B-ASIC - Revision history

Fgbrain at 17:15, 21 April 2018

2018-04-21T17:15:22Z

Bryce at 13:21, 7 December 2010

2010-12-07T13:21:33Z

Longshot: Instructions for 3.4

2007-06-19T07:57:28Z

Instructions for 3.4

Show changes

Octoate: Added new category

2007-03-11T21:45:00Z

Added new category

82.228.218.6: /* Sprites Instructions Set */

2006-10-05T17:20:07Z

‎Sprites Instructions Set

82.228.218.6: /* Sprites Instructions Set */

2006-10-05T17:19:46Z

‎Sprites Instructions Set

Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /mnt/cpcwiki-httpdocs/includes/diff/DairikiDiff.php on line 434

82.228.218.6: /* Sprites Instructions Set */

2006-10-05T17:18:56Z

‎Sprites Instructions Set

Longshot at 19:48, 27 September 2006

2006-09-27T19:48:47Z

Longshot at 07:46, 27 September 2006

2006-09-27T07:46:47Z

Prodatron: headline format

2006-09-26T17:30:55Z

headline format

← Older revision		Revision as of 17:15, 21 April 2018
Line 18:		Line 18:

	A set of new powerful instructions will come in future versions.		A set of new powerful instructions will come in future versions.
		+
		+
		+
		+	== Games developed using B-ASIC ==
		+
		+	* [[Call &BD10'n'oeuf]]
		+

	== Historics ==		== Historics ==

@@ Line 336: / Line 336: @@
 == Links ==
-[http://logon.system.free.fr/html/lienscpc.htm Download B-Asic]
+[http://logon.system.free.fr/html/downloadlogon.htm Download B-Asic]
 [[Category:Programming software]]
 [[Category:CPC Plus]]

← Older revision		Revision as of 21:45, 11 March 2007
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	[[Category:Programming software]]		[[Category:Programming software]]
		+	[[Category:CPC Plus]]

@@ Line 100: / Line 100: @@
 * DurationPer indicates the time while the sprite will run on the path (at the last position the path start again at the fist position).
 * If DurationPer is zeroed, so the duration is infinite.
-* WaitingPer indicate the start period which occurs when the path will be activated (see SPRTON and SPRTOFF instructions)
+* WaitingPer indicate the start period which occurs when the path will be activated (see SPRTON and SPRTOFF instructions). Note : A same path can be used by one or more sprites. Example : SPRTDEF,3,&3000,0,100 to define for sprite 3 a path defined in &3000 with an infinite loop of the path after 2 seconds of start delay after SPRTON,3 instruction.
 Note : A same path can be used by one or more sprites.
 Example : SPRTDEF,3,&3000,0,100 to define for sprite 3 a path defined in &3000 with an infinite loop of the path after 2 seconds of start delay after SPRTON,3 instruction.
 ----
 '''SPRTON,SprNb1,SprNb2,...,SprNbx'''

@@ Line 98: / Line 98: @@
 * The coordinate must be stored on a little endian method, e.g. the less significant byte in first and the most significant byte in second position in memory.
 * The last x coordinate must take the value F0F0 (hexa) to indicate the path end definition
-* DurationPer indicates the time while the sprite will run on the path (at the last position
+* DurationPer indicates the time while the sprite will run on the path (at the last position the path start again at the fist position).
-* the path start again at the fist position).
 * If DurationPer is zeroed, so the duration is infinite.
-* WaitingPer indicate the start period which occurs when the path will be activated
+* WaitingPer indicate the start period which occurs when the path will be activated (see SPRTON and SPRTOFF instructions)
-* (see SPRTON and SPRTOFF instructions)
+Note : A same path can be used by one or more sprites.
-* Note : A same path can be used by one or more sprites.
+Example : SPRTDEF,3,&3000,0,100 to define for sprite 3 a path defined in &3000 with an infinite loop of the path after 2 seconds of start delay after SPRTON,3 instruction.
-* Example : SPRTDEF,3,&3000,0,100 to define for sprite 3 a path defined in &3000 with an infinite
-* loop of the path after 2 seconds of start delay after SPRTON,3 instruction.
 ----
 '''SPRTON,SprNb1,SprNb2,...,SprNbx'''

