Support for 4 disks on the command line. Support tyo trace track changes.

README.md

@@ -199,6 +199,10 @@ Only valid on SDL mode
         rom file for the disk drive controller (default "<internal>/DISK2.rom")
   -diskb string
         file to load on the second disk drive
+  -diskc string
+        file to load on the third disk drive, slot 5
+  -diskd string
+        file to load on the fourth disk drive, slot 5
   -fastChipSlot int
         slot for the FASTChip accelerator card, -1 for none (default 3)
   -forceCaps
@@ -259,6 +263,8 @@ Only valid on SDL mode
         dump to the console the sofswitches calls
   -traceSSReg
         dump to the console the sofswitch registrations
+  -traceTracks
+        dump to the console the disk tracks changes
   -vidHDSlot int
         slot for the VidHD card, only for //e models. -1 for none (default 2)
   -videxCardSlot int

apple2main.go

@@ -24,6 +24,14 @@ func MainApple() *Apple2 {
 		"diskb",
 		"",
 		"file to load on the second disk drive")
+	diskCImage := flag.String(
+		"diskc",
+		"",
+		"file to load on the third disk drive, slot 5")
+	diskDImage := flag.String(
+		"diskd",
+		"",
+		"file to load on the fourth disk drive, slot 5")
 	hardDiskImage := flag.String(
 		"hd",
 		"",
@@ -136,6 +144,10 @@ func MainApple() *Apple2 {
 		"traceSP",
 		false,
 		"dump to the console the smarport commands")
+	traceTracks := flag.Bool(
+		"traceTracks",
+		false,
+		"dump to the console the disk tracks changes")
 	model := flag.String(
 		"model",
 		"2enh",
@@ -267,11 +279,28 @@ func MainApple() *Apple2 {
 		a.AddSwyftCard()
 	}
 
+	var trackTracer trackTracer
+	if *traceTracks {
+		trackTracer = makeTrackTracerLogger()
+	}
+
 	if *smartPortImage != "" {
 		err := a.AddSmartPortDisk(5, *smartPortImage, *traceHD, *traceSP)
 		if err != nil {
 			panic(err)
 		}
+	} else if *diskCImage != "" || *diskDImage != "" {
+		if *sequencerDisk2 {
+			err := a.AddDisk2Sequencer(5, *diskCImage, *diskDImage, trackTracer)
+			if err != nil {
+				panic(err)
+			}
+		} else {
+			err := a.AddDisk2(5, *diskCImage, *diskDImage, trackTracer)
+			if err != nil {
+				panic(err)
+			}
+		}
 	}
 
 	if *fujinetSlot >= 0 {
@@ -283,12 +312,12 @@ func MainApple() *Apple2 {
 	}
 	if *disk2Slot > 0 {
 		if *sequencerDisk2 {
-			err := a.AddDisk2Sequencer(*disk2Slot, diskImageFinal, *diskBImage, nil)
+			err := a.AddDisk2Sequencer(*disk2Slot, diskImageFinal, *diskBImage, trackTracer)
 			if err != nil {
 				panic(err)
 			}
 		} else {
-			err := a.AddDisk2(*disk2Slot, diskImageFinal, *diskBImage, nil)
+			err := a.AddDisk2(*disk2Slot, diskImageFinal, *diskBImage, trackTracer)
 			if err != nil {
 				panic(err)
 			}

cardDisk2.go

@@ -94,20 +94,19 @@ func (c *CardDisk2) assign(a *Apple2, slot int) {
 			drive.trackStep = moveDriveStepper(drive.phases, drive.trackStep)
 
 			if c.trackTracer != nil {
-				c.trackTracer.traceTrack(drive.trackStep)
+				c.trackTracer.traceTrack(drive.trackStep, c.slot, c.selected)
 			}
 
 			return c.dataLatch // All even addresses return the last dataLatch
 		}, fmt.Sprintf("PHASE%vOFF", phase))
 
