Programming:Convert CPC sprites to Plus hardware sprites - Revision history

Fgbrain: /* Source code */

2013-05-15T06:49:15Z

Source code

← Older revision		Revision as of 06:49, 15 May 2013
Line 32:		Line 32:
	The source code for the converter (which will assemble in [[WinApe]] and [[Maxam]]) is as follows:		The source code for the converter (which will assemble in [[WinApe]] and [[Maxam]]) is as follows:

			<pre>
	<geshi lang=Z80>		<geshi lang=Z80>
	;Convert CPC sprite to Plus sprite		;Convert CPC sprite to Plus sprite
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	spraddr: dw &9000 ;address Plus sprite is stored (&100 bytes in length)		spraddr: dw &9000 ;address Plus sprite is stored (&100 bytes in length)
	</geshi>		</geshi>
			</pre>

	== See also ==		== See also ==

Redbox: /* Conversion */

2010-02-02T04:31:06Z

Conversion

← Older revision		Revision as of 04:31, 2 February 2010
Line 22:		Line 22:
	To convert a sprite, you can download the DSK image below which contains a converter utility (use RUN"DISC") or you can use the source code provided on this page.		To convert a sprite, you can download the DSK image below which contains a converter utility (use RUN"DISC") or you can use the source code provided on this page.

	To use the converter utility, you must have first captured your standard CPC sprite (you can use the SPRITER utility on the disc to do this) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the ~~sprites~~ and ~~convert them~~ before saving the converted sprite to the disk.		To use the converter utility, you must have first captured your standard CPC sprite (you can use the SPRITER utility on the disc to do this) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the original and converted sprite before saving the converted sprite to the disk.

	== Download ==		== Download ==

Redbox: /* Conversion */

2010-02-02T04:29:57Z

Conversion

← Older revision		Revision as of 04:29, 2 February 2010
Line 22:		Line 22:
	To convert a sprite, you can download the DSK image below which contains a converter utility (use RUN"DISC") or you can use the source code provided on this page.		To convert a sprite, you can download the DSK image below which contains a converter utility (use RUN"DISC") or you can use the source code provided on this page.

	To use the converter utility, you must have first ~~capture~~ your standard CPC sprite (you can use the SPRITER utility on the disc) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the sprites and convert them before saving the converted sprite to the disk.		To use the converter utility, you must have first captured your standard CPC sprite (you can use the SPRITER utility on the disc to do this) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the sprites and convert them before saving the converted sprite to the disk.

	== Download ==		== Download ==

Redbox: /* Conversion */

2010-02-02T04:28:48Z

Conversion

← Older revision		Revision as of 04:28, 2 February 2010
Line 20:		Line 20:
	== Conversion ==		== Conversion ==

	To convert a sprite, you can download the DSK image below which contains a converter utility (use RUN"DISC") or you can use the source code provided.		To convert a sprite, you can download the DSK image below which contains a converter utility (use RUN"DISC") or you can use the source code provided on this page.

	To use the converter utility, you must have first capture your standard CPC sprite (you can use the SPRITER utility on the disc) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the sprites and convert them before saving the converted sprite to the disk.		To use the converter utility, you must have first capture your standard CPC sprite (you can use the SPRITER utility on the disc) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the sprites and convert them before saving the converted sprite to the disk.

Redbox: /* Conversion */

2010-02-02T04:28:21Z

Conversion

← Older revision		Revision as of 04:28, 2 February 2010
Line 20:		Line 20:
	== Conversion ==		== Conversion ==

	To convert a sprite, you can download the DSK image below ~~and use the~~ converter utility or you can use the source code provided.		To convert a sprite, you can download the DSK image below which contains a converter utility (use RUN"DISC") or you can use the source code provided.

	To use the converter utility, you must have first capture your standard CPC sprite (you can use the SPRITER utility on the disc) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the sprites and convert them before saving the converted sprite to the disk.		To use the converter utility, you must have first capture your standard CPC sprite (you can use the SPRITER utility on the disc) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the sprites and convert them before saving the converted sprite to the disk.

Redbox: /* Conversion */

2010-02-02T04:27:56Z

Conversion

← Older revision		Revision as of 04:27, 2 February 2010
Line 20:		Line 20:
	== Conversion ==		== Conversion ==

	To convert a sprite, you can use the converter utility on the ~~DSK image (to load type RUN”DISC”) which can be downloaded below~~.		To convert a sprite, you can download the DSK image below and use the converter utility or you can use the source code provided.

	To use the converter utility, you must have first capture your standard CPC sprite (you can use the SPRITER utility on the disc) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the sprites and convert them before saving the converted sprite to the disk.		To use the converter utility, you must have first capture your standard CPC sprite (you can use the SPRITER utility on the disc) which must be 16 x 16 in size (8 bytes wide by 16 lines high). The converter utility will then display the sprites and convert them before saving the converted sprite to the disk.

