diff --git a/doc/sim65.sgml b/doc/sim65.sgml
index 075f6cbe2..8a7329b0b 100644
--- a/doc/sim65.sgml
+++ b/doc/sim65.sgml
@@ -166,14 +166,9 @@ Other internal details:
 Aside from the loaded binary, the reset vector at <tt/$FFFC/ will be
 pre-loaded with the given <bf/reset address/.
 
-<item>The <tt/exit/ address is <tt/$FFF1/.
+<item>The <tt/exit/ address is <tt/$FFF9/.
 Jumping to this address will terminate execution with the A register value as an exit code.
 
-<item>The built-in functions are provided by 6 paravirtualization hooks present at
-<tt/$FFF0-$FFF5/. Except for <tt/exit/, a <tt/JSR/ to one of these
-addresses will return immediately after performing a special function.
-These use cc65 calling conventions, and are intended for use with the sim65 target C library.
-
 <item><tt/IRQ/ and <tt/NMI/ events will not be generated, though <tt/BRK/
 can be used if the IRQ vector at <tt/$FFFE/ is manually prepared by the test code.
 
diff --git a/libsrc/sim6502/paravirt.s b/libsrc/sim6502/paravirt.s
index 81b655c73..0d8e528b1 100644
--- a/libsrc/sim6502/paravirt.s
+++ b/libsrc/sim6502/paravirt.s
@@ -7,11 +7,11 @@
 ; int __fastcall__ write (int fd, const void* buf, unsigned count);
 ;
 
-        .export         args, exit, _open, _close, _read, _write
+        .export         exit, args, _open, _close, _read, _write
 
-args            := $FFF0
-exit            := $FFF1
-_open           := $FFF2
-_close          := $FFF3
-_read           := $FFF4
-_write          := $FFF5
+_open           := $FFF4
+_close          := $FFF5
+_read           := $FFF6
+_write          := $FFF7
+args            := $FFF8
+exit            := $FFF9
diff --git a/src/sim65/paravirt.c b/src/sim65/paravirt.c
index 5abae9091..c9f6e61b0 100644
--- a/src/sim65/paravirt.c
+++ b/src/sim65/paravirt.c
@@ -120,6 +120,18 @@ static unsigned PopParam (unsigned char Incr)
 
 
 
+static void PVExit (CPURegs* Regs)
+{
+    Print (stderr, 1, "PVExit ($%02X)\n", Regs->AC);
+    if (PrintCycles) {
+        Print (stdout, 0, "%lu cycles\n", GetCycles ());
+    }
+
+    exit (Regs->AC);
+}
+
+
+
 static void PVArgs (CPURegs* Regs)
 {
     unsigned ArgC = ArgCount - ArgStart;
@@ -152,18 +164,6 @@ static void PVArgs (CPURegs* Regs)
 
 
 
-static void PVExit (CPURegs* Regs)
-{
-    Print (stderr, 1, "PVExit ($%02X)\n", Regs->AC);
-    if (PrintCycles) {
-        Print (stdout, 0, "%lu cycles\n", GetCycles ());
-    }
-
-    exit (Regs->AC);
-}
-
-
-
 static void PVOpen (CPURegs* Regs)
 {
     char Path[1024];
@@ -295,12 +295,12 @@ static void PVWrite (CPURegs* Regs)
 
 
 static const PVFunc Hooks[] = {
-    PVArgs,
-    PVExit,
     PVOpen,
     PVClose,
     PVRead,
     PVWrite,
+    PVArgs,
+    PVExit,
 };
 
 
@@ -318,13 +318,13 @@ void ParaVirtHooks (CPURegs* Regs)
 /* Potentially execute paravirtualization hooks */
 {
     /* Check for paravirtualization address range */
-    if (Regs->PC <  0xFFF0 ||
-        Regs->PC >= 0xFFF0 + sizeof (Hooks) / sizeof (Hooks[0])) {
+    if (Regs->PC <  0xFFF4 ||
+        Regs->PC >= 0xFFF4 + sizeof (Hooks) / sizeof (Hooks[0])) {
         return;
     }
 
     /* Call paravirtualization hook */
-    Hooks[Regs->PC - 0xFFF0] (Regs);
+    Hooks[Regs->PC - 0xFFF4] (Regs);
 
     /* Simulate RTS */
     Regs->PC = Pop(Regs) + (Pop(Regs) << 8) + 1;