86 lines
2.7 KiB
Rust
86 lines
2.7 KiB
Rust
#![no_std]
|
||
|
||
macro_rules! constmod {
|
||
($vis:vis $mname:ident($repr:ty) { $($cname:ident = $val:expr),* $(,)? }) => {
|
||
$vis mod $mname {
|
||
$(pub const $cname: $repr = $val;)*
|
||
}
|
||
};
|
||
}
|
||
|
||
constmod!(pub opcode(u8) {
|
||
NOP = 0, // N; Do nothing
|
||
|
||
ADD = 1, // RRR; #0 ← #1 + #2
|
||
SUB = 2, // RRR; #0 ← #1 - #2
|
||
MUL = 3, // RRR; #0 ← #1 × #2
|
||
DIV = 4, // RRR; #0 ← #1 ÷ #2
|
||
REM = 5, // RRR; #0 ← #1 % #2
|
||
AND = 6, // RRR; #0 ← #1 & #2
|
||
OR = 7, // RRR; #0 ← #1 | #2
|
||
XOR = 8, // RRR; #0 ← #1 ^ #2
|
||
SL = 9, // RRR; #0 ← #1 « #2
|
||
SR = 10, // RRR; #0 ← #1 » #2
|
||
SRS = 11, // RRR; #0 ← #1 » #2 (signed)
|
||
NOT = 12, // RR; #0 ← !#1
|
||
|
||
ADDF = 13, // RRR; #0 ← #1 +. #2
|
||
SUBF = 14, // RRR; #0 ← #1 +. #2
|
||
MULF = 15, // RRR; #0 ← #1 +. #2
|
||
DIVF = 16, // RRR; #0 ← #1 +. #2
|
||
|
||
ADDI = 17, // RRI; #0 ← #1 + imm #2
|
||
MULI = 18, // RRI; #0 ← #1 × imm #2
|
||
REMI = 19, // RRI; #0 ← #1 % imm #2
|
||
ANDI = 20, // RRI; #0 ← #1 & imm #2
|
||
ORI = 21, // RRI; #0 ← #1 | imm #2
|
||
XORI = 22, // RRI; #0 ← #1 ^ imm #2
|
||
|
||
SLI = 23, // RRI; #0 ← #1 « imm #2
|
||
SRI = 24, // RRI; #0 ← #1 » imm #2
|
||
SRSI = 25, // RRI; #0 ← #1 » imm #2 (signed)
|
||
|
||
ADDFI = 26, // RRI; #0 ← #1 +. imm #2
|
||
MULFI = 27, // RRI; #0 ← #1 *. imm #2
|
||
|
||
CP = 28, // RR; Copy #0 ← #1
|
||
LI = 29, // RI; Load immediate, #0 ← imm #1
|
||
LB = 30, // RRI; Load byte (8 bits), #0 ← [#1 + imm #2]
|
||
LD = 31, // RRI; Load doublet (16 bits)
|
||
LQ = 32, // RRI; Load quadlet (32 bits)
|
||
LO = 33, // RRI; Load octlet (64 bits)
|
||
SB = 34, // RRI; Store byte, [#1 + imm #2] ← #0
|
||
SD = 35, // RRI; Store doublet
|
||
SQ = 36, // RRI; Store quadlet
|
||
SO = 37, // RRI; Store octlet
|
||
|
||
JMP = 38, // RI; Unconditional jump [#0 + imm #1]
|
||
JEQ = 39, // RRI; if #0 = #1 → jump imm #2
|
||
JNE = 40, // RRI; if #0 ≠ #1 → jump imm #2
|
||
JLT = 41, // RRI; if #0 < #1 → jump imm #2
|
||
JGT = 52, // RRI; if #0 > #1 → jump imm #2
|
||
JLTU = 53, // RRI; if #0 < #1 → jump imm #2 (unsigned)
|
||
JGTU = 54, // RRI; if #0 > #1 → jump imm #2 (unsigned)
|
||
RET = 55, // N; Return
|
||
ECALL = 56, // N; Issue system call
|
||
});
|
||
|
||
#[repr(packed)]
|
||
pub struct ParamRRR(pub u8, pub u8, pub u8);
|
||
#[repr(packed)]
|
||
pub struct ParamRRI(pub u8, pub u8, pub u64);
|
||
#[repr(packed)]
|
||
pub struct ParamRR(pub u8, pub u8);
|
||
#[repr(packed)]
|
||
pub struct ParamRI(pub u8, pub u64);
|
||
|
||
/// # Safety
|
||
/// TODO.
|
||
pub unsafe trait OpParam {}
|
||
unsafe impl OpParam for ParamRRR {}
|
||
unsafe impl OpParam for ParamRRI {}
|
||
unsafe impl OpParam for ParamRR {}
|
||
unsafe impl OpParam for ParamRI {}
|
||
unsafe impl OpParam for u64 {}
|
||
unsafe impl OpParam for () {}
|