this function should be the only one that "directly touches"
+    // the memory by address. 
+    // and since it's unsafe, it shouldn't be public
+    fn show(&self, x:u32, y:u32, c:char, attr:u8){
+
+    }
+
+}
diff --git a/src/machine/mod.rs b/src/machine/mod.rs
new file mode 100644
index 0000000..4622e0b
--- /dev/null
+++ b/src/machine/mod.rs
@@ -0,0 +1 @@
+pub mod cgascr;