more work on reading second copy from tape, some cleanup

c64/kernal/tape/tape_normal_get_data_2.s

@@ -9,13 +9,20 @@
 
 #if CONFIG_TAPE_NORMAL
 
+tape_normal_get_data_2:
+	
+	lda RIPRTY
+	cmp #$01
+	rts
+
+#elif DISABLED_DISABLED
 
 tape_normal_get_data_2:
 
 	// First check if there is a need to read anything
 
-	lda PTR1
-	beq tape_normal_get_data_2_checksum
+	// XXX lda PTR1
+	// XXX beq tape_normal_get_data_2_checksum
 
 	// Read sync of the block
 	
@@ -28,7 +35,32 @@ tape_normal_get_data_2:
 
 tape_normal_get_data_2_loop:
 
-	// XXX read missing bytes
+	// Read missing bytes
+
+	jsr tape_normal_get_byte
+	bcc tape_normal_get_data_2_loop_byte_OK
+
+	// Problem reading byte
+
+	jsr load_cmp_log_MEMUSS
+	bne tape_normal_get_data_2_loop_advance
+
+	sec
+	rts
+
+tape_normal_get_data_2_loop_byte_OK:
+
+	jsr load_cmp_log_MEMUSS
+	bne tape_normal_get_data_2_loop_advance
+
+	// This is a byte from the log
+
+	// XXX store correct byte
+
+
+tape_normal_get_data_2_loop_advance:
+
+	// XXX finish the implementation
 
 	sec
 	rts
@@ -48,4 +80,13 @@ tape_normal_get_data_2_done:
 	rts
 
 
+
+load_cmp_log_MEMUSS:
+
+	// XXX
+
+!:
+	rts
+
+
 #endif