From da5c8173a56d5be7fa23d2b18eaba1542aa31dd6 Mon Sep 17 00:00:00 2001
From: Ben Bridle <ben@derelict.engineering>
Date: Fri, 28 Feb 2025 14:35:04 +1300
Subject: Implement inhx format

inhx is the original Intel hex format.
---
 src/formats/inhx32.rs | 51 ++++++---------------------------------------------
 1 file changed, 6 insertions(+), 45 deletions(-)

(limited to 'src/formats/inhx32.rs')

diff --git a/src/formats/inhx32.rs b/src/formats/inhx32.rs
index d9c31d3..fd7fd7b 100644
--- a/src/formats/inhx32.rs
+++ b/src/formats/inhx32.rs
@@ -16,47 +16,8 @@ pub fn format_inhx32(words: &[Word]) -> String {
     return output;
 }
 
-struct Record {
-    bytes: Vec<u8>,
-}
-
-impl Record {
-    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")
-    }
-}
-
-fn data_record(words: &[Word], address: u16) -> Record {
-    let mut record = Record::new();
+fn data_record(words: &[Word], address: u16) -> InhxRecord {
+    let mut record = InhxRecord::new();
     record.byte((words.len() * 2) as u8);
     record.be_double(address * 2);
     record.byte(0x00);
@@ -69,8 +30,8 @@ fn data_record(words: &[Word], address: u16) -> Record {
     return record;
 }
 
-fn extended_linear_address(address: u16) -> Record {
-    let mut record = Record::new();
+fn extended_linear_address(address: u16) -> InhxRecord {
+    let mut record = InhxRecord::new();
     record.byte(0x02);
     record.be_double(0x0000);
     record.byte(0x04);
@@ -78,8 +39,8 @@ fn extended_linear_address(address: u16) -> Record {
     return record;
 }
 
-fn terminating_record() -> Record {
-    let mut record = Record::new();
+fn terminating_record() -> InhxRecord {
+    let mut record = InhxRecord::new();
     record.byte(0x00);
     record.be_double(0x0000);
     record.byte(0x01);
-- 
cgit v1.2.3-70-g09d2