IEC code cleanup, saved few bytes

c64/kernal/iec/ciout.s

@@ -32,13 +32,13 @@ ciout_store_in_buffer:
 	
 ciout_send_byte:
 
-	clc // don't send with EOI
-#if CONFIG_IEC_JIFFYDOS || CONFIG_IEC_DOLPHINDOS
+	clc                                // send without EOI
+#if CONFIG_IEC_JIFFYDOS
 	jsr iec_tx_dispatch
-#else // no turbo supported
+#else
 	jsr iec_tx_byte
 #endif
-	inc C3PO // iec_tx_byte sets it to 0, but we still have something to send
+	inc C3PO                           // tx byte routine sets to 0, but we still have something to send
 	jmp ciout_store_in_buffer
 
 #else

c64/kernal/iec/iec_rx_byte.s

@@ -8,6 +8,19 @@
 #if CONFIG_IEC
 
 
+#if CONFIG_IEC_JIFFYDOS
+
+iec_rx_dispatch:
+
+	lda IECPROTO
+	cmp #$01
+	beq_far jiffydos_rx_byte
+
+	// FALLTROUGH
+
+#endif // CONFIG_IEC_JIFFYDOS
+
+
 iec_rx_byte:
 
 	// Store .X and .Y on the stack - preserve them

c64/kernal/iec/iec_send_file_name.s

@@ -30,9 +30,9 @@ iec_send_file_name_loop:
 !:
 	// Transmit one character
 	sta TBTCNT
-#if CONFIG_IEC_JIFFYDOS || CONFIG_IEC_DOLPHINDOS
+#if CONFIG_IEC_JIFFYDOS
 	jsr iec_tx_dispatch
-#else // no turbo supported
+#else
 	jsr iec_tx_byte
 #endif
 	jmp iec_send_file_name_loop

c64/kernal/iec/iec_tx_byte.s

@@ -9,6 +9,26 @@
 
 #if CONFIG_IEC
 
+
+#if CONFIG_IEC_JIFFYDOS
+
+iec_tx_dispatch:
+
+	php                                // preserve C flag for EOI indication
+	lda IECPROTO
+	cmp #$01
+	bne !+
+
+	plp
+	jmp jiffydos_tx_byte
+!:
+	plp
+	
+	// FALLTROUGH
+
+#endif // CONFIG_IEC_JIFFYDOS
+
+
 iec_tx_byte:
 
 	// Store .X and .Y on the stack - preserve them

c64/kernal/iec/load_iec.s

@@ -103,12 +103,12 @@ load_iec:
 
 #if CONFIG_IEC_JIFFYDOS
 	cmp #$01
-	beq_far load_jiffydos              // branch if JiffyDOS
+	beq_far jiffydos_load              // branch if JiffyDOS
 #endif
 
 #if CONFIG_IEC_DOLPHINDOS
 	cmp #$02
-	beq_far load_dolphindos            // branch if DolphinDOS
+	beq_far dolphindos_load            // branch if DolphinDOS
 #endif
 
 #endif