Witch of Git - jade-rose/blob - toolchain/src/inst/format.rs

   1 use super::{AddImm, AluI as OpI, Data, Inst, LdSt, Op1, OpI3, OpR, Reg, Special, U3};
   2 use std::fmt::{self, Display, Formatter};
   3
   4 fn data(d: Data) -> &'static str {
   5     match d {
   6         Data::D1 => "1",
   7         Data::D2 => "2",
   8     }
   9 }
  10
  11 fn special(s: Special) -> &'static str {
  12     match s {
  13         Special::Data(d) => data(d),
  14         Special::Code => "C",
  15     }
  16 }
  17
  18 fn flag(x: bool) -> &'static str {
  19     if x {
  20         "!"
  21     } else {
  22         ""
  23     }
  24 }
  25
  26 impl Display for Inst {
  27     fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
  28         use Inst::*;
  29         match *self {
  30             Stop => write!(fmt, "STOP"),
  31             Nope => write!(fmt, "NOPE"),
  32             Prnt => write!(fmt, "PRNT"),
  33             CAbA => write!(fmt, "CABA"),
  34             COfA => write!(fmt, "COFA"),
  35             Alu1(Op1::Zero) => write!(fmt, "ZERO"),
  36             Alu1(Op1::Lsl1) => write!(fmt, "LSL1"),
  37             Alu1(Op1::Lsr1) => write!(fmt, "LSR1"),
  38             Alu1(Op1::Asr1) => write!(fmt, "ASR1"),
  39             Alu1(Op1::Incr) => write!(fmt, "INCR"),
  40             Alu1(Op1::Decr) => write!(fmt, "DECR"),
  41             Alu1(Op1::Comp) => write!(fmt, "COMP"),
  42             Alu1(Op1::Negt) => write!(fmt, "NEGT"),
  43             Get(s) => write!(fmt, "GET{}", special(s)),
  44             Set(s) => write!(fmt, "SET{}", special(s)),
  45             GetR(r) => write!(fmt, "GETR {}", r),
  46             SetR(r) => write!(fmt, "SETR {}", r),
  47             Swap(r) => write!(fmt, "SWAP {}", r),
  48             IsLt(r) => write!(fmt, "ISLT {}", r),
  49             AluR(OpR::Add, r) => write!(fmt, "ADDR {}", r),
  50             AluR(OpR::Sub, r) => write!(fmt, "SUBR {}", r),
  51             AluR(OpR::And, r) => write!(fmt, "ANDR {}", r),
  52             AluR(OpR::Ior, r) => write!(fmt, "IORR {}", r),
  53             AluR(OpR::Xor, r) => write!(fmt, "XORR {}", r),
  54             AluR(OpR::Lsl, r) => write!(fmt, "LSLR {}", r),
  55             AluR(OpR::Lsr, r) => write!(fmt, "LSRR {}", r),
  56             AluR(OpR::Asr, r) => write!(fmt, "ASRR {}", r),
  57             Mem(LdSt::Ld, d, r, i) => write!(fmt, "LD{}U {}{}", data(d), r, flag(i)),
  58             Mem(LdSt::St, d, r, i) => write!(fmt, "ST{}U {}{}", data(d), r, flag(i)),
  59             AluI(OpI::And(i)) => write!(fmt, "ANDI 0x{:02X}", i),
  60             AluI(OpI::Ior(i)) => write!(fmt, "IORI 0x{:02X}", i),
  61             AluI(OpI::Xor(i)) => write!(fmt, "XORI 0x{:02X}", i),
  62             AluI(OpI::Add(AddImm(i))) => write!(fmt, "ADDI {}", i),
  63             AluI(OpI::Compact(op, i)) => match op {
  64                 OpI3::Rol => write!(fmt, "ROLI {}", i),
  65                 OpI3::Lsl => write!(fmt, "LSLI {}", i),
  66                 OpI3::Lsr => write!(fmt, "LSRI {}", i),
  67                 OpI3::Asr => write!(fmt, "ASRI {}", i),
  68                 OpI3::Clr => write!(fmt, "CLRI {}", i),
  69                 OpI3::Ins => write!(fmt, "INSI {}", i),
  70                 OpI3::Tog => write!(fmt, "TOGI {}", i),
  71                 OpI3::Ext => write!(fmt, "EXTI {}", i),
  72             },
  73             BEzI(off) => write!(fmt, "BEZI {}", off),
  74             JOfI(i) => write!(fmt, "JOFI {}", i),
  75             CAbI(i) => write!(fmt, "CABI {}", i),
  76             COfI(i) => write!(fmt, "COFI {}", i),
  77             GetI(i) => write!(fmt, "GETI {}", i),
  78         }
  79     }
  80 }
  81
  82 impl Display for Reg {
  83     fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
  84         write!(fmt, "r{}", self.0)
  85     }
  86 }
  87
  88 impl Display for U3 {
  89     fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
  90         write!(fmt, "{}", self.0)
  91     }
  92 }