Implement inhx format

inhx is the original Intel hex format.

1 files changed, 43 insertions, 0 deletions

diff --git a/src/formats/mod.rs b/src/formats/mod.rs
index 42d198c..82f19f1 100644
--- a/src/formats/mod.rs
+++ b/src/formats/mod.rs
@@ -1,2 +1,45 @@
+mod inhx;
 mod inhx32;
+
+pub use inhx::*;
 pub use inhx32::*;
+
+
+pub struct InhxRecord {
+    bytes: Vec<u8>,
+}
+
+impl InhxRecord {
+    pub fn new() -> Self {
+        Self { bytes: Vec::new() }
+    }
+
+    pub fn byte(&mut self, byte: u8) {
+        self.bytes.push(byte);
+    }
+
+    pub fn be_double(&mut self, double: u16) {
+        let [high, low] = double.to_be_bytes();
+        self.byte(high);
+        self.byte(low);
+    }
+
+    pub fn le_double(&mut self, double: u16) {
+        let [high, low] = double.to_be_bytes();
+        self.byte(low);
+        self.byte(high);
+    }
+
+    pub fn to_string(self) -> String {
+        let mut sum: u8 = 0;
+        for byte in &self.bytes {
+            sum = sum.wrapping_add(*byte);
+        }
+        let checksum = sum.wrapping_neg();
+        let mut output = String::new();
+        for byte in &self.bytes {
+            output.push_str(&format!("{byte:0>2X}"));
+        }
+        format!(":{output}{checksum:0>2X}\n")
+    }
+}