more sane directory name, updated binaries

src/kernal/tape/tape_normal_get_pilot.s

@@ -0,0 +1,93 @@
+// #LAYOUT# STD *        #TAKE
+// #LAYOUT# M65 KERNAL_1 #TAKE
+// #LAYOUT# *   *        #IGNORE
+
+//
+// Tape (turbo) helper routine - handling the pilot
+//
+
+// Injest the pilot - series of short pulses. According to http://sidpreservation.6581.org/tape-format/
+// it consist of the following number of pulses:
+// - $6A00 for header
+// - $1A00 for data and seq block header
+// - $4F for repeated header/data
+
+
+#if CONFIG_TAPE_NORMAL
+
+
+tape_normal_get_pilot_header:          // entry point, reset calibration, require 128x $40 pulses
+
+	// Reading the pilot header is the first action performed,
+	// thus start by setting default thresholds
+
+	lda #$91
+	sta __pulse_threshold
+	lda #$67
+	sta __pulse_threshold_ML
+
+	lda #$80
+	skip_2_bytes_trash_nvz
+
+	// FALLTROUGH
+
+tape_normal_get_pilot_data:            // entry point, require 4x $40 pulses
+
+	lda #$04
+	skip_2_bytes_trash_nvz
+
+	// FALLTROUGH
+
+tape_normal_get_pilot_short:           // entry point, require 1x $40 pulses
+
+	lda #$01
+
+	// FALLTROUGH
+
+tape_normal_get_pilot_common:
+
+	sta FSBLK
+
+	lda #$0B
+	sta VIC_EXTCOL
+
+	// FALLTROUGH
+
+tape_normal_get_pilot_common_restart:
+
+	lda FSBLK
+	sta ROPRTY
+
+	// FALLTROUGH
+
+tape_normal_get_pilot_common_loop_outer:
+
+	ldy #$40
+
+	// FALLTROUGH
+
+tape_normal_get_pilot_common_loop_inner:
+
+	jsr tape_common_get_pulse
+	bcc tape_normal_get_pilot_common_restart     // not a pilot - try again
+
+#if CONFIG_TAPE_AUTODETECT
+	// Try to distinguish turbo by cheecking for short signals
+	cmp #$B9                                     // see comment in tape_common_autodetect.s
+	bcs !+
+#endif
+
+	jsr tape_normal_calibrate_during_pilot
+
+	dey
+	bne tape_normal_get_pilot_common_loop_inner
+
+	dec ROPRTY
+	bne tape_normal_get_pilot_common_loop_outer
+
+	clc
+!:
+	rts
+
+
+#endif