mirror of
https://github.com/freitz85/AppleIISd.git
synced 2024-11-25 17:40:35 +00:00
ProDOS functions moved to separate file
Debug functions removed
This commit is contained in:
Florian Reitz
parent
f656800697
commit
13bfa30227
BIN
AppleIISd.bin
BIN
AppleIISd.bin
Binary file not shown.
@ -18,6 +18,7 @@
|
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<None Include="src\AppleIISd.inc" />
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<None Include="src\AppleIISd.s" />
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<None Include="src\Helper.s" />
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<None Include="src\ProDOS.s" />
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<ProjectGuid>{9EA7EC3D-1771-420F-932F-231A35ED1200}</ProjectGuid>
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@ -16,6 +16,9 @@
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<None Include="src\AppleIISd.inc">
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<Filter>src</Filter>
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</None>
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<None Include="src\ProDOS.s">
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<Filter>src</Filter>
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</None>
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</ItemGroup>
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<ItemGroup>
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<Filter Include="src">
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@ -1,7 +1,8 @@
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;*******************************
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;
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; Apple][Sd Firmware
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; Version 1.0
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; Version 1.1
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; Defines
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;
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; (c) Florian Reitz, 2017
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;
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386
src/AppleIISd.s
386
src/AppleIISd.s
@ -11,19 +11,42 @@
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;
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;*******************************
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.import COMMAND
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.import SDCMD
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.import GETBLOCK
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.import CARDDET
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.import WRPROT
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.import GETR1
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.import GETR3
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.import SDCMD
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.import CARDDET
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.import STATUS
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.import READ
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.import WRITE
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.include "AppleIISd.inc"
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.define DEBUG 0
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; signature bytes
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;*******************************
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;
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; Signature bytes
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;
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; 65535 blocks
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; Removable media
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; Non-interruptable
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; 2 drives
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; Read, write and status allowed
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;
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;*******************************
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.segment "SLOTID"
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.dbyt $FFFF ; 65535 blocks
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.byt $97 ; Status bits
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.byt <DRIVER ; LSB of driver
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;*******************************
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;
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; Bootcode
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;
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; Is executed on boot or PR#
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;
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;*******************************
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.segment "SLOTROM"
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LDX #$20
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@ -32,15 +55,6 @@
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LDX #$3C
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; find slot nr
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.if DEBUG
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LDA #$04
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STA SLOT
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LDA #$C4
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STA CURSLOT
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LDA #$40
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.else
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PHP
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SEI
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LDA #$60 ; opcode for RTS
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@ -56,7 +70,6 @@
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ASL A
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ASL A
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ASL A
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.endif
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STA SLOT16 ; $s0
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TAX ; X holds now SLOT16
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@ -84,61 +97,12 @@
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@INIT: JSR INIT
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;*******************************
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;
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; Install SD card driver
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;
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;*******************************
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.if DEBUG
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; see if slot has a driver already
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LDX $BF31 ; get devcnt
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@INSTALL: LDA $BF32,X ; get a devnum
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AND #$70 ; isolate slot
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CMP SLOT16 ; slot?
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BEQ @INSOUT ; yes, skip it
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DEX
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BPL @INSTALL ; keep up the search
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; restore the devnum to the list
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LDX $BF31 ; get devcnt again
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CPX #$0D ; device table full?
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BNE @INST2
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JSR $FF3A ; bell
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JMP @INSOUT ; do something!
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@INST2: LDA $BF32-1,X ; move all entries down
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STA $BF32,X ; to make room at front
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DEX ; for a new entry
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BNE @INST2
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LDA #$04 ; ProFile type device
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ORA SLOT16
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STA $BF32 ; slot, drive 1 at top of list
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INC $BF31 ; update devcnt
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; now insert the device driver vector
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LDA SLOT
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ASL
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TAX
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LDA #<DRIVER
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STA $BF10,X ; write to driver table
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LDA #>DRIVER
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STA $BF11,X
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@INSOUT: RTS
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;*******************************
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;
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; Boot from SD card
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;
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;*******************************
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.else
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;@BOOT: CMP #0
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; BNE @NEXTSLOT ; init not successful
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@BOOT: LDA #$01
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@ -167,7 +131,6 @@
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JSR READ ; call driver
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LDX SLOT16
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JMP $801 ; goto bootloader
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.endif
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;*******************************
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@ -187,15 +150,6 @@ DRIVER: CLD
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PHA
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LDA CMDHI
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PHA
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.if DEBUG
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LDA #$04
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STA SLOT
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LDA #$C4
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STA CURSLOT
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LDA #$40
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.else
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PHP
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SEI
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LDA #$60 ; opcode for RTS
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@ -211,7 +165,6 @@ DRIVER: CLD
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ASL A
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ASL A
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ASL A
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.endif
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STA SLOT16 ; $s0
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TAX ; X holds now SLOT16
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@ -231,10 +184,6 @@ DRIVER: CLD
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BEQ @READ
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CMP #2
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BEQ @WRITE
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.if DEBUG
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CMP #$FF
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BEQ @TEST
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.endif
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LDA #1 ; unknown command
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SEC
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BRA @RESTZP
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@ -245,10 +194,6 @@ DRIVER: CLD
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BRA @RESTZP
