Implement click-to-highlight

Highlights registers, instructions, arguments, symbols or addresses on click.

Resolves #7

Author: encounter

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "objdiff"
-version = "0.4.4"
+version = "0.5.0"
 edition = "2021"
 rust-version = "1.65"
 authors = ["Luke Street <luke@street.dev>"]

Cargo.toml

@@ -91,6 +91,7 @@ pub fn process_code(
             reloc: reloc.cloned(),
             branch_dest,
             line,
+            orig: None,
         });
         cur_addr += 4;
     }

src/obj/mips.rs

@@ -37,6 +37,7 @@ pub struct ObjSection {
     pub data_diff: Vec<ObjDataDiff>,
     pub match_percent: f32,
 }
+
 #[derive(Debug, Clone)]
 pub enum ObjInsArg {
     PpcArg(ppc750cl::Argument),
@@ -46,6 +47,40 @@ pub enum ObjInsArg {
     RelocWithBase,
     BranchOffset(i32),
 }
+
+// TODO derive PartialEq on ppc750cl::Argument so this isn't necessary
+impl PartialEq for ObjInsArg {
+    fn eq(&self, other: &Self) -> bool {
+        match (self, other) {
+            (ObjInsArg::PpcArg(a), ObjInsArg::PpcArg(b)) => {
+                use ppc750cl::Argument;
+                match (a, b) {
+                    (Argument::GPR(a), Argument::GPR(b)) => a == b,
+                    (Argument::FPR(a), Argument::FPR(b)) => a == b,
+                    (Argument::SR(a), Argument::SR(b)) => a == b,
+                    (Argument::SPR(a), Argument::SPR(b)) => a == b,
+                    (Argument::CRField(a), Argument::CRField(b)) => a == b,
+                    (Argument::CRBit(a), Argument::CRBit(b)) => a == b,
+                    (Argument::GQR(a), Argument::GQR(b)) => a == b,
+                    (Argument::Uimm(a), Argument::Uimm(b)) => a == b,
+                    (Argument::Simm(a), Argument::Simm(b)) => a == b,
+                    (Argument::Offset(a), Argument::Offset(b)) => a == b,
+                    (Argument::BranchDest(a), Argument::BranchDest(b)) => a == b,
+                    (Argument::Bit(a), Argument::Bit(b)) => a == b,
+                    (Argument::OpaqueU(a), Argument::OpaqueU(b)) => a == b,
+                    (_, _) => false,
+                }
+            }
+            (ObjInsArg::MipsArg(a), ObjInsArg::MipsArg(b)) => a == b,
+            (ObjInsArg::MipsArgWithBase(a), ObjInsArg::MipsArgWithBase(b)) => a == b,
+            (ObjInsArg::Reloc, ObjInsArg::Reloc) => true,
+            (ObjInsArg::RelocWithBase, ObjInsArg::RelocWithBase) => true,
+            (ObjInsArg::BranchOffset(a), ObjInsArg::BranchOffset(b)) => a == b,
+            (_, _) => false,
+        }
+    }
+}
+
 #[derive(Debug, Copy, Clone)]
 pub struct ObjInsArgDiff {
     /// Incrementing index for coloring
@@ -86,6 +121,8 @@ pub struct ObjIns {
     pub branch_dest: Option<u32>,
     /// Line info
     pub line: Option<u32>,
+    /// Original (unsimplified) instruction
+    pub orig: Option<String>,
 }
 #[derive(Debug, Clone, Default)]
 pub struct ObjInsDiff {

src/obj/mod.rs

@@ -1,7 +1,7 @@
 use std::collections::BTreeMap;
 
 use anyhow::Result;
-use ppc750cl::{disasm_iter, Argument};
+use ppc750cl::{disasm_iter, Argument, Ins, SimplifiedIns};
 
 use crate::obj::{ObjIns, ObjInsArg, ObjReloc, ObjRelocKind};
 
@@ -40,7 +40,7 @@ pub fn process_code(
                 _ => ins.code,
             };
         }
-        let simplified = ins.simplified();
+        let simplified = ins.clone().simplified();
         let mut args: Vec<ObjInsArg> = simplified
             .args
             .iter()
@@ -86,10 +86,21 @@ pub fn process_code(
             mnemonic: format!("{}{}", simplified.mnemonic, simplified.suffix),
             args,
             reloc: reloc.cloned(),
-            op: 0,
+            op: ins.op as u8,
             branch_dest: None,
             line,
+            orig: Some(format!("{}", basic_form(ins))),
         });
     }
     Ok((ops, insts))
 }
+
+// TODO make public in ppc750cl
+fn basic_form(ins: Ins) -> SimplifiedIns {
+    SimplifiedIns {
+        mnemonic: ins.op.mnemonic(),
+        suffix: ins.suffix(),
+        args: ins.fields().iter().flat_map(|field| field.argument()).collect(),
+        ins,
+    }
+}