2023-06-07 08:07:37 -05:00
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#![no_std]
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2023-06-06 15:03:37 -05:00
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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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2023-06-06 17:02:27 -05:00
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NOP = 0, // N; Do nothing
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2023-06-06 15:03:37 -05:00
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2023-06-09 11:25:37 -05:00
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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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SL = 9, // RRR; #0 ← #1 « #2
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SR = 10, // RRR; #0 ← #1 » #2
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SRS = 11, // RRR; #0 ← #1 » #2 (signed)
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CMP = 12, // RRR; #0 ← #1 <=> #2
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CMPU = 13, // RRR; #0 ← #1 <=> #2 (unsigned)
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NOT = 14, // RR; #0 ← !#1
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2023-06-09 11:25:37 -05:00
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ADDF = 15, // RRR; #0 ← #1 +. #2
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SUBF = 16, // RRR; #0 ← #1 +. #2
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MULF = 17, // RRR; #0 ← #1 +. #2
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DIVF = 18, // RRR; #0 ← #1 +. #2
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ADDI = 19, // RRI; #0 ← #1 + imm #2
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MULI = 20, // RRI; #0 ← #1 × imm #2
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REMI = 21, // RRI; #0 ← #1 % imm #2
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ANDI = 22, // RRI; #0 ← #1 & imm #2
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ORI = 23, // RRI; #0 ← #1 | imm #2
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XORI = 24, // RRI; #0 ← #1 ^ imm #2
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SLI = 25, // RRI; #0 ← #1 « imm #2
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SRI = 26, // RRI; #0 ← #1 » imm #2
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SRSI = 27, // RRI; #0 ← #1 » imm #2 (signed)
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CMPI = 28, // RRI; #0 ← #1 <=> imm #2
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CMPUI = 29, // RRI; #0 ← #1 <=> imm #2 (unsigned)
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ADDFI = 30, // RRI; #0 ← #1 +. imm #2
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MULFI = 31, // RRI; #0 ← #1 *. imm #2
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2023-06-09 11:25:37 -05:00
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CP = 32, // RR; Copy #0 ← #1
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LI = 33, // RI; Load immediate, #0 ← imm #1
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LB = 34, // RRI; Load byte (8 bits), #0 ← [#1 + imm #2]
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LD = 35, // RRI; Load doublet (16 bits)
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LQ = 36, // RRI; Load quadlet (32 bits)
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LO = 37, // RRI; Load octlet (64 bits)
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SB = 38, // RRI; Store byte, [#1 + imm #2] ← #0
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SD = 39, // RRI; Store doublet
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SQ = 40, // RRI; Store quadlet
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SO = 41, // RRI; Store octlet
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JMP = 42, // RI; Unconditional jump [#0 + imm #1]
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JEQ = 43, // RRI; if #0 = #1 → jump imm #2
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JNE = 44, // RRI; if #0 ≠ #1 → jump imm #2
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JLT = 45, // RRI; if #0 < #1 → jump imm #2
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JGT = 46, // RRI; if #0 > #1 → jump imm #2
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JLTU = 47, // RRI; if #0 < #1 → jump imm #2 (unsigned)
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JGTU = 48, // RRI; if #0 > #1 → jump imm #2 (unsigned)
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RET = 49, // N; Return
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ECALL = 50, // N; Issue system call
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2023-06-06 15:03:37 -05:00
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});
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2023-06-08 16:23:23 -05:00
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#[repr(packed)]
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pub struct ParamRRR(pub u8, pub u8, pub u8);
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#[repr(packed)]
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pub struct ParamRRI(pub u8, pub u8, pub u64);
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#[repr(packed)]
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pub struct ParamRR(pub u8, pub u8);
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#[repr(packed)]
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pub struct ParamRI(pub u8, pub u64);
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2023-06-06 15:03:37 -05:00
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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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