AMSDOS Hidden RSX Functions - Revision history

TFM: /* Init */

2015-04-04T14:40:29Z

‎Init

TFM: /* Init */

2015-04-04T14:39:54Z

‎Init

MacDeath at 23:55, 16 December 2010

2010-12-16T23:55:32Z

TFM: /* Notes */

2010-08-09T18:56:33Z

‎Notes

TFM: /* Notes */

2010-08-09T18:54:13Z

‎Notes

Nocash at 22:21, 24 January 2010

2010-01-24T22:21:35Z

Nocash at 22:20, 24 January 2010

2010-01-24T22:20:59Z

Nocash: Created page with '== Message On/Off == chr(81h) MESSAGE_ON_OFF ;in: A=flag(00h=on, >=01h=off) (R,I,C);out:A=old == Set Drive Speed == chr(82h) SET_DRIVE_SPEED ;in: HL=ptr to 9 bytes …'

2010-01-24T22:17:50Z

Created page with '== Message On/Off == chr(81h) MESSAGE_ON_OFF ;in: A=flag(00h=on, >=01h=off) (R,I,C);out:A=old == Set Drive Speed == chr(82h) SET_DRIVE_SPEED ;in: HL=ptr to 9 bytes …'

New page

== Message On/Off ==
chr(81h) MESSAGE_ON_OFF ;in: A=flag(00h=on, >=01h=off) (R,I,C);out:A=old

== Set Drive Speed ==
chr(82h) SET_DRIVE_SPEED ;in: HL=ptr to 9 bytes
00h 2 spin-up time in 1/50sec ticker ticks (usually 50)
02h 2 spin-down time in 1/50sec ticker ticks (usually 250)
04h 1 usually AFh, delay for chr(86h) function
05h 1 whatever? in 1ms units (usually 15 = 15ms)
06h 1 settletime AND steprate in 1ms units (usually 12 = 12ms)
07h 1 head unload time in 32ms units (usually 1 = 32ms)
08h 1 head load time, bit0=DMA disable (usually 16ms)

== Set Disk Type ==
chr(83h) SET_DISK_TYPE ;in: A=type (0xh=IBM, 4xh=CPM, Cxh=DATA)

== Read/Write Sector ==
chr(84h) READ_SECTOR ;in: E=drv, D=trk, C=sec, HL=dest
chr(85h) WRITE_SECTOR ;in: E=drv, D=trk, C=sec, HL=src

== Format Track ==
chr(86h) FORMAT_TRACK ;in: E=drv, D=trk, C=sec1, HL=ptr to 9x4 byte

== Seek Track ==
chr(87h) SEEK_TRACK ;in: E=drv, D=trk, out: cy=1=okay

== Test Drive ==
chr(88h) TEST_DRIVE ;in: A=drv, out: cy=1=okay

== Set Retry Count ==
chr(89h) SET_RETRY_COUNT ;in: A=retry count (default=10) (01h..(1)00h)

== Init ==
[C006h] INIT ;in/out: DE=LORAM, HL=HIRAM, CY=?
This the initialization function (called by KL_ROM_WALK, which is automatically done on power-up). The function is always found in the first entry of the RSX lists, ie. [C006h]=address, and [C004h]=name. Where known names are:
"CPM ROM" Amstrad AMSDOS and Vortex VDOS1.0
"V ROM" Vortex VDOS2.0
"Pdos" PARADOS
"ROMDOS " KDS ROMDOS, Siren Software ROMDOS XL, and XL 4.0
"XDDOS ROM" Dobbertin X-DDOS 1.11 and X-DDOS 2.10
"RODOS ROM" Romantic Robot RODOS 2.11, 2.15, 2.19
The names are typically containing "invalid" characters like spaces or lowercase letters, so they can't be accidently used in BASIC as |NAME.

== Notes ==
* AMSDOS supports only single-sided disks (the FDC supports two sides, but AMSDOS doesn't). All other DOS clones like VDOS, RODOS, ROMDOS, PARADOS, X-DDOS support double-sided disks. However, unknown if/how some/all/which of that clones allow to access the 2nd side via above functions (possibly/best by unused bits in the drive number, or by extending track number to 0..159 for 2x80 tracks)?

