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cc65/libsrc/tgi/tgi_unload.s

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;
; Ullrich von Bassewitz, 21.06.2002
;
; void tgi_unload (void);
; /* Unload the currently loaded driver. */
.include "tgi-kernel.inc"
.include "tgi-error.inc"
.include "modload.inc"
_tgi_unload:
lda _tgi_drv
ora _tgi_drv
beq no_driver ; No driver
lda _tgi_drv
pha
lda _tgi_drv+1
pha ; Save pointer to driver
jsr _tgi_uninstall ; Uninstall the driver
pla
tax
pla
jmp _mod_free ; Free the driver
no_driver:
lda #<TGI_ERR_NO_DRIVER
sta _tgi_error
rts