83Plus:BCALLs:8054 - Revision history

Luby at 12:17, 17 September 2008

2008-09-17T12:17:49Z

FloppusMaximus: A is destroyed

2007-05-11T15:57:24Z

A is destroyed

Nyquist562: Added comment about effect of call of reg. A

2007-05-10T00:52:40Z

Added comment about effect of call of reg. A

FloppusMaximus: /* Comments */ page number masking

2007-01-30T04:49:06Z

‎Comments: page number masking

FloppusMaximus at 00:13, 8 February 2006

2006-02-08T00:13:06Z

FloppusMaximus: A bit simpler

2006-02-08T00:11:53Z

A bit simpler

New page

[[Category:83Plus:BCALLs:By_Name:Other|FlashToRAM2]] [[Category:83Plus:BCALLs:By_Name|FlashToRAM2]] [[Category:83Plus:BCALLs:By_Address|8054 - FlashToRAM2]]
== Synopsis ==
'''Unofficial Name:''' FlashToRAM2

'''BCALL Address:''' 8054

Copy data to RAM from either Flash or RAM.

=== Inputs ===
* AHL = source address
* DE = destination address
* BC = number of bytes to copy

=== Outputs ===
* AHL advanced by BC bytes
* DE advanced by BC bytes
* BC = 0

=== Destroys ===
* [[83Plus:RAM:8100|ramCode]]

== Comments ==
This is almost exactly equivalent to the OS [[83Plus:BCALLs:5017|FlashToRAM]].

← Older revision		Revision as of 00:52, 10 May 2007
Line 24:		Line 24:

	Note that the high bits of A are masked out appropriately (so, for instance, passing A = 7F will read from the boot page regardless of the hardware version.) Set A = 0 to copy data from the main RAM; you cannot use this routine to copy data from the extra RAM.		Note that the high bits of A are masked out appropriately (so, for instance, passing A = 7F will read from the boot page regardless of the hardware version.) Set A = 0 to copy data from the main RAM; you cannot use this routine to copy data from the extra RAM.
		+
		+
		+
		+	In experimenting with this BCall, I have discovered that the register A is often disrupted after this call returns
		+	---Nyquist562---

← Older revision		Revision as of 04:49, 30 January 2007
Line 22:		Line 22:
	== Comments ==		== Comments ==
	This is almost exactly equivalent to the OS [[83Plus:BCALLs:5017\|FlashToRAM]].		This is almost exactly equivalent to the OS [[83Plus:BCALLs:5017\|FlashToRAM]].
		+
		+	Note that the high bits of A are masked out appropriately (so, for instance, passing A = 7F will read from the boot page regardless of the hardware version.) Set A = 0 to copy data from the main RAM; you cannot use this routine to copy data from the extra RAM.

@@ Line 8: / Line 8: @@
 === Inputs ===
-* AHL = source address
+* A = source page
 * DE = destination address
 * BC = number of bytes to copy

@@ Line 13: / Line 13: @@
 === Outputs ===
-* AHL advanced by BC bytes
+* HL advanced by BC bytes
 * DE advanced by BC bytes
 * BC = 0
 === Destroys ===
 * [[83Plus:RAM:8100|ramCode]]
@@ Line 24: / Line 25: @@
 Note that the high bits of A are masked out appropriately (so, for instance, passing A = 7F will read from the boot page regardless of the hardware version.)  Set A = 0 to copy data from the main RAM; you cannot use this routine to copy data from the extra RAM.

@@ Line 1: / Line 1: @@
-[[Category:83Plus:BCALLs:By_Name:Other|FlashToRAM2]] [[Category:83Plus:BCALLs:By_Name|FlashToRAM2]] [[Category:83Plus:BCALLs:By_Address|8054 - FlashToRAM2]]
+[[Category:83Plus:BCALLs:By_Name:Memory|FlashToRAM2]] [[Category:83Plus:BCALLs:By_Name|FlashToRAM2]] [[Category:83Plus:BCALLs:By_Address|8054 - FlashToRAM2]]
 == Synopsis ==
 '''Unofficial Name:''' FlashToRAM2