; /* Unload the currently loaded driver. */
- .import ser_clear_ptr
-
.include "ser-kernel.inc"
.include "ser-error.inc"
.include "modload.inc"
+ .import ser_clear_ptr
+ .import return0
+
+
_ser_unload:
lda _ser_drv
+ pha ; Save pointer to driver
ora _ser_drv+1
beq no_driver ; No driver
-
- lda _ser_drv
- pha
lda _ser_drv+1
- pha ; Save pointer to driver
+ pha
+
+ jsr _ser_uninstall ; Uninstall the driver
- jsr _ser_uninstall ; Deinstall the driver
-
pla
- tax
+ tax
pla ; Get pointer to driver
- jmp _mod_free ; Free the driver
+ jsr _mod_free ; Free the driver
+ jmp return0 ; Return SER_ERR_OK
no_driver:
tax ; X = 0
+ pla ; Remove pushed junk
lda #<SER_ERR_NO_DRIVER
rts