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Turnbull China Bikeride
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01Init
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1995-08-26
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2KB
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57 lines
;
; Title : Wimp Task Init.
; System : Wimp Library
; Version : 1.1
; Copyright : (C) John Winters
; Date : 12th January, 1990
; Author : John H. Winters
;
; Function : Initialises the Wimp to multi-task.
;
;
; Modification history.
;
; Version : (Reflect in header IDENT)
; Date :
; Author :
; Changes :
;
;
;============================================================================
;
; Include files.
;
;============================================================================
;
GET ^.h.regdefs
GET ^.h.swinos
GET ^.h.macros
;
;============================================================================
;
; Code.
;
;============================================================================
;
PREAMBLE
STARTCODE Wimp_Initialise
;
STMFD sp!, {v1, v2, lr}
MOV v1, a3 ; R4 is ptr to taskhandle int
MOV a3, a2 ; R2 is ptr to taskname
MOV v2, a1 ; R5 is ptr to version int
LDR a1, [v2, #0] ; R0 is version int
LDR a2, DATA
; Added by PColmer:
; optional parameter for RISC OS 3, R3 is ptr to list of msgs (reg a4)
SWI SWI_Wimp_Initialise + XOS_Bit
STRVC a1, [v2, #0] ; return found version
STRVC a2, [v1, #0] ; return task handle
MOVVC a1, #0
LDMFD sp!, {v1, v2, pc}^
DATA
DCB "TASK"
;
END