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Add address deref, syntax, and deref sizes

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Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
This commit is contained in:
Alek Ratzloff
2020-02-25 12:07:24 -05:00
parent bdd08c6c5b
commit 5619c9dc87
11 changed files with 308 additions and 99 deletions
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33
src/vm/inst.rs
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@@ -134,6 +134,10 @@ pub enum Source {
Addr32(Addr),
Addr16(Addr),
Addr8(Addr),
RegAddr64(Reg),
RegAddr32(Reg),
RegAddr16(Reg),
RegAddr8(Reg),
Reg(Reg),
Imm(u64),
}
@@ -142,6 +146,7 @@ impl Source {
pub fn len(&self) -> usize {
match self {
Source::Addr64(_) | Source::Addr32(_) | Source::Addr16(_) | Source::Addr8(_) => 8,
Source::RegAddr64(_) | Source::RegAddr32(_) | Source::RegAddr16(_) | Source::RegAddr8(_) => 1,
Source::Reg(_) => 1,
Source::Imm(_) => 8,
}
@@ -154,6 +159,10 @@ pub enum Dest {
Addr32(Addr),
Addr16(Addr),
Addr8(Addr),
RegAddr64(Reg),
RegAddr32(Reg),
RegAddr16(Reg),
RegAddr8(Reg),
Reg(Reg),
}
@@ -161,23 +170,35 @@ impl Dest {
pub fn len(&self) -> usize {
match self {
Dest::Addr64(_) | Dest::Addr32(_) | Dest::Addr16(_) | Dest::Addr8(_) => 8,
Dest::RegAddr64(_) | Dest::RegAddr32(_) | Dest::RegAddr16(_) | Dest::RegAddr8(_) => 1,
Dest::Reg(_) => 1,
}
}
}
// TODO : make this an enum
pub const DEST_ADDR64: u8 = 0b0000;
pub const DEST_ADDR32: u8 = 0b0001;
pub const DEST_ADDR16: u8 = 0b0010;
pub const DEST_ADDR8: u8 = 0b0011;
pub const DEST_REG: u8 = 0b0100;
pub const DEST_REG_ADDR64: u8 = 0b0100;
pub const DEST_REG_ADDR32: u8 = 0b0101;
pub const DEST_REG_ADDR16: u8 = 0b0110;
pub const DEST_REG_ADDR8: u8 = 0b0111;
/* immediates - not used, invalid */
pub const DEST_REG: u8 = 0b1100;
pub const SOURCE_ADDR64: u8 = 0b0000;
pub const SOURCE_ADDR32: u8 = 0b0001;
pub const SOURCE_ADDR16: u8 = 0b0010;
pub const SOURCE_ADDR8: u8 = 0b0011;
pub const SOURCE_REG: u8 = 0b0100;
pub const SOURCE_IMM64: u8 = 0b0101;
pub const SOURCE_IMM32: u8 = 0b0110;
pub const SOURCE_IMM16: u8 = 0b0111;
pub const SOURCE_IMM8: u8 = 0b1000;
pub const SOURCE_REG_ADDR64: u8 = 0b0100;
pub const SOURCE_REG_ADDR32: u8 = 0b0101;
pub const SOURCE_REG_ADDR16: u8 = 0b0110;
pub const SOURCE_REG_ADDR8: u8 = 0b0111;
pub const SOURCE_IMM64: u8 = 0b1000;
pub const SOURCE_IMM32: u8 = 0b1001;
pub const SOURCE_IMM16: u8 = 0b1010;
pub const SOURCE_IMM8: u8 = 0b1011;
pub const SOURCE_REG: u8 = 0b1100;