Redbox: /* Source code */

2010-02-02T04:19:42Z

Source code

← Older revision		Revision as of 04:19, 2 February 2010
Line 60:		Line 60:
	ld a,(hl) ;and load data from it into A		ld a,(hl) ;and load data from it into A

	bit 7,a ;does bit 0 equal 1? if so, reset Z		bit 7,a ;does bit equal 1? if so, reset Z
	ld b,&1 ;pixel 0, bit 0 = &1		ld b,&1 ;pixel 0, bit 0 = &1
	call nz,addbit ;add the bit to our pixel		call nz,addbit ;add the bit to our pixel

	bit 3,a ;does bit 0 equal 1? if so, reset Z		bit 3,a ;does bit equal 1? if so, reset Z
	ld b,&2 ;pixel 0, bit 1 (%0010) = &2		ld b,&2 ;pixel 0, bit 1 (%0010) = &2
	call nz,addbit ;add the bit to our pixel		call nz,addbit ;add the bit to our pixel

	bit 5,a ;does bit 0 equal 1? if so, reset Z		bit 5,a ;does bit equal 1? if so, reset Z
	ld b,&4 ;pixel 0, bit 2 (%0100) = &4		ld b,&4 ;pixel 0, bit 2 (%0100) = &4
	call nz,addbit ;add the bit to our pixel		call nz,addbit ;add the bit to our pixel

	bit 1,a ;does bit 0 equal 1? if so, reset Z		bit 1,a ;does bit equal 1? if so, reset Z
	ld b,&8 ;pixel 0, bit 3 (%1000) = &8		ld b,&8 ;pixel 0, bit 3 (%1000) = &8
	call nz,addbit ;add the bit to our pixel		call nz,addbit ;add the bit to our pixel
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	ld a,(hl) ;and load it into A		ld a,(hl) ;and load it into A

	bit 6,a ;does bit 0 equal 1? if so, reset Z		bit 6,a ;does bit equal 1? if so, reset Z
	ld b,&1 ;pixel 1, bit 0 (%0001) = &1		ld b,&1 ;pixel 1, bit 0 (%0001) = &1
	call nz,addbit ;add the bit to our pixel		call nz,addbit ;add the bit to our pixel

	bit 2,a ;does bit 0 equal 1? if so, reset Z		bit 2,a ;does bit equal 1? if so, reset Z
	ld b,&2 ;pixel 1, bit 1 (%0010) = &2		ld b,&2 ;pixel 1, bit 1 (%0010) = &2
	call nz,addbit ;add the bit to our pixel		call nz,addbit ;add the bit to our pixel

	bit 4,a ;does bit 0 equal 1? if so, reset Z		bit 4,a ;does bit equal 1? if so, reset Z
	ld b,&4 ;pixel 1, bit 2 (%0100) = &4		ld b,&4 ;pixel 1, bit 2 (%0100) = &4
	call nz,addbit ;add the bit to our pixel		call nz,addbit ;add the bit to our pixel

	bit 0,a ;does bit 0 equal 1? if so, reset Z		bit 0,a ;does bit equal 1? if so, reset Z
	ld b,&8 ;pixel 1, bit 3 (%1000) = &8		ld b,&8 ;pixel 1, bit 3 (%1000) = &8
	call nz,addbit ;add the bit to our pixel		call nz,addbit ;add the bit to our pixel

Redbox: /* Source code */

2010-02-02T02:21:41Z

Source code

← Older revision		Revision as of 02:21, 2 February 2010
Line 140:		Line 140:
	ret		ret

	scraddr: dw &C000		scraddr: dw &C000 ;screen address to grab CPC sprite from

	pixel: db &0		pixel: db &0 ;pixel store

	spraddr: dw &9000		spraddr: dw &9000 ;address Plus sprite is stored (&100 bytes in length)
	</geshi>		</geshi>

Redbox at 02:16, 2 February 2010

2010-02-02T02:16:06Z

← Older revision		Revision as of 02:16, 2 February 2010
Line 1:		Line 1:
	The Plus hardware sprite format is different to the standard CPC sprite format, so sprites have to be converted if you want to use them as hardware sprites on the Plus.		The Plus [[ASIC]] hardware sprite format is different to the standard CPC sprite format, so sprites have to be converted if you want to use them as hardware sprites on the Plus.

	== The formats ==		== The formats ==

Redbox: /* Source code */

2010-02-02T02:14:51Z

Source code

← Older revision		Revision as of 02:14, 2 February 2010
Line 30:		Line 30:
	== Source code ==		== Source code ==

	The source code for the converter (which will assemble in ~~WinAPE~~ and Maxam) is as follows:		The source code for the converter (which will assemble in [[WinApe]] and [[Maxam]]) is as follows:

	<geshi lang=Z80>		<geshi lang=Z80>