57 lines
1.2 KiB
Rust
57 lines
1.2 KiB
Rust
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pub const REG_COUNT: usize = 60;
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macro_rules! constmod {
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($vis:vis $mname:ident($repr:ty) { $($cname:ident = $val:expr),* $(,)? }) => {
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$vis mod $mname {
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$(pub const $cname: $repr = $val;)*
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}
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};
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}
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constmod!(pub opcode(u8) {
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NOP = 0, // _
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ADD = 1, // RRR
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SUB = 2, // RRR
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MUL = 3, // RRR
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DIV = 4, // RRR
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REM = 5, // RRR
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AND = 6, // RRR
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OR = 7, // RRR
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XOR = 8, // RRR
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NOT = 9, // RR
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// TODO: Add instruction for integer and float
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// reg ← reg + imm instructions
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ADDF = 10, // RRR
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SUBF = 11, // RRR
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MULF = 12, // RRR
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DIVF = 13, // RRR
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LI = 14, // RI
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LD = 15, // RI
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ST = 16, // RI
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MAPPAGE = 17, // ?
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UNMAPPAGE = 18, // ?
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JMP = 100, // I
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JMPCOND = 101, // I
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RET = 103, // _
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ECALL = 255, // _
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});
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#[repr(packed)] pub struct ParamRRR(pub u8, pub u8, pub u8);
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#[repr(packed)] pub struct ParamRR(pub u8, pub u8);
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#[repr(packed)] pub struct ParamRI(pub u8, pub u64);
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/// # Safety
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/// TODO.
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pub unsafe trait OpParam {}
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unsafe impl OpParam for ParamRRR {}
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unsafe impl OpParam for ParamRR {}
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unsafe impl OpParam for ParamRI {}
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unsafe impl OpParam for u64 {}
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unsafe impl OpParam for () {}
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