@@ Line 96: / Line 96: @@
 * The path is defined by screen positions, given by a set of x,y coordinates defined in memory.
 * Each coordinate is defined on 2 bytes (4 bytes for a screen position) in the memory
-* The coordinate must be stored on a little endian method, e.g. the less significant byte
+* The coordinate must be stored on a little endian method, e.g. the less significant byte in first and the most significant byte in second position in memory.
-* in first and the most significant byte in second position in memory.
 * The last x coordinate must take the value F0F0 (hexa) to indicate the path end definition
 * DurationPer indicates the time while the sprite will run on the path (at the last position
@@ Line 248: / Line 247: @@
 * Example : 10 VARX%=0: VARY%=0 : SPRWHERE,1,@VARX%,@VARY%: PRINT VARX%,VARY%
 ----
 === Others Instructions Set ===
 ----

@@ Line 3: / Line 3: @@
 == Introduction ==
 '''B-ASIC''' is a set of RSX instructions to manage the extra features of the '''CPC PLUS'''
 Since release 3.0 B-ASIC runs only on CPC range with 128 Kb memory
 Main instructions can manage colour and sprites, providing an extra bank of '''64 sprites''' for a total of '''80 sprites'''
 '''B-ASIC doesn't take any byte of the CPC Basic memory'''.
 The RSX definition and code for locomative basic are not declared in main memory
 By the way, the whole interruption system and RSX managment is modified when B-Asic start.
 From a technical point of view, the code of the program BASIC using B-ASIC is copied in a bank, because
-one bank is always open for the system to store the BASIC code. By the way, there are two video page available
+one bank is always open for the system to store the BASIC code.
 for the user.
 Some instructions are not explained because they will disappear from next version.
@@ Line 20: / Line 25: @@
 == Historics ==
 * V3.1 xx/xx/1993 B-ASIC doesn't use any byte of BASIC main memory
-* V3.2 25/02/2006 Bug fix on table calculation for path in interrupt | Correct a firmware bug (ei before real interrupt handler end)
+* V3.2 25/02/2006 Bug fix on table calculation for path in interrupt / Correct a firmware bug (ei before real interrupt handler end)
-* V3.3 27/02/2006 Forgotten to copy BASIC code from bank 2 to 5 | New instruction : SPRWHERE
+* V3.3 27/02/2006 Forgotten to copy BASIC code from bank 2 to 5 / New instruction : SPRWHERE
 == Instructions ==
@@ Line 291: / Line 296: @@
 * Instruction SPRUNLINK is used with sprites not linked.
 [[Category:Programming software]]

← Older revision		Revision as of 07:46, 27 September 2006
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−	[[Category:Programming]]	+	[[Category:Programming software]]

@@ Line 1: / Line 1: @@
 '''B-Asic''' is a set of RSX commands allowing to use the Amstrad CPC Plus features from [[BASIC]]. It was written by [[Longshot]] of [[Logon System]].
-= INTRODUCTION =
+== Introduction ==
 '''B-ASIC''' is a set of RSX instructions to manage the extra features of the '''CPC PLUS'''
 Since release 3.0 B-ASIC runs only on CPC range with 128 Kb memory
@@ Line 18: / Line 18: @@
 A set of new powerful instructions will come in future versions.
-= HISTORICS =
+== Historics ==
 * V3.1 xx/xx/1993 B-ASIC doesn't use any byte of BASIC main memory
 * V3.2 25/02/2006 Bug fix on table calculation for path in interrupt | Correct a firmware bug (ei before real interrupt handler end)
 * V3.3 27/02/2006 Forgotten to copy BASIC code from bank 2 to 5 | New instruction : SPRWHERE
-= INSTRUCTIONS =
+== Instructions ==
 ----
-== COLOURS INSTRUCTIONS SET ==
+=== Colours Instructions Set ===
 ----
 '''INKF,pen,colour'''
@@ Line 59: / Line 59: @@
 * Example : FOR I=0 TO 15:INKFRVB,0,I,0,0:NEXT I
 ----
-== SPRITES INSTRUCTIONS SET ==
+=== Sprites Instructions Set ===
 ----
 '''SPROFF,SpriteNumber'''
@@ Line 243: / Line 243: @@
 * Example : 10 VARX%=0: VARY%=0 : SPRWHERE,1,@VARX%,@VARY%: PRINT VARX%,VARY%
 ----
-== OTHERS INSTRUCTIONS SET ==
+=== Others Instructions Set ===
 ----
 '''POKEASIC,Address,val1,...,valx'''
@@ Line 256: / Line 256: @@
 ----
-= ERROR MESSAGES =
+== Error Messages ==
 '''Bad arguments number'''
 * Bad number of arguments used in the instruction