Preparations.

3 files changed, 25 insertions, 19 deletions

diff --git a/src/kernel/task/idt.cpp b/src/kernel/task/idt.cpp
index 9008083..c09034e 100644
--- a/src/kernel/task/idt.cpp
+++ b/src/kernel/task/idt.cpp
@@ -109,14 +109,6 @@ extern "C" void idt_irqHandler(registers regs) {
 	if (doSwitch) schedule();
 }
 
-/*	Called in idt_.asm on a system call (interrupt 64).
-	Calls the correct syscall handler (if any). */
-extern "C" void idt_syscallHandler(registers regs) {
-	if (regs.eax < NUMBER_OF_SYSCALLS && syscalls[regs.eax] != 0) {
-		syscalls[regs.eax](&regs);
-	}
-}
-
 /*	For internal use only. Sets up an entry of the IDT with given parameters. */
 static void idt_setGate(uint8_t num, uint32_t base, uint16_t sel, uint8_t flags) {
 	idt_entries[num].base_lo = base & 0xFFFF;
diff --git a/src/kernel/task/sched.cpp b/src/kernel/task/sched.cpp
index e773e97..2629a33 100644
--- a/src/kernel/task/sched.cpp
+++ b/src/kernel/task/sched.cpp
@@ -3,7 +3,7 @@
 #include <mem/mem.h>
 
 // Lower priority numbers have high priority. Priorities must start at 0.
-#define PRIORITIES 3		// we have 4 priority levels
+#define PRIORITIES 3		// we have 3 priority levels
 #define PRIORITY(t) (t->process->privilege)		//get priority for a thread
 
 extern thread *idle_thread;
diff --git a/src/kernel/task/syscall.cpp b/src/kernel/task/syscall.cpp
index 7a83c25..7938e76 100644
--- a/src/kernel/task/syscall.cpp
+++ b/src/kernel/task/syscall.cpp
@@ -6,16 +6,16 @@
 
 #define CALL0(name, scname) static void scname(registers* r) { r->eax = name(); }
 #define CALL1(name, scname) static void scname(registers* r) { \
-	r->eax = name(r->ebx); }
+	r->eax = name(r->ecx); }
 #define CALL2(name, scname) static void scname(registers* r) { \
-	r->eax = name(r->ebx, r->ecx); }
+	r->eax = name(r->ecx, r->edx); }
 #define CALL3(name, scname) static void scname(registers* r) { \
-	r->eax = name(r->ebx, r->ecx, r->edx); }
+	r->eax = name(r->ecx, r->edx, r->esi); }
 #define CALL0V(name, scname) static void scname(registers* r) { name(); }
-#define CALL1V(name, scname) static void scname(registers* r) { name(r->ebx); }
-#define CALL2V(name, scname) static void scname(registers* r) { name(r->ebx, r->ecx); }
-#define CALL3V(name, scname) static void scname(registers* r) { name(r->ebx, r->ecx, r->edx); }
-#define CALL4V(name, scname) static void scname(registers* r) { name(r->ebx, r->ecx, r->edx, r->esi); }
+#define CALL1V(name, scname) static void scname(registers* r) { name(r->ecx); }
+#define CALL2V(name, scname) static void scname(registers* r) { name(r->ecx, r->edx); }
+#define CALL3V(name, scname) static void scname(registers* r) { name(r->ecx, r->edx, r->esi); }
+#define CALL4V(name, scname) static void scname(registers* r) { name(r->ecx, r->edx, r->esi, r->edi); }
 
 CALL0V(thread_exit, thread_exit_sc);
 CALL0V(schedule, schedule_sc);
@@ -27,16 +27,17 @@ CALL1(process_sbrk, proc_sbrk_sc);
 CALL1V(process_brk, proc_brk_sc);
 
 static void printk_sc(registers *r) {
-	monitor_write((char*)r->ebx);
+	monitor_write((char*)r->ecx);
 }
 
 static void thread_new_sc(registers* r) {
 	cli();
-	new thread(current_thread->process, (thread_entry)r->ebx, (void*)r->ecx, (void*)r->edx);
+	new thread(current_thread->process, (thread_entry)r->ecx, (void*)r->edx, (void*)r->esi);
 	sti();
 }
 
-int_callback syscalls[NUMBER_OF_SYSCALLS] = {
+int_callback syscalls[NUMBER_OF_SYSCALLS] = {		// This must correspond to common/include/tce/syscalls.h
+	0,
 	thread_exit_sc,			//0
 	schedule_sc,
 	thread_sleep_sc,
@@ -48,3 +49,16 @@ int_callback syscalls[NUMBER_OF_SYSCALLS] = {
 	proc_sbrk_sc,
 	proc_brk_sc,
 	0 };
+
+
+/*	Called in idt_.asm on a system call (interrupt 64).
+	Calls the correct syscall handler (if any). */
+extern "C" void idt_syscallHandler(registers regs) {
+	if (regs.eax == 0) {
+		if (regs.ebx < NUMBER_OF_SYSCALLS && syscalls[regs.ebx] != 0) {
+			syscalls[regs.ebx](&regs);
+		}
+	} else {
+		monitor_write("Hello. Object calls not implemented.\n");
+	}
+}