tjh.dev
Implementation of the UM-32 "Universal Machine" as described by the Cult of the Bound Variable
panic on illegal operations
+12
-1
src/main.rs
+12
-1
src/main.rs
···
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a: Register,
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value: u32,
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},
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+
IllegalInstruction,
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}
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impl From<Platter> for Op {
···
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let value = value & 0x01ffffff;
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Self::Orthography { a, value }
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}
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-
_ => Self::Halt,
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+
_ => Self::IllegalInstruction,
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}
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}
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}
···
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Op::Orthography { a, value } => {
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self.save_register(a, value);
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}
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+
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+
Op::IllegalInstruction => self.panic(),
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}
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self.program_counter += 1;
···
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403
self.free_blocks.push(block);
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self.memory[block as usize] = vec![];
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}
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+
}
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+
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+
#[inline(never)]
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+
fn panic(&self) -> ! {
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+
panic!(
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+
"universal machine failure: instruction: {:08x}, program_counter: {:08x}, registers: {:08x?}",
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+
self.memory[0][self.program_counter as usize], self.program_counter, self.registers
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+
)
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}
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}