| 104 | } |
| 105 | |
| 106 | pub fn generate_rust(filename: &str, out_dir: &Path) -> Result<(), Error> { |
| 107 | let mut rust = String::new(); |
| 108 | |
| 109 | // Generate a pretty-printing method for debugging. |
| 110 | rust.push_str("pub fn print(inst: &RawInst) -> String {\n"); |
| 111 | rust.push_str("match inst {\n"); |
| 112 | for inst @ Inst { name, .. } in OPS.iter().chain(EXTENDED_OPS) { |
| 113 | if inst.skip() { |
| 114 | continue; |
| 115 | } |
| 116 | |
| 117 | let mut pat = String::new(); |
| 118 | let mut locals = String::new(); |
| 119 | let mut format_string = String::new(); |
| 120 | format_string.push_str(inst.snake_name); |
| 121 | for (i, op) in inst.operands().enumerate() { |
| 122 | match op { |
| 123 | Operand::Normal { name, ty } | Operand::Writable { name, ty } => { |
| 124 | pat.push_str(name); |
| 125 | pat.push_str(","); |
| 126 | |
| 127 | if i > 0 { |
| 128 | format_string.push_str(","); |
| 129 | } |
| 130 | |
| 131 | if ty == "UpperXRegSet" { |
| 132 | format_string.push_str(" {"); |
| 133 | format_string.push_str(name); |
| 134 | format_string.push_str(":?}"); |
| 135 | continue; |
| 136 | } |
| 137 | |
| 138 | format_string.push_str(" {"); |
| 139 | format_string.push_str(name); |
| 140 | format_string.push_str("}"); |
| 141 | if ty.contains("Reg") { |
| 142 | if matches!(op, Operand::Writable { .. }) { |
| 143 | locals.push_str(&format!("let {name} = reg_name(*{name}.to_reg());\n")); |
| 144 | } else { |
| 145 | locals.push_str(&format!("let {name} = reg_name(**{name});\n")); |
| 146 | } |
| 147 | } |
| 148 | } |
| 149 | Operand::TrapCode { name, ty: _ } => { |
| 150 | pat.push_str(name); |
| 151 | pat.push_str(","); |
| 152 | format_string.push_str(&format!(" // trap={{{name}:?}}")); |
| 153 | } |
| 154 | Operand::Binop { src2, .. } => { |
| 155 | pat.push_str("dst, src1, src2,"); |
| 156 | format_string.push_str(" {dst}, {src1}, {src2}"); |
| 157 | locals.push_str(&format!("let dst = reg_name(*dst.to_reg());\n")); |
| 158 | locals.push_str(&format!("let src1 = reg_name(**src1);\n")); |
| 159 | if src2.contains("Reg") { |
| 160 | locals.push_str(&format!("let src2 = reg_name(**src2);\n")); |
| 161 | } |
| 162 | } |
| 163 | } |