Format:TAP tape image file format - Revision history

Ygdrazil at 08:55, 1 September 2014

2014-09-01T08:55:21Z

Ygdrazil at 08:54, 1 September 2014

2014-09-01T08:54:59Z

Antoniovillena: /* Tape-Image (.TAP) file format */

2011-05-01T05:29:53Z

‎Tape-Image (.TAP) file format

Antoniovillena at 14:46, 28 April 2011

2011-04-28T14:46:15Z

Antoniovillena at 14:43, 28 April 2011

2011-04-28T14:43:03Z

Antoniovillena at 14:39, 28 April 2011

2011-04-28T14:39:38Z

Antoniovillena at 14:36, 28 April 2011

2011-04-28T14:36:53Z

Antoniovillena at 14:35, 28 April 2011

2011-04-28T14:35:27Z

Antoniovillena at 14:34, 28 April 2011

2011-04-28T14:34:07Z

Antoniovillena at 14:33, 28 April 2011

2011-04-28T14:33:08Z

← Older revision		Revision as of 08:55, 1 September 2014
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−	[[Category:~~Definition~~]]	+	[[Category:Definitions]]

← Older revision		Revision as of 08:54, 1 September 2014
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	Exit Point 2872 29E2 29E2		Exit Point 2872 29E2 29E2
		+
		+	[[Category:Definition]]

@@ Line 38: / Line 38: @@
   Byte Size  Name           Description
-   16  Filename       Padded to 16 bytes with nulls
+   16  Filename       Name of the file, padded with nulls
-    1  Block number   Filename (padded with blanks)
+    1  Block number   The first block is 1, numbers are consecutive
     1  Last block     A non-zero value means that this is the last block of a file
     1  File type      A value recording  the type of the file (see below)
@@ Line 56: / Line 56: @@
 = ASCII
 ..7 are unallocated
   Bits 4..7  Version        ASCII files should be version 1, all other files, version 0
 = Trapping the ROM routine  =

@@ Line 6: / Line 6: @@
 D 00 2C 50 68 61 6E 74 6F 6D 61 73 32 20 20 20 20 20 20 01 FF 02 58 00 00 AD FF
-  ^^^^^...... first block is 29 bytes (28 bytes+flag)
+   ^^^^^...... first block is 29 bytes (28 bytes+flag)
-        ^^... flag byte (A reg, 2C for headers, 16 for data blocks)
+         ^^... flag byte (A reg, 2C for headers, 16 for data blocks)
   file name .^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   block number ..............................................^^
@@ Line 19: / Line 19: @@
 00 10 AD 59 00 16 06 12 0A 00 2A 02 18 06 1E 07 30 0C 00 0D ..
   ^^^^^............... logical length, in consecutive blocks (88 bytes)
-      ^^^^^......... execution address for machine code programs (0xAD10)
+       ^^^^^......... execution address for machine code programs (0xAD10)
-            ^^^^^... second block is 89 bytes (88 bytes+flag)
+             ^^^^^... second block is 89 bytes (88 bytes+flag)
   flag byte ........^^
   second block data ...^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ Line 39: / Line 39: @@
    16  Filename       Padded to 16 bytes with nulls
     1  Block number   Filename (padded with blanks)
     1  Last block     A non-zero value means that this is the last block of a file
     1  File type      A value recording  the type of the file (see below)
     2  Data length    The number of data bytes in the data record
     2  Data location  Where the data was written from originally
     1  First block    A non-zero value means that this is the first block of a file
     2  Logical length This is the total length of the file in bytes
     2  Entry address  The execution address for machine code programs
 The file type (byte 18) is split into a number of fields:
@@ Line 52: / Line 52: @@
   Bit 0      Protection     If this bit is set the file is protected in some way
   Bits 1..3  File contents  0 = Internal BASIC
 = Binary
 = Screen image
 = ASCII
 ..7 are unallocated
   Bits 4..7  Version        ASCII files should be version 1, all other files, version 0

@@ Line 5: / Line 5: @@
 The .TAP files contain blocks of tape-saved data. All blocks start with two bytes specifying how many bytes will follow (not counting the two length bytes). Then raw tape data follows, starting with the flag byte. Unlike speccy format, the checksum bytes are not included, so you don't need calculate the crc-ccitt every 256 bytes, or padding the last page with zeroes, or ending with four 0xff bytes trailer.
 D 00 2C 50 68 61 6E 74 6F 6D 61 73 32 20 20 20 20 20 20 01 FF 02 58 00 00 AD FF
-−
    ^^^^^...... first block is 29 bytes (28 bytes+flag)
          ^^... flag byte (A reg, 2C for headers, 16 for data blocks)
@@ Line 19: / Line 18: @@
 00 10 AD 59 00 16 06 12 0A 00 2A 02 18 06 1E 07 30 0C 00 0D ..
   ^^^^^............... logical length, in consecutive blocks (88 bytes)
-       ^^^^^......... execution address for machine code programs (0xAD10)
+      ^^^^^......... execution address for machine code programs (0xAD10)
-             ^^^^^... second block is 89 bytes (88 bytes+flag)
+            ^^^^^... second block is 89 bytes (88 bytes+flag)
   flag byte ........^^
   second block data ...^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ Line 41: / Line 39: @@
    16  Filename       Padded to 16 bytes with nulls
     1  Block number   Filename (padded with blanks)
     1  Last block     A non-zero value means that this is the last block of a file
     1  File type      A value recording  the type of the file (see below)
     2  Data length    The number of data bytes in the data record
     2  Data location  Where the data was written from originally
     1  First block    A non-zero value means that this is the first block of a file
     2  Logical length This is the total length of the file in bytes
     2  Entry address  The execution address for machine code programs
 The file type (byte 18) is split into a number of fields:
@@ Line 54: / Line 52: @@
   Bit 0      Protection     If this bit is set the file is protected in some way
   Bits 1..3  File contents  0 = Internal BASIC
 = Binary
 = Screen image
 = ASCII
 ..7 are unallocated
   Bits 4..7  Version        ASCII files should be version 1, all other files, version 0