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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, // N; Do nothing
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ADD = 1, // RRR; #0 ← #1 + #2
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SUB = 2, // RRR; #0 ← #1 - #2
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MUL = 3, // RRR; #0 ← #1 × #2
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DIV = 4, // RRR; #0 ← #1 ÷ #2
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REM = 5, // RRR; #0 ← #1 % #2
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AND = 6, // RRR; #0 ← #1 & #2
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OR = 7, // RRR; #0 ← #1 | #2
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XOR = 8, // RRR; #0 ← #1 ^ #2
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NOT = 9, // RR; #0 ← !#1
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2023-06-06 15:03:37 -05:00
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// TODO: Add instruction for integer and float
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// reg ← reg + imm instructions
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2023-06-06 17:02:27 -05:00
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ADDF = 10, // RRR; #0 ← #1 +. #2
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SUBF = 11, // RRR; #0 ← #1 +. #2
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MULF = 12, // RRR; #0 ← #1 +. #2
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DIVF = 13, // RRR; #0 ← #1 +. #2
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CP = 14, // RR; Copy #0 ← #1
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LI = 15, // RI; Load immediate, #0 ← imm #1
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LB = 16, // RRI; Load byte (8 bits), #0 ← [#1 + imm #2]
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LD = 17, // RRI; Load doublet (16 bits)
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LQ = 18, // RRI; Load quadlet (32 bits)
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LO = 19, // RRI; Load octlet (64 bits)
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SB = 20, // RRI; Store byte, [#1 + imm #2] ← #0
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SD = 21, // RRI; Store doublet
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SQ = 22, // RRI; Store quadlet
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SO = 23, // RRI; Store octlet
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2023-06-06 15:03:37 -05:00
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2023-06-06 17:02:27 -05:00
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PAGEMAP = 24, // ?; Map a page
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PAGEUNMAP = 25, // ?; Unmap a page
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PAGEMP = 26, // ?; Page modify protection flags
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2023-06-06 15:03:37 -05:00
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2023-06-06 17:02:27 -05:00
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JMP = 100, // I; Unconditional jump
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JMPCOND = 101, // ?; Conditional jump
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RET = 103, // N; Return
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ECALL = 255, // N; Issue system call
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2023-06-06 15:03:37 -05:00
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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 ParamRRI(pub u8, pub u8, pub u64);
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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 ParamRRI {}
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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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