From 77086155b5ecc5802475669efeabaa1d5ef78a87 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Rativel?=
 <remi.rativel@etudiant.univ-rennes1.fr>
Date: Wed, 5 Apr 2023 15:47:46 +0200
Subject: [PATCH 1/2] started to implement sc_sem_create and auxiliar function

---
 src/kernel/exception.rs | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/kernel/exception.rs b/src/kernel/exception.rs
index b020f6e..bb99263 100644
--- a/src/kernel/exception.rs
+++ b/src/kernel/exception.rs
@@ -105,7 +105,13 @@ fn syscall(machine: &mut Machine, system: &mut System) -> Result<MachineOk, Mach
         SC_PERROR => todo!(),
         SC_P => todo!(),
         SC_V => todo!(),
-        SC_SEM_CREATE => todo!(),
+        SC_SEM_CREATE => {
+            let addr_name = machine.read_int_register(10);
+            let initial_count = machine.read_int_register((11));
+            let size = get_length_param(addr_name as usize, machine);
+            Ok(MachineOk::Ok)
+
+        },
         SC_SEM_DESTROY => todo!(),
         SC_LOCK_CREATE => todo!(),
         SC_LOCK_DESTROY => todo!(),
@@ -129,6 +135,17 @@ fn syscall(machine: &mut Machine, system: &mut System) -> Result<MachineOk, Mach
     }
 }
 
+fn get_length_param(addr: usize, machine: & Machine) -> usize{
+    let mut i = 0;
+    let mut c = 1;
+    while c!= 0 {
+        c = machine.read_memory(1, addr + i);
+        i+=1;
+
+    }
+    i + 1
+}
+
 #[cfg(test)]
 mod test {
     use crate::kernel::exception::{SC_SHUTDOWN, SC_WRITE};

From a151bef7efb1d15415d04b7830ee050869699469 Mon Sep 17 00:00:00 2001
From: Samy Solhi <samy.solhi@etudiant.univ-rennes1.fr>
Date: Wed, 5 Apr 2023 15:57:34 +0200
Subject: [PATCH 2/2] added fn get string param

---
 src/kernel/exception.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/kernel/exception.rs b/src/kernel/exception.rs
index 24555fe..978cec6 100644
--- a/src/kernel/exception.rs
+++ b/src/kernel/exception.rs
@@ -120,6 +120,24 @@ fn syscall(machine: &Machine) -> Result<MachineOk, MachineError> {
     }
 }
 
+fn get_string_param(addr: i64, maxlen: i64, machine: &Machine) -> Vec<char>{
+    let mut dest = Vec::with_capacity(maxlen as usize);
+
+    let mut i = 0;
+    let mut c = 1;
+
+    while c != 0 && i < maxlen {
+        c = machine.read_memory(1, (addr + i) as usize);
+        //dest.push(c as char);
+        dest[i] = c as char;
+        i += 1;
+    }
+
+    dest[maxlen - 1] = '\0';
+
+    dest
+}
+
 #[cfg(test)]
 mod test {
     use crate::kernel::exception::{SC_SHUTDOWN, SC_WRITE};