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Fixed f_open with FA_OPEN_APPEND #4

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Fixed f_open with FA_OPEN_APPEND #4

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bc4d4f1
bugfix, in file append mode the seek pointer should not return to 0
S0urceror Feb 26, 2024
b62ae9e
bugfix not tested well, now working
S0urceror Feb 26, 2024
93d0d5d
Merge commit 'b62ae9e2e036873dff43b93666394c2701863a22' into HEAD
S0urceror Feb 26, 2024
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5 changes: 3 additions & 2 deletions src/agon_machine.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -999,7 +999,9 @@ impl AgonMachine {

// save the size in the FIL structure
let mut file_len = f.seek(SeekFrom::End(0)).unwrap();
f.seek(SeekFrom::Start(0)).unwrap();
if mode & mos::FA_SEEKEND == 0 {
f.seek(SeekFrom::Start(0)).unwrap();
}

// XXX don't support files larger than 512KiB
file_len = file_len.min(1<<19);
Expand All @@ -1018,7 +1020,6 @@ impl AgonMachine {
_ => cpu.state.reg.set24(Reg16::HL, 1)
}
}

}
Environment::new(&mut cpu.state, self).subroutine_return();
}
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1 change: 1 addition & 0 deletions src/mos.rs
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Expand Up @@ -21,6 +21,7 @@ pub const FILINFO_MEMBER_FNAME_256BYTES: u32 = 22;
pub const FA_WRITE: u32 = 2;
pub const FA_CREATE_NEW: u32 = 4;
pub const FA_CREATE_ALWAYS: u32 = 8;
pub const FA_SEEKEND: u32 = 0x20;

#[derive(Clone, Default)]
pub struct MosMap {
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