A2osX/A2osX.S.QC.txt
2015-12-10 19:53:30 +01:00

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
.OP 65C02
*--------------------------------------
* ****** START OF MLI QUIT CODE ******
* Load Address :$1000-$11FF
* setup $BE00 Global page :
* Copy from $1200 to $BE00
*--------------------------------------
MLIOPEN00.PATH .EQ $200
MLIOPEN00.BUFF .EQ $0C00 1k Buffer for MLI open
MLIREAD00.ADDR .EQ $2000 for loading kernel.bin before moving to LC1
*--------------------------------------
A2osX.QC.B.Start
.PH $1000
*--------------------------------------
A2osX.QC.Start .EQ *
A2osX.QC cld
jmp A2osX.QC.Start1
A2osX.QC.Prefix .BS 32
A2osX.QC.Start1 sei
ldx #$FF
txs
cli
bit RROMBNK1
>LDYAI A2osX.QC
>STYA POWERUP
jsr SETPWRC
ldx #$17
.1 stz MEMTABL,x Reset ProDOS memory bitmap
dex
bpl .1
lda #$CF protect zero page, stack and page 1
sta MEMTABL
lda #$03
sta MEMTABL+$17 protect ProDOS & A2osX global page
lda #$8C Reset 80 col screen ($0C=FF=HOME)
jsr $C300
>LDAXI MSG.STAGE1
jsr A2osX.QC.PrintAX
ldx #0
.2 lda $1200,x Setup Global Page
sta $BE00,x
inx
bne .2
.3 jsr MLI
.DA #MLISETPREFIX
.DA MLISETPREFIX00
bcc .4
>LDAXI MSG.SETPREFIXKO
jsr A2osX.QC.PrintAX
>LDAXI A2osX.QC.Prefix
jsr A2osX.QC.PrintAX
>DEBUGOA
bra .3
.4 >LDAXI MSG.SETPREFIXOK
jsr A2osX.QC.PrintAX
>LDAXI MSG.KLOADING
jsr A2osX.QC.PrintAX
jsr A2osX.QC.KLoad
bcs .9
>LDYAI GO.Reset
>STYA POWERUP
bit RROMBNK1
jsr SETPWRC
>LDAXI MSG.STAGE1OK
jsr A2osX.QC.PrintAX
>DEBUGOA
jmp (POWERUP)
.9 >LDAXI MSG.KLOADING.KO
jsr A2osX.QC.PrintAX
bra *
*--------------------------------------
A2osX.QC.KLoad ldx A2osX.QC.Prefix
.1 lda A2osX.QC.Prefix,x
sta MLIOPEN00.PATH,x
dex
bne .1
ldx A2osX.QC.Prefix
ldy #0
.2 lda SYSKERNEL+1,y
sta MLIOPEN00.PATH+1,x
inx
iny
cpy SYSKERNEL
bne .2
stx MLIOPEN00.PATH
>LDAXI MLIOPEN00.PATH
jsr A2osX.QC.PrintAX
jsr MLI
.DA #MLIOPEN
.DA MLIOPEN00
bcs .9
lda MLIOPEN00+5
sta MLIREAD00+1
sta MLICLOSE00+1
jsr MLI
.DA #MLIREAD
.DA MLIREAD00
bcs .9
jsr MLI
.DA #MLICLOSE
.DA MLICLOSE00
bcs .9
php
sei
sta SETALTZP
lda RRAMWRAMBNK1
lda RRAMWRAMBNK1
>LDYAI MLIREAD00.ADDR+$2F00
>STYA TmpPtr1
>LDYAI $D000+$2F00
>STYA TmpPtr2
ldx #$30
ldy #$F9 do not trash NMI,BRK,IRQ Vectors
.3 lda (TmpPtr1),y
sta (TmpPtr2),y
dey
cpy #$FF
bne .3
dec TmpPtr1+1
dec TmpPtr2+1
dex
bne .3
lda RROMBNK1
sta CLRALTZP
plp
clc
.9 rts
*--------------------------------------
A2osX.QC.PrintAX
>STAX TmpPtr1
lda (TmpPtr1)
tax
beq .9
ldy #1
.1 lda (TmpPtr1),y
ora #$80
jsr COUT
iny
dex
bne .1
.9 jsr CROUT
rts
*--------------------------------------
MLISETPREFIX00 .DA #1
.DA A2osX.QC.Prefix
MLIOPEN00 .DA #3
.DA MLIOPEN00.PATH
.DA MLIOPEN00.BUFF
.BS 1
MLIREAD00 .DA #4
.BS 1
.DA MLIREAD00.ADDR
.DA $2FFA
.BS 2
MLICLOSE00 .DA #1
.BS 1
*--------------------------------------
SYSKERNEL >PSTRING "SYS/KERNEL"
*--------------------------------------
MSG.STAGE1 >PSTRING "A2osX[Stage1]:Init"
MSG.SETPREFIXOK >PSTRING "Set Prefix OK"
MSG.SETPREFIXKO >PSTRING "Insert Vol:"
MSG.KLOADING >PSTRING "Loading Kernel..."
MSG.KLOADING.KO >PSTRING "Error While Loading Kernel."
MSG.STAGE1OK >PSTRING "A2osX[Stage1]:Complete."
*--------------------------------------
.BS $1300-*
.EP
*--------------------------------------
MAN
SAVE A2OSX.S.QC
LOAD A2OSX.S
ASM