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Amiga Format CD 42
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Amiga Format AFCD42 (Issue 126, Aug 1999).iso
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-serious-
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hardware
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blizkick
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modules
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remcards.asm
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Assembly Source File
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1999-05-17
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2KB
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75 lines
; FILE: Source:modules/RemCards.ASM REV: 3 --- Removes carddisk stuff
;
; RemCards patch for BlizKick
; ~~~~~~~~~~~~~~~~~~~~~~~~~~~
; This module removes all carddisk stuff from system thus saving some
; memory/resources.
;
; Written by Harry Sintonen.
; This source code is Public Domain.
;
incdir "include:"
include "blizkickmodule.i" ; Some required...
SECTION PATCH,CODE
_DUMMY_LABEL
BK_PTC
; Code is run with following incoming parameters:
;
; a0=ptr to ROM start (buffer) eg. $1DE087B8
; a1=ptr to ROM start (ROM) eg. $00F80000 (do *not* access!)
; d0=ROM lenght in bytes eg. $00080000
; a2=ptr to _FindResident routine (will search ROM buffer for resident tag):
; CALL: jsr (a2)
; IN: a0=ptr to ROM, d0=rom len, a1=ptr to resident name
; OUT: d0=ptr to resident (buf) or NULL
; a3=ptr to _InstallModule routine (can be used to plant a "module"):
; CALL: jsr (a3)
; IN: a0=ptr to ROM, d0=rom len, a1=ptr to module, d6=dosbase
; OUT: d0=success
; a4=ptr to _Printf routine (will dump some silly things (errormsg?) to stdout ;-)
; CALL: jsr (a4)
; IN: a0=FmtString, a1=Array (may be 0), d6=dosbase
; OUT: -
; d6=dosbase, a6=execbase
;
; Code should return:
;
; d0=true if succeeded, false if failed.
; d1-d7/a0-a6 can be trashed. a7 *must* be preserved! ;-)
cmp.w #37,($C,a0) ;requires V37+ rom image
bhs.b .cont
moveq #0,d0
rts
.cont lea (.resname,pc),a1
jsr (a2)
tst.l d0
beq.b .nores
move.l d0,a0
;move.b #RTW_NEVER,(RT_FLAGS,a0)
clr.b (RT_FLAGS,a0)
moveq #1,d0
rts
.nores pea (.resname,pc)
move.l sp,a1
lea (.mes1,pc),a0
jsr (a4)
addq.l #4,sp
moveq #0,d0
rts
.resname dc.b 'card.resource',0
.mes1 dc.b 'RemCards: %s not found!',10,0
SECTION VERSION,DATA
dc.b '$VER: RemCards_PATCH 1.0 (24.5.97)',0