From: cuz <cuz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Mon, 10 Feb 2003 23:01:13 +0000 (+0000)
Subject: Renamed _em_deinstall -> _em_uninstall, emd_deinstall -> emd_uninstall.
X-Git-Tag: V2.12.0~1726
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=ca71d94e00ba5ee6070009895f436e27b738502e;p=cc65

Renamed _em_deinstall -> _em_uninstall, emd_deinstall -> emd_uninstall.
Make _em_install and _em_uninstall user callable.


git-svn-id: svn://svn.cc65.org/cc65/trunk@1962 b7a2c559-68d2-44c3-8de9-860c34a00d81
---

diff --git a/libsrc/em/em-kernel.s b/libsrc/em/em-kernel.s
index 473cbb55c..bf4455e4b 100644
--- a/libsrc/em/em-kernel.s
+++ b/libsrc/em/em-kernel.s
@@ -4,8 +4,7 @@
 ; Common functions of the extended memory API.
 ;
 
-        .export         _em_install, _em_deinstall
-
+        .export         em_clear_ptr
         .import         return0
         .importzp       ptr1
 
@@ -24,7 +23,7 @@ _em_drv:        .res    2      		; Pointer to driver
 .data
 emd_vectors:
 emd_install:   	jmp     return0
-emd_deinstall: 	jmp     return0
+emd_uninstall: 	jmp     return0
 emd_pagecount:  jmp     return0
 emd_map:        jmp     return0
 emd_use:        jmp     return0
@@ -86,23 +85,19 @@ set:    sta     emd_vectors,x
         rts
 
 ;----------------------------------------------------------------------------
-; void __fastcall__ em_deinstall (void);
-; /* Deinstall the driver before unloading it */
-
-_em_deinstall:
-        jsr     emd_deinstall           ; Call driver routine
+; unsigned char __fastcall__ em_uninstall (void);
+; /* Uninstall the currently loaded driver and return an error code.
+;  * Note: This call does not free allocated memory.
+;  */
 
-; Point all jump vectors to return0
+_em_uninstall:
+        jsr     emd_uninstall           ; Call driver routine
 
-        ldx     #0
-@L1:    inx                             ; Skip JMP opcode
-        lda     #<return0
-        jsr     set
-        lda     #>return0
-        jsr     set
-        cpx     #(EMD_HDR_JUMPCOUNT*3)
-        bne     @L1
-
-        rts
+em_clear_ptr:                           ; External entry point
+        lda     #0
+        sta     _em_drv
+        sta     _em_drv+1               ; Clear the driver pointer
 
+        tax
+        rts                             ; Return zero
 
diff --git a/libsrc/em/em_load.c b/libsrc/em/em_load.c
index ff9a234a9..b3610bb32 100644
--- a/libsrc/em/em_load.c
+++ b/libsrc/em/em_load.c
@@ -6,10 +6,10 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 2002      Ullrich von Bassewitz                                       */
-/*               Wacholderweg 14                                             */
-/*               D-70597 Stuttgart                                           */
-/* EMail:        uz@musoftware.de                                            */
+/* (C) 2002-2003 Ullrich von Bassewitz                                       */
+/*               Römerstrasse 52                                             */
+/*               D-70794 Filderstadt                                         */
+/* EMail:        uz@cc65.org                                                 */
 /*                                                                           */
 /*                                                                           */
 /* This software is provided 'as-is', without any expressed or implied       */
@@ -51,7 +51,7 @@ unsigned char __fastcall__ em_load_driver (const char* name)
 
     /* Check if we do already have a driver loaded. If so, remove it. */
     if (em_drv != 0) {
-        em_deinstall ();
+        em_uninstall ();
     }
 
     /* Now open the file */
diff --git a/libsrc/em/em_unload.s b/libsrc/em/em_unload.s
index 8c47ef061..d5ce35e9e 100644
--- a/libsrc/em/em_unload.s
+++ b/libsrc/em/em_unload.s
@@ -5,6 +5,8 @@
 ; /* Unload the currently loaded driver. */
 
 
+        .import         em_clear_ptr
+
         .include        "em-kernel.inc"
         .include        "em-error.inc"
         .include        "modload.inc"
@@ -14,18 +16,13 @@ _em_unload:
 	ora	_em_drv+1
        	beq    	no_driver		; No driver
 
-	jsr	_em_deinstall		; Deinstall the driver
+	jsr	emd_uninstall		; Deinstall the driver
 
         lda     _em_drv
         ldx     _em_drv+1
         jsr     _mod_free               ; Free the driver
 
-        lda     #0
-        sta     _em_drv
-        sta     _em_drv+1               ; Clear the driver pointer
-
-        tax
-        rts                             ; Return zero
+        jmp     em_clear_ptr            ; Clear the driver pointer, return zero
 
 no_driver:
 	tax				; X = 0