Geneve GPL Interpreter - Revision history

Mizapf at 17:54, 10 April 2021

2021-04-10T17:54:49Z

← Older revision		Revision as of 17:54, 10 April 2021
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	For different speeds different kinds of RAM (DRAM vs. SRAM) are used. The ROMPAGE feature sets the mapper address 8002 (4000-5FFF) to BA, which points to the address space of the peripheral card in the box; normally, page 07 is set which contains the GeneveOS Master DSR.		For different speeds different kinds of RAM (DRAM vs. SRAM) are used. The ROMPAGE feature sets the mapper address 8002 (4000-5FFF) to BA, which points to the address space of the peripheral card in the box; normally, page 07 is set which contains the GeneveOS Master DSR.

	The cartridge ROM (6000-7FFF) is always mapped as page 36, while the second ROM page is 37; this is fixed inside the Gate Array in GPL mode, so changes to the settings at 8003 have no effect. The GROM pages are 38-3F. Page 03 must stay mapped to C000 (mapper address 8006) to enable GROM/GRAM and sound access.		The cartridge ROM (6000-7FFF) is always mapped as page 36, while the second ROM page is 37; this is fixed inside the Gate Array in GPL mode, so changes to the settings at 8003 have no effect. The GROM pages are 38-3F. Page 03 must stay mapped to C000 (mapper address 8006) to enable GROM/GRAM and sound access; changing this values inhibits the access.

	== Speed selection ==		== Speed selection ==

2021-04-10T17:53:49Z

← Older revision		Revision as of 17:53, 10 April 2021
Line 24:		Line 24:
	\|}		\|}

	For different speeds different kinds of RAM (DRAM vs. SRAM) are used. The ROMPAGE feature sets the 4000-5FFF ~~page value~~ to >BA, which points to the address space of the peripheral card in the box, ~~unlike >~~07 which contains the ~~MDOS replacement~~ DSR.		For different speeds different kinds of RAM (DRAM vs. SRAM) are used. The ROMPAGE feature sets the mapper address 8002 (4000-5FFF) to BA, which points to the address space of the peripheral card in the box; normally, page 07 is set which contains the GeneveOS Master DSR.

	The cartridge ROM (6000-7FFF) is always mapped to page 36, while the second ROM page is 37. The GROM pages are 38-3F. Page 03 must be mapped to C000 ~~at all times~~ to enable ~~cartridge~~ access.		The cartridge ROM (6000-7FFF) is always mapped as page 36, while the second ROM page is 37; this is fixed inside the Gate Array in GPL mode, so changes to the settings at 8003 have no effect. The GROM pages are 38-3F. Page 03 must stay mapped to C000 (mapper address 8006) to enable GROM/GRAM and sound access.

	== Speed selection ==		== Speed selection ==

2019-11-17T00:57:50Z

Mapping

← Older revision		Revision as of 00:57, 17 November 2019
Line 26:		Line 26:
	For different speeds different kinds of RAM (DRAM vs. SRAM) are used. The ROMPAGE feature sets the 4000-5FFF page value to >BA, which points to the address space of the peripheral card in the box, unlike >07 which contains the MDOS replacement DSR.		For different speeds different kinds of RAM (DRAM vs. SRAM) are used. The ROMPAGE feature sets the 4000-5FFF page value to >BA, which points to the address space of the peripheral card in the box, unlike >07 which contains the MDOS replacement DSR.

	The ~~cartrige~~ ROM (6000-7FFF) is always mapped to page 36, while the second ROM page is 37. The GROM pages are 38-3F. Page 03 must be mapped to C000 at all times to enable cartridge access.		The cartridge ROM (6000-7FFF) is always mapped to page 36, while the second ROM page is 37. The GROM pages are 38-3F. Page 03 must be mapped to C000 at all times to enable cartridge access.

	== Speed selection ==		== Speed selection ==

2019-11-17T00:57:38Z

Mapping

← Older revision		Revision as of 00:57, 17 November 2019
Line 25:		Line 25:

	For different speeds different kinds of RAM (DRAM vs. SRAM) are used. The ROMPAGE feature sets the 4000-5FFF page value to >BA, which points to the address space of the peripheral card in the box, unlike >07 which contains the MDOS replacement DSR.		For different speeds different kinds of RAM (DRAM vs. SRAM) are used. The ROMPAGE feature sets the 4000-5FFF page value to >BA, which points to the address space of the peripheral card in the box, unlike >07 which contains the MDOS replacement DSR.

