CP/M 3.0 - Revision history

Polluks: Category

2025-10-13T19:56:22Z

2025-04-20T10:49:59Z

Links

← Older revision		Revision as of 10:49, 20 April 2025
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	=== Links ===		=== Links ===
	* [https://www.seasip.info/Cpm/index.html John Elliott's information about CPM 2.2 and CPM+ on the Amstrad]		* [https://www.seasip.info/Cpm/index.html John Elliott's information about CPM 2.2 and CPM+ on the Amstrad]
			*[[Media:CPM Plus Handbook.pdf\|CP/M Plus handbook]]

	[[Category:CP/M]][[Category:Operating System]]		[[Category:CP/M]][[Category:Operating System]]

2024-12-15T17:19:05Z

Console Output/Terminal emulation

← Older revision		Revision as of 17:19, 15 December 2024
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	ESC A - cursor up		ESC A - cursor up
	ESC B - cursor down		ESC B - cursor down
	ESC C - cursor ~~left~~		ESC C - cursor right
	ESC D - cursor ~~right~~		ESC D - cursor left
	ESC E - clear screen and move cursor to home		ESC E - clear screen and move cursor to home
	ESC H - move cursor to home		ESC H - move cursor to home

2024-04-28T12:24:42Z

Extra memory

← Older revision		Revision as of 12:24, 28 April 2024
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	=== Extra memory ===		=== Extra memory ===

	CPM+ on the CPC uses 128KB of memory. Therefore selections C4,C5,C6,C7 must be avoided if you have additional memory. Due to the design of DkTronic's compatible RAM expansions all memory accesses to additional RAM must occur from bank 0 (i.e. 'C0') and be transferred to the TPA in bank 1 (i.e. 'C2').		CPM+ on the CPC uses 128KB of memory. Therefore selections C4,C5,C6,C7 must be avoided if you have additional memory. Due to the design of DkTronic's compatible RAM expansions all memory accesses to additional RAM must occur from bank 0 (i.e. 'C1') and be transferred to the TPA in bank 1 (i.e. 'C2').

	Therefore access to the additional RAM follows a pattern such as this:		Therefore access to the additional RAM follows a pattern such as this:

2023-06-22T21:06:49Z

Memory layout

← Older revision		Revision as of 21:06, 22 June 2023
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	* 1st 64KB has Amstrad's XBIOS (callable using 'userf'), CCP, BDOS, BIOS, screen and firmware. Screen is at &4000-&7fff. Firmware is used. AMSDOS is not used.		* 1st 64KB has Amstrad's XBIOS (callable using 'userf'), CCP, BDOS, BIOS, screen and firmware. Screen is at &4000-&7fff. Firmware is used. AMSDOS is not used.
	* &c1/&c2 are used, so that there is common code at &c000-&ffff. This common code has a small BDOS and BIOS. Most of the functions use trampoline code to transition to bank 0 and call into the XBIOS.		## &c1/&c2 are used, so that there is common code at &c000-&ffff. This common code has a small BDOS and BIOS. Most of the functions use trampoline code to transition to bank 0 and call into the XBIOS.
	* 2nd 64KB has the TPA and the shared code.		* 2nd 64KB has the TPA and the shared code.
	a) Page C4 has WBOOT and BDOS jump + &100-&3f00 of the TPA. This calls to functions in Page c7.		## Page C4 has WBOOT and BDOS jump + &100-&3f00 of the TPA. This calls to functions in Page c7.
	b) Page C5 has &4000-&7fff of the TPA.		## Page C5 has &4000-&7fff of the TPA.
	c) Page C6 has &8000-&bfff of the TPA.		## Page C6 has &8000-&bfff of the TPA.
	d) Page C7 has &c000-&f2fb of the TPA. From &f2fc to &ffff is the trampoline code which transitions * to 1st bank of 64KB.		## Page C7 has &c000-&f2fb of the TPA. From &f2fc to &ffff is the trampoline code which transitions * to 1st bank of 64KB.

	=== Extra memory ===		=== Extra memory ===

2019-12-15T14:13:57Z

= ESC 2 - set language

← Older revision		Revision as of 14:13, 15 December 2019
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	PCW and Spectrum support viewports. This is not supported on CPC. CPC assumes a single viewport covering the entire screen and it is moved up/down using software when using insert line or delete current, but moved up using hardware otherwise.		PCW and Spectrum support viewports. This is not supported on CPC. CPC assumes a single viewport covering the entire screen and it is moved up/down using software when using insert line or delete current, but moved up using hardware otherwise.