-		c.addCardSoftSwitchR((phase<<1)+1, func() uint8 {
+		c.addCardSoftSwitchR((phase<<1)+1, func() uint8 { // Update magnets and position
-			// Update magnets and position
 			drive := &c.drive[c.selected]
 			drive.phases |= (1 << phase)
 			drive.trackStep = moveDriveStepper(drive.phases, drive.trackStep)
 
 			if c.trackTracer != nil {
-				c.trackTracer.traceTrack(drive.trackStep)
+				c.trackTracer.traceTrack(drive.trackStep, slot, c.selected)
 			}
 
 			return 0

cardDisk2Sequencer.go

@@ -178,14 +178,14 @@ func (c *CardDisk2Sequencer) step(data uint8, firstStep bool) bool {
 		q1 := c.q[1]
 		q2 := c.q[2]
 		q3 := c.q[3]
-		c.drive[0].moveHead(q0, q1, q2, q3, c.trackTracer)
+		c.drive[0].moveHead(q0, q1, q2, q3, c.trackTracer, c.slot, 0)
-		c.drive[1].moveHead(q0, q1, q2, q3, c.trackTracer)
+		c.drive[1].moveHead(q0, q1, q2, q3, c.trackTracer, c.slot, 1)
 	}
 
 	/*
 		The reading from the drive is converted to a pulse detecting
 		changes using Q3 and Q4 of the flip flop, combined with
-		the last quarter of the 74LS132 NAND.
+		the last quarter of the 74LS132 NAND.∫
 		The woz format provides the pulse directly and we won't emulate
 		this detection.
 	*/

cardDisk2SequencerDrive.go

@@ -48,7 +48,7 @@ func (d *cardDisk2SequencerDrive) enable(enabled bool) {
 	d.enabled = enabled
 }
 
-func (d *cardDisk2SequencerDrive) moveHead(q0, q1, q2, q3 bool, trackTracer trackTracer) {
+func (d *cardDisk2SequencerDrive) moveHead(q0, q1, q2, q3 bool, trackTracer trackTracer, slot int, driveNumber int) {
 	if !d.enabled {
 		return
 	}
@@ -60,7 +60,7 @@ func (d *cardDisk2SequencerDrive) moveHead(q0, q1, q2, q3 bool, trackTracer trac
 	d.currentQuarterTrack = moveDriveStepper(phases, d.currentQuarterTrack)
 
 	if trackTracer != nil {
-		trackTracer.traceTrack(d.currentQuarterTrack)
+		trackTracer.traceTrack(d.currentQuarterTrack, slot, driveNumber)
 	}
 }
 

command.go

@@ -102,5 +102,5 @@ func (a *Apple2) changeDisk(unit int, path string) error {
 	if unit < len(a.removableMediaDrives) {
 		return a.removableMediaDrives[unit].insertDiskette(path)
 	}
-	return fmt.Errorf("Unit %v not defined", unit)
+	return fmt.Errorf("unit %v not defined", unit)
 }

trackTracer.go

@@ -1,9 +1,26 @@
 package izapple2
 
+import "fmt"
+
 type trackTracer interface {
-	traceTrack(quarterTrack int)
+	traceTrack(quarterTrack int, slot int, drive int)
 }
 
+// ///////////////
+// TrackTracerLogger is a track tracer that logs to the console
+type trackTracerLogger struct {
+}
+
+func makeTrackTracerLogger() *trackTracerLogger {
+	return &trackTracerLogger{}
+}
+
+func (tt *trackTracerLogger) traceTrack(quarterTrack int, slot int, drive int) {
+	fmt.Printf("Slot %v, drive %v, track %v\n", slot, drive, quarterTrack)
+}
+
+// ///////////////
+// TrackTracerSummary is a track tracer that stores the track changes
 type trackTracerSummary struct {
 	quarterTracks []int
 }
@@ -14,7 +31,7 @@ func makeTrackTracerSummary() *trackTracerSummary {
 	return &tt
 }
 
-func (tt *trackTracerSummary) traceTrack(quarterTrack int) {
+func (tt *trackTracerSummary) traceTrack(quarterTrack int, _slot int, _drive int) {
 	if tt == nil {
 		return
 	}