			The cartrige ROM (6000-7FFF) is always mapped to page 36, while the second ROM page is 37. The GROM pages are 38-3F. Page 03 must be mapped to C000 at all times to enable cartridge access.

	== Speed selection ==		== Speed selection ==

2019-11-17T00:56:11Z

Mapping

2019-11-17T00:53:07Z

Mapping

2019-04-23T17:59:11Z

Swapped digits

2011-10-17T14:48:03Z

Mapping

2011-10-17T12:15:46Z

@@ Line 1: / Line 1: @@
 == Speed selection ==
@@ Line 5: / Line 32: @@
 {| class="plainc"
 |-
-! width="8%" | Speed
+! Speed
-! width="8%" | Video waitstates
+! Video waitstates
-! width="8%" | Extra waitstates
+! Extra waitstates
-! width="8%" | Page for 0000-1FFF
+! Page for 0000-1FFF
-! width="8%" | Page for 8000-9FFF
+! Page for 8000-9FFF
 |-
 | 1
@@ Line 42: / Line 69: @@
 |-
 |}
 [[Category:Geneve]]

2011-10-17T12:05:08Z

← Older revision		Revision as of 12:05, 17 October 2011
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	The GPL Interpreter allows for selecting the execution speed. Five speeds are selectable. The speed is determined by these settings:		The GPL Interpreter allows for selecting the execution speed. Five speeds are selectable. The speed is determined by these settings:

	{\| class="~~plain~~"		{\| class="plainc"
	\|-		\|-
	! Speed		! width="8%" \| Speed
	! Video waitstates		! width="8%" \| Video waitstates
	! Extra waitstates		! width="8%" \| Extra waitstates
	! width="8%" \| Page for 0000-1FFF		! width="8%" \| Page for 0000-1FFF
	~~! width="8%" \| Page for 2000-3FFF~~
	~~! width="8%" \| Page for 4000-5FFF~~
	~~! width="8%" \| Page for 6000-7FFF~~
	! width="8%" \| Page for 8000-9FFF		! width="8%" \| Page for 8000-9FFF
	~~! width="8%" \| Page for A000-BFFF~~
	~~! width="8%" \| Page for C000-DFFF~~
	~~! width="8%" \| Page for E000-FFFF~~
	\|-		\|-
	\| 1		\| 1
Line 21:		Line 15:
	\| x		\| x
	\| EC		\| EC
	~~\| ED~~
	~~\| 07~~
	~~\| 36~~
	\| 34		\| 34
	~~\| EF~~
	~~\| 03~~
	~~\| 35~~
	\|-		\|-
	\| 2		\| 2
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	\| -		\| -
	\| 33		\| 33
	~~\| ED~~
	~~\| 07~~
	~~\| 36~~
	\| 34		\| 34
	~~\| EF~~
	~~\| 03~~
	~~\| 35~~
	\|-		\|-
	\| 3		\| 3
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	\| -		\| -
	\| EC		\| EC
	~~\| ED~~
	~~\| 07~~
	~~\| 36~~
	\| 34		\| 34
	~~\| EF~~
	~~\| 03~~
	~~\| 35~~
	\|-		\|-
	\| 4		\| 4
Line 57:		Line 33:
	\| -		\| -
	\| 33		\| 33
	~~\| ED~~
	~~\| 07~~
	~~\| 36~~
	\| EE		\| EE
	~~\| EF~~
	~~\| 03~~
	~~\| 35~~
	\|-		\|-
	\| 5 c		\| 5
	\| x		\| x
	\| -		\| -
	\| EC		\| EC
	~~\| ED~~
	~~\| 07~~
	~~\| 36~~
	\| EE		\| EE
	~~\| EF~~
	~~\| 03~~
	~~\| 35~~
	\|-		\|-
	\|}		\|}

	[[Category:Geneve]]		[[Category:Geneve]]