Proposals for krnio additions: setbnk and save

include/c64/kernalio.c

@@ -2,6 +2,20 @@
 
 krnioerr krnio_pstatus[16];
 
+#if defined(__C128__) || defined(__C128B__) || defined(__C128E__)
+void krnio_setbnk(char filebank, char namebank)
+{
+	__asm
+	{
+		lda filebank
+		ldx namebank
+		jsr $ff68			// setbnk
+	}
+}
+
+#pragma native(krnio_setbnk)
+#endif
+
 void krnio_setnam(const char * name)
 {
 	__asm
@@ -122,6 +136,42 @@ bool krnio_load(char fnum, char device, char channel)
 
 #pragma native(krnio_load)
 
+bool krnio_save(char device, const char* start, const char* end)
+{
+	__asm
+	{
+		lda	start
+		sta accu
+		lda start + 1
+		sta	accu + 1
+
+		lda	#0
+		ldx	device
+		ldy #0		
+		jsr	$ffba			// setlfs
+		
+		lda #accu
+		ldx end
+		ldy end+1
+		jsr	$FFD8			// save
+
+		lda	#0
+		sta accu
+		sta	accu + 1
+
+		bcc	W1
+
+		lda #0
+		jmp	E2
+	W1:
+		lda	#1
+		sta	accu
+	E2:
+	}
+}
+
+#pragma native(krnio_load)
+
 bool krnio_chkout(char fnum)
 {
 	__asm

include/c64/kernalio.h

@@ -18,6 +18,11 @@ enum krnioerr
 
 extern krnioerr krnio_pstatus[16];
 
+#if defined(__C128__) || defined(__C128B__) || defined(__C128E__)
+// C128: Set bank for load/save and filename for next file operations
+void krnio_setbnk(char filebank, char namebank);
+#endif
+
 // Set filename for next krnio_open operation, make sure
 // that the string is still valid when calling krnio_open
 
@@ -39,6 +44,8 @@ krnioerr krnio_status(void);
 
 bool krnio_load(char fnum, char device, char channel);
 
+bool krnio_save(char device, const char* start, const char* end);
+
 // select the given file for stream output
 
 bool krnio_chkout(char fnum);