mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-29 17:50:18 +00:00
211 lines
4.0 KiB
Plaintext
211 lines
4.0 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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.OP 65C02
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*--------------------------------------
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* ****** START OF MLI QUIT CODE ******
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* Load Address :$1000-$11FF
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* setup $BE00 Global page :
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* Copy from $1200 to $BE00
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*--------------------------------------
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MLIOPEN00.PATH .EQ $200
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MLIOPEN00.BUFF .EQ $0C00 1k Buffer for MLI open
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MLIREAD00.ADDR .EQ $2000 for loading kernel.bin before moving to LC1
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*--------------------------------------
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A2osX.QC.B.Start
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.PH $1000
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*--------------------------------------
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A2osX.QC.Start .EQ *
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A2osX.QC cld
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jmp A2osX.QC.Start1
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A2osX.QC.Prefix .BS 32
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A2osX.QC.Start1 sei
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ldx #$FF
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txs
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cli
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bit RROMBNK1
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>LDYAI A2osX.QC
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>STYA POWERUP
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jsr SETPWRC
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ldx #$17
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.1 stz MEMTABL,x Reset ProDOS memory bitmap
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dex
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bpl .1
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lda #$CF protect zero page, stack and page 1
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sta MEMTABL
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lda #$03
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sta MEMTABL+$17 protect ProDOS & A2osX global page
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lda #$8C Reset 80 col screen ($0C=FF=HOME)
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jsr $C300
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>LDAXI MSG.STAGE1
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jsr A2osX.QC.PrintAX
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ldx #0
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.2 lda $1200,x Setup Global Page
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sta $BE00,x
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inx
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bne .2
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.3 jsr MLI
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.DA #MLISETPREFIX
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.DA MLISETPREFIX00
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bcc .4
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>LDAXI MSG.SETPREFIXKO
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jsr A2osX.QC.PrintAX
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>LDAXI A2osX.QC.Prefix
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jsr A2osX.QC.PrintAX
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>DEBUGOA
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bra .3
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.4 >LDAXI MSG.SETPREFIXOK
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jsr A2osX.QC.PrintAX
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>LDAXI MSG.KLOADING
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jsr A2osX.QC.PrintAX
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jsr A2osX.QC.KLoad
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bcs .9
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>LDYAI GO.Reset
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>STYA POWERUP
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bit RROMBNK1
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jsr SETPWRC
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>LDAXI MSG.STAGE1OK
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jsr A2osX.QC.PrintAX
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>DEBUGOA
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jmp (POWERUP)
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.9 >LDAXI MSG.KLOADING.KO
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jsr A2osX.QC.PrintAX
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bra *
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*--------------------------------------
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A2osX.QC.KLoad ldx A2osX.QC.Prefix
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.1 lda A2osX.QC.Prefix,x
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sta MLIOPEN00.PATH,x
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dex
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bne .1
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ldx A2osX.QC.Prefix
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ldy #0
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.2 lda SYSKERNEL+1,y
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sta MLIOPEN00.PATH+1,x
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inx
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iny
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cpy SYSKERNEL
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bne .2
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stx MLIOPEN00.PATH
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>LDAXI MLIOPEN00.PATH
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jsr A2osX.QC.PrintAX
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jsr MLI
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.DA #MLIOPEN
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.DA MLIOPEN00
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bcs .9
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lda MLIOPEN00+5
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sta MLIREAD00+1
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sta MLICLOSE00+1
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jsr MLI
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.DA #MLIREAD
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.DA MLIREAD00
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bcs .9
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jsr MLI
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.DA #MLICLOSE
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.DA MLICLOSE00
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bcs .9
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php
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sei
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sta SETALTZP
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lda RRAMWRAMBNK1
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lda RRAMWRAMBNK1
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>LDYAI MLIREAD00.ADDR+$2F00
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>STYA TmpPtr1
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>LDYAI $D000+$2F00
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>STYA TmpPtr2
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ldx #$30
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ldy #$F9 do not trash NMI,BRK,IRQ Vectors
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.3 lda (TmpPtr1),y
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sta (TmpPtr2),y
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dey
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cpy #$FF
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bne .3
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dec TmpPtr1+1
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dec TmpPtr2+1
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dex
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bne .3
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lda RROMBNK1
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sta CLRALTZP
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plp
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clc
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.9 rts
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*--------------------------------------
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A2osX.QC.PrintAX
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>STAX TmpPtr1
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lda (TmpPtr1)
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tax
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beq .9
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ldy #1
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.1 lda (TmpPtr1),y
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ora #$80
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jsr COUT
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iny
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dex
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bne .1
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.9 jsr CROUT
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rts
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*--------------------------------------
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MLISETPREFIX00 .DA #1
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.DA A2osX.QC.Prefix
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MLIOPEN00 .DA #3
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.DA MLIOPEN00.PATH
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.DA MLIOPEN00.BUFF
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.BS 1
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MLIREAD00 .DA #4
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.BS 1
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.DA MLIREAD00.ADDR
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.DA $2FFA
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.BS 2
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MLICLOSE00 .DA #1
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.BS 1
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*--------------------------------------
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SYSKERNEL >PSTRING "SYS/KERNEL"
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*--------------------------------------
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MSG.STAGE1 >PSTRING "A2osX[Stage1]:Init"
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MSG.SETPREFIXOK >PSTRING "Set Prefix OK"
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MSG.SETPREFIXKO >PSTRING "Insert Vol:"
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MSG.KLOADING >PSTRING "Loading Kernel..."
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MSG.KLOADING.KO >PSTRING "Error While Loading Kernel."
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MSG.STAGE1OK >PSTRING "A2osX[Stage1]:Complete."
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*--------------------------------------
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.BS $1300-*
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.EP
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*--------------------------------------
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MAN
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SAVE A2OSX.S.QC
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LOAD A2OSX.S
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ASM
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