* The above chr(8xh) function vectors are usually at ROM7:C033h..C04Dh in AMSDOS, however, clones like VDOS, RODOS, ROMDOS, X-DDOS have the vectors arranged differently, so always use KL_FIND_COMMAND to obtain the function address.

← Older revision		Revision as of 23:55, 16 December 2010
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	* The above chr(8xh) function vectors are usually at ROM7:C033h..C04Dh in AMSDOS, however, clones like VDOS, RODOS, ROMDOS, X-DDOS have the vectors arranged differently, so always use KL_FIND_COMMAND to obtain the function address.		* The above chr(8xh) function vectors are usually at ROM7:C033h..C04Dh in AMSDOS, however, clones like VDOS, RODOS, ROMDOS, X-DDOS have the vectors arranged differently, so always use KL_FIND_COMMAND to obtain the function address.
		+
		+	[[Category:Programming]]

@@ Line 45: / Line 45: @@
 == Notes ==
-* AMSDOS supports only single-sided disks (the FDC supports two sides, but AMSDOS doesn't). All other DOS clones like VDOS, RODOS, ROMDOS, PARADOS, [[XD-DOS]] support double-sided disks. However, unknown if/how some/all/which of that clones allow to access the 2nd side via above functions (possibly/best by unused bits in the drive number, or by extending track number to 0..159 for 2x80 tracks)?
+* AMSDOS supports only single-sided disks (the FDC supports two sides, but AMSDOS doesn't). All other DOS clones like [[VDOS]], RODOS, ROMDOS, PARADOS, [[XD-DOS]] support double-sided disks. However, unknown if/how some/all/which of that clones allow to access the 2nd side via above functions (possibly/best by unused bits in the drive number, or by extending track number to 0..159 for 2x80 tracks)?
 * The above chr(8xh) function vectors are usually at ROM7:C033h..C04Dh in AMSDOS, however, clones like VDOS, RODOS, ROMDOS, X-DDOS have the vectors arranged differently, so always use KL_FIND_COMMAND to obtain the function address.

← Older revision		Revision as of 22:21, 24 January 2010
Line 1:		Line 1:
−	Below "Hidden" RSX commands are having non-ASCII names, so they cannot be used under BASIC by typing \|NAME. Instead, they can be used only in machine code, by obtaining the function address via KL_FIND_COMMAND, for ~~detals ses~~: [[BIOS Kernel RSX Functions (Resident System Extensions)]]	+	Below "Hidden" RSX commands are having non-ASCII names, so they cannot be used under BASIC by typing \|NAME. Instead, they can be used only in machine code, by obtaining the function address via KL_FIND_COMMAND, for details see: [[BIOS Kernel RSX Functions (Resident System Extensions)]]

	== Message On/Off ==		== Message On/Off ==

← Older revision		Revision as of 22:20, 24 January 2010
Line 1:		Line 1:
		+	Below "Hidden" RSX commands are having non-ASCII names, so they cannot be used under BASIC by typing \|NAME. Instead, they can be used only in machine code, by obtaining the function address via KL_FIND_COMMAND, for detals ses: [[BIOS Kernel RSX Functions (Resident System Extensions)]]
		+
	== Message On/Off ==		== Message On/Off ==
	chr(81h) MESSAGE_ON_OFF ;in: A=flag(00h=on, >=01h=off) (R,I,C);out:A=old		chr(81h) MESSAGE_ON_OFF ;in: A=flag(00h=on, >=01h=off) (R,I,C);out:A=old

@@ Line 43: / Line 43: @@
    "XDDOS ROM"  Dobbertin X-DDOS 1.11 and X-DDOS 2.10
    "RODOS ROM"  Romantic Robot RODOS 2.11, 2.15, 2.19
-The names are typically containing "invalid" characters like spaces or lowercase letters, so they can't be accidently used in BASIC as |NAME.
+The names are typically containing "invalid" characters like spaces or lowercase letters, so they can't be accidentally used in BASIC as |NAME.
 == Notes ==

@@ Line 39: / Line 39: @@
    "V ROM"      Vortex VDOS2.0
    "Pdos"       PARADOS
    "ROMDOS "    KDS ROMDOS, Siren Software ROMDOS XL, and XL 4.0
    "XDDOS ROM"  Dobbertin X-DDOS 1.11 and X-DDOS 2.10