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This repository was archived by the owner on Dec 27, 2024. It is now read-only.

Commit f075c3c

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brandonrosbrandonros
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‎src/emu/mod.rs

Lines changed: 2 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -4672,21 +4672,20 @@ impl Emu {
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}
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}
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// repe and repe are the same on x86 (0xf3) so you have to check if it is movement or comparison
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let is_string_movement = matches!(
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ins.mnemonic(),
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Mnemonic::Movsb | Mnemonic::Movsw | Mnemonic::Movsd | Mnemonic::Movsq |
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Mnemonic::Stosb | Mnemonic::Stosw | Mnemonic::Stosd | Mnemonic::Stosq |
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Mnemonic::Lodsb | Mnemonic::Lodsw | Mnemonic::Lodsd | Mnemonic::Lodsq
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);
4681-
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let is_string_comparison = matches!(
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ins.mnemonic(),
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Mnemonic::Cmpsb | Mnemonic::Cmpsw | Mnemonic::Cmpsd | Mnemonic::Cmpsq |
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Mnemonic::Scasb | Mnemonic::Scasw | Mnemonic::Scasd | Mnemonic::Scasq
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);
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if is_string_movement {
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// do not clear rep if it is a string movement
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} else if is_string_comparison {
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if ins.has_repe_prefix() && !self.flags.f_zf {
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self.rep = None;

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