Hello Guys,
I sent you, 2 source programm in assembler for make interrupt time Z80 for
work with sound effect in assembler MSX.
But it unfortunately doesn't work, it is not interrupt time, then is not good
for MSX BASIC!!
Can you help me? Please? Please? ^_^
I hope than you have free time for make this litte work for me, OK??
You remember, than I job with CHAOS ASSEMBLER for Windows.
See you to soon.....
Andrea Gasparrini from Italy
; [YOUR GROUP] MSX Z80 source file.
;
; Prog:
; Code: [YOUR HANDLE]
; Date:
;
; cmnt:
;
; Coded in TeddyWareZ' Chaos Assembler 3
;
; (C) 2001 [YOUR GROUP]!
.org $B000 - 7
.db $fe
.dw startProgram,endProgram,startProgram
startProgram:
;*************************************************************
; List 2.4 How to use HOOK safety
; This routine uses TIMER INTERRUPT HOOK
; and turn on/off CAPS LOCK
; To start, do DEF USR=&HB000 : A=USR(0)
; To end, do DEF USR=&HB030 : A=USR(0)
;*************************************************************
;
CHGCAP .EQU 0132H ;CAPS LAMP on/off
CAPST .EQU 0FCABH ;CAPS LOCK status
TIMI .EQU 0FD9FH ;timer interrupt hook
JPCODE .EQU 0C3H
TIMER .EQU 020H
;----- interrupt on ----- Note: restore the former hook
;when changing the hook
CALL START ; load and initialize STAR MUSIC
.ORG $B020 ; CONTINUE MUSIC
INTON:
DI
LD HL,TIMI ;OLD HOOK SAVE
LD DE,HKSAVE
LD BC,5
LDIR
LD A,JPCODE ;NEW HOOK SET
LD (TIMI),A
LD HL,INT
LD (TIMI+1),HL
EI
RET
.ORG $B050 ; PAUSE MUSIC
;----- interrupt off ----- Note: restore the reserved hook and exit
INTOFF:
DI
LD HL,HKSAVE
LD DE,TIMI
LD BC,5
LDIR
EI
CALL $90 ; resetta canale audio
RET
;----- interrupt routine -----
INT: PUSH AF
LD A,(CAPST)
OR A
JR Z,CAPON
CAPOFF:
; silence
CAPON:
; play 1 quark
FIN:
POP AF
CALL HKSAVE ;old HOOK call
RET
COUNT1:
.DB TIMER
COUNT2:
.DB TIMER
HKSAVE:
NOP ;old HOOK save area
NOP
NOP
NOP
RET
;----- interrupt routine -----
#INCLUDE "bomba2.asm"
endProgram:
.end
start:
LD A,7
LD E,254
CALL 147
LD A,8
LD E,15
CALL 147
LD E,40
CICLO:
LD A,0
CALL 147
LD A,10
RITARDO:
PUSH AF
LD A,255
MENO:
DEC A
JP NZ,MENO
POP AF
DEC A
JP NZ,RITARDO
LD A,E
SUB 150
JP Z,NEXT
ADD A,151
LD E,A
JP CICLO
NEXT:
LD A,0
LD E,0
CALL 147
LD A,7
LD E,247
CALL 147
LD A,0
NEXT1:
PUSH AF
LD E,A
CALL 147
LD A,50
PIPPO:
PUSH AF
LD A,255
PLUTO:
DEC A
JP NZ,PLUTO
POP AF
DEC A
JP NZ,PIPPO
POP AF
SUB 31
JP Z,RITA
ADD A,32
JP NEXT1
RITA:
LD A,100
RITA1:
PUSH AF
LD A,255
RITA2:
DEC A
JP NZ,RITA2
POP AF
DEC A
JP NZ,RITA1
LD A,7
LD E,255
CALL 147
RET
end:
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