	==== ESC 2 - set language ===		==== ESC 2 - set language ====

	ESC 2 <language>		ESC 2 <language>

2019-12-15T14:13:43Z

Console Output/Terminal emulation

@@ Line 59: / Line 59: @@
   ESC 1 - enable status line
   ESC 2 - set language
-  ESC 3 - set screen mode?
+  ESC 3 - set screen mode
   ESC A - cursor up
   ESC B - cursor down
@@ Line 92: / Line 92: @@
 PCW and Spectrum support viewports. This is not supported on CPC. CPC assumes a single viewport covering the entire screen and it is moved up/down using software when using insert line or delete current, but moved up using hardware otherwise.
@@ Line 98: / Line 133: @@
 Set the cursor position:
-ESC <y> <x>
+ESC Y <y> <x>
 Coordinates are relative to top-left and are 0 based with 32 added.
@@ Line 104: / Line 139: @@
 e.g. for x,y of 2,10:
-  ESC,10+32,2+32
+  ESC,'Y',10+32,2+32
 === Memory layout ===

2019-12-15T14:01:40Z

ESC Y - set cursor position

← Older revision		Revision as of 14:01, 15 December 2019
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	==== ESC Y - set cursor position ====		==== ESC Y - set cursor position ====

	ESC <x> <y>		Set the cursor position:

			ESC <y> <x>

	Coordinates are relative to top-left and are 0 based with 32 added.		Coordinates are relative to top-left and are 0 based with 32 added.

	e.g. for x,y of 2,10:~~<x> and y~~		e.g. for x,y of 2,10:

	ESC,2+32,10+32		ESC,10+32,2+32

	=== Memory layout ===		=== Memory layout ===

2019-12-15T13:06:57Z

Console Output/Terminal emulation

← Older revision		Revision as of 13:06, 15 December 2019
Line 92:		Line 92:

	PCW and Spectrum support viewports. This is not supported on CPC. CPC assumes a single viewport covering the entire screen and it is moved up/down using software when using insert line or delete current, but moved up using hardware otherwise.		PCW and Spectrum support viewports. This is not supported on CPC. CPC assumes a single viewport covering the entire screen and it is moved up/down using software when using insert line or delete current, but moved up using hardware otherwise.


			==== ESC Y - set cursor position ====

			ESC <x> <y>

			Coordinates are relative to top-left and are 0 based with 32 added.

			e.g. for x,y of 2,10:<x> and y

			ESC,2+32,10+32

	=== Memory layout ===		=== Memory layout ===

2019-12-09T23:24:21Z

PALETTE.COM

← Older revision		Revision as of 23:24, 9 December 2019
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	The syntax is:		The syntax is:

	PALETTE <background> <foreground>		PALETTE <background> <foreground>

	<background> and <foreground> are r,g,b colour codes with 2 bits for each colour defined in binary as r1 r0 g1 g0 b1 b0. Therefore black is 000000, bright white is 111111, white (grey) is 010101 and bright red is 110000.		<background> and <foreground> are r,g,b colour codes with 2 bits for each colour defined in binary as r1 r0 g1 g0 b1 b0. Therefore black is 000000, bright white is 111111, white (grey) is 010101 and bright red is 110000.

← Older revision		Revision as of 19:56, 13 October 2025
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	[[Image:cpm30boot.jpg\|thumb\|300px\|CP/M 3.0 after boot]]		[[Image:cpm30boot.jpg\|thumb\|300px\|CP/M 3.0 after boot]]

	CPM 3.0 (also known as CPM+) was available on the 2nd [[~~System_Disk~~]] Disc for CPC6128 but there were other implementations available.		CPM 3.0 (also known as CPM+) was available on the 2nd [[System Disk]] Disc for CPC6128 but there were other implementations available.

	== Dobbertin's implementation of CP/M+ ==		== Dobbertin's implementation of CP/M+ ==
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	*[[Media:CPM Plus Handbook.pdf\|CP/M Plus handbook]]		*[[Media:CPM Plus Handbook.pdf\|CP/M Plus handbook]]

	[[Category:CP/M]][[Category:Operating System]]		[[Category:CP/M]] [[Category:Operating System]] [[Category:Extended RAM Software]]