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AppleIISd
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Boot verified for IIgs, IIe 128k and IIe 64k

This commit is contained in:
Florian Reitz 2017-11-29 01:20:44 +01:00
parent 741624f3b5
commit ab87f81ba8
3 changed files with 84 additions and 94 deletions
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BIN
AppleIISd.bin
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AppleIISd.hex
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@ -1,68 +1,68 @@
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50
AppleIISd.s
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@ -63,13 +63,16 @@ INITED = $80
LDA #$40
.else
PHP
SEI
BIT $CFFF
JSR KNOWNRTS
LDA #$60 ; opcode for RTS
STA SLOT
JSR SLOT
TSX
LDA $0100,X
STA CURSLOT ; $Cs
AND #$0F
PLP
STA SLOT ; $0s
ASL A
ASL A
@ -79,7 +82,7 @@ INITED = $80
STA SLOT16 ; $s0
TAX ; X holds now SLOT16
;BIT $CFFF
BIT $CFFF
JSR CARDDET
BCC @INIT
LDA #$2F ; no card inserted
@ -213,12 +216,16 @@ DRIVER: CLD
LDA #$40
.else
BIT $CFFF
JSR KNOWNRTS ; find slot nr
PHP
SEI
LDA #$60 ; opcode for RTS
STA SLOT
JSR SLOT
TSX
LDA $0100,X
STA CURSLOT ; $Cs
AND #$0F
PLP
STA SLOT ; $0s
ASL A
ASL A
@ -228,11 +235,10 @@ DRIVER: CLD
STA SLOT16 ; $s0
TAX ; X holds now SLOT16
;BIT $CFFF
BIT $CFFF
JSR CARDDET
BCC @INITED
LDA #$2F ; no card inserted
SEC
BRA @RESTZP
@INITED: LDA #INITED ; check for init
@ -240,14 +246,11 @@ DRIVER: CLD
BEQ @INIT
@CMD: LDA DCMD ; get command
CMP #0
BEQ @STATUS
BEQ @STATUS ; branch if cmd is 0
CMP #1
BEQ @READ
CMP #2
BEQ @WRITE
CMP #3
BEQ @FORMAT
.ifdef DEBUG
CMP #$FF
BEQ @TEST
@ -262,12 +265,11 @@ DRIVER: CLD
BRA @RESTZP
@WRITE: JSR WRITE
BRA @RESTZP
@FORMAT: JSR FORMAT
BRA @RESTZP
.ifdef DEBUG
@TEST: JSR TEST ; do device test
BRA @RESTZP
.endif
@INIT: JSR INIT
BCC @CMD ; init ok
@ -288,8 +290,8 @@ DRIVER: CLD
; Signature bytes
.segment "SLOTID"
.dbyt $FFFF ; 65535 blocks
.byt $87 ; Status bits
.dbyt $FFFF ; 65535 blocks
.byt $97 ; Status bits
.byt <DRIVER ; LSB of driver
;*******************************
@ -305,8 +307,7 @@ DRIVER: CLD
;*******************************
.segment "EXTROM"
INIT: CLD
LDA #$03 ; set SPI mode 3
INIT: LDA #$03 ; set SPI mode 3
STA CTRL,X
LDA SS,X
ORA #SS0 ; set CS high
@ -417,6 +418,7 @@ INIT: CLD
CLC ; all ok
LDY #0
BCC @END1
@IOERROR: SEC
LDY #$27 ; init error
@END1: LDA SS,X ; set CS high
@ -527,7 +529,7 @@ GETBLOCK: PHX ; save X
STA R30,X
LDA #$80 ; drive number
BIT $43
AND $43
BEQ @SDHC ; D1
LDA #1 ; D2
STA R31,X
@ -792,18 +794,6 @@ WRITE: JSR WRPROT
;*******************************
;
; Format
; not supported!
;
;*******************************
FORMAT: SEC
LDA #$01 ; invalid command
KNOWNRTS: RTS
;*******************************
;
; Test routine