Syscall args

include/kernel/ke/syscall.h

@@ -35,7 +35,8 @@ extern error_t KeSyscall(ulong code);
 
 extern void KeJumpToUserspace(ulong args, void *entryPoint, void *stackAddr);
 
-error_t _KeSyscallHandler(ulong code, ISRFrame_t *regs);
+error_t _KeSyscallHandler(  ulong code, void *arg0, void *arg1, void *arg2, 
+                            ISRFrame_t *regs );
 
 //----------------------------------------------------------------------------//
 

kaleid/kernel/ke/isr.asm

@@ -68,7 +68,7 @@ isrPreHandler:
     add rsp, 48
     ; pop registers
     popAll
-    ; pop the error code and interrupt id
+    ; pop the error code, interrupt id + crx
     add rsp, 16
 
     iretq

kaleid/kernel/ke/syscall.asm

@@ -41,13 +41,13 @@ syscallPreHandler:
     push r13
     push r12
     push r11
-    push 0
+    push 0      ; r10
     push r9
     push r8
     push rbp
-    push 0
-    push 0
-    push 0
+    push 0      ; rdi
+    push 0      ; rsi
+    push 0      ; rdx
     push rcx
     push rbx
     push rax
@@ -76,21 +76,21 @@ syscallPreHandler:
     add rsp, 48
     ; pop registers except return value
     pop rbx
-    pop rbx ; 2x rbx to discard rax
+    pop rbx     ; 2x rbx to discard old rax
     pop rcx
-    pop rdx
-    pop rsi
-    pop rdi
+    pop rdx     ; 0
+    pop rsi     ; 0
+    pop rdi     ; 0
     pop rbp
     pop r8
     pop r9
-    pop r10
+    pop r10     ; 0
     pop r11
     pop r12
     pop r13
     pop r14
     pop r15
-    ; pop the error code and interrupt id
+    ; pop the error code, interrupt id + crx
     add rsp, 16
     
     iretq

kaleid/kernel/ke/syscall.c

@@ -27,7 +27,8 @@
 #include <ke/idt.h>
 #include <io/vga.h>
 
-error_t _KeSyscallHandler(ulong code, ISRFrame_t *regs)
+error_t _KeSyscallHandler(  ulong code, void *arg0, void *arg1, void *arg2, 
+                            ISRFrame_t *regs )
 {
     DebugLog("Got a system call code %ld from cs %#x\n", code, regs->cs);