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@WRITE: JSR WRITE
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BRA @RESTZP
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.if DEBUG
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@TEST: JSR TEST ; do device test
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BRA @RESTZP
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.endif
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@INIT: JSR INIT
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BCC @CMD ; init ok
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@ -267,23 +212,6 @@ DRIVER: CLD
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RTS
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;*******************************
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;
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; Signature bytes
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;
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; 65535 blocks
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; Removable media
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; Non-interruptable
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; 2 drives
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; Read, write and status allowed
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;
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;*******************************
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.segment "SLOTID"
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.dbyt $FFFF ; 65535 blocks
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.byt $97 ; Status bits
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.byt <DRIVER ; LSB of driver
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;*******************************
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;
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; Initialize SD card
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@ -437,260 +365,6 @@ INIT: LDA #$03 ; set SPI mode 3
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RTS
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;*******************************
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;
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; Status request
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; $43 Unit number DSSS000
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; $44-45 Unused
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; $46-47 Unused
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;
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; C Clear - No error
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; Set - Error
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; A $00 - No error
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; $2B - Card write protected
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; $2F - No card inserted
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; X - Blocks avail (low byte)
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; Y - Blocks avail (high byte)
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;
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;*******************************
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STATUS: LDA #0 ; no error
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JSR WRPROT
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BCC @DONE
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LDA #$2B ; card write protected
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@DONE: LDX #$FF ; 32 MB partition
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LDY #$FF
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RTS
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;*******************************
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;
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; Read 512 byte block
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; $43 Unit number DSSS0000
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; $44-45 Address (LO/HI) of buffer
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; $46-47 Block number (LO/HI)
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;
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; C Clear - No error
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; Set - Error
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; A $00 - No error
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; $27 - Bad block number
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;
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;*******************************
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READ: JSR GETBLOCK ; calc block address
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LDA SS,X ; enable /CS
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AND #<~SS0
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STA SS,X
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LDA #$51 ; send CMD17
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JSR COMMAND ; send command
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CMP #0
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BNE @ERROR ; check for error
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@GETTOK: LDA #DUMMY ; get data token
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STA DATA,X
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LDA DATA,X ; get response
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CMP #$FE
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BNE @GETTOK ; wait for $FE
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LDA CTRL,X ; enable FRX
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ORA #FRX
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STA CTRL,X
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LDA #DUMMY
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STA DATA,X
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LDY #0
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@LOOP1: LDA DATA,X ; read data from card
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STA (BUFFER),Y
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INY
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BNE @LOOP1
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INC BUFFER+1 ; inc msb on page boundary
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@LOOP2: LDA DATA,X
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STA (BUFFER),Y
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INY
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BNE @LOOP2
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DEC BUFFER+1
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@CRC: LDA DATA,X ; read two bytes crc
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LDA DATA,X ; and ignore
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LDA DATA,X ; read a dummy byte
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LDA CTRL,X ; disable FRX
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AND #<~FRX
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STA CTRL,X
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CLC ; no error
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LDA #0
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@DONE: PHP
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PHA
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LDA SS,X
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ORA #SS0
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STA SS,X ; disable /CS
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PLA
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PLP
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RTS
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@ERROR: SEC ; an error occured
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LDA #$27
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BRA @DONE
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;*******************************
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;
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; Write 512 byte block
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; $43 Unit number DSSS0000
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; $44-45 Address (LO/HI) of buffer
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; $46-47 Block number (LO/HI)
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;
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; C Clear - No error
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; Set - Error
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; A $00 - No error
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; $27 - I/O error or bad block number
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; $2B - Card write protected
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;
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;*******************************
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WRITE: JSR WRPROT
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BCS @WPERROR ; card write protected
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JSR GETBLOCK ; calc block address
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LDA SS,X ; enable /CS
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AND #<~SS0
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STA SS,X
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LDA #$58 ; send CMD24
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JSR COMMAND ; send command
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CMP #0
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BNE @IOERROR ; check for error
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LDA #DUMMY
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STA DATA,X ; send dummy
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LDA #$FE
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STA DATA,X ; send data token
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LDY #0
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@LOOP1: LDA (BUFFER),Y
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STA DATA,X
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INY
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BNE @LOOP1
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INC BUFFER+1
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@LOOP2: LDA (BUFFER),Y
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STA DATA,X
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INY
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BNE @LOOP2
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DEC BUFFER+1
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@CRC: LDA #DUMMY
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STA DATA,X ; send 2 dummy crc bytes
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STA DATA,X
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STA DATA,X ; get data response
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LDA DATA,X
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AND #$1F
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CMP #$05
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BNE @IOERROR ; check for write error
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CLC ; no error
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LDA #0
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|
||||
@DONE: PHP
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||||
PHA
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@WAIT: LDA #DUMMY
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STA DATA,X ; wait for write cycle
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||||
LDA DATA,X ; to complete
|
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BEQ @WAIT
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|
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LDA SS,X ; disable /CS
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ORA #SS0
|
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STA SS,X
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||||
PLA
|
||||
PLP
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RTS
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||||
|
||||
@IOERROR: SEC ; an error occured
|
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LDA #$27
|
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BRA @DONE
|
||||
|
||||
@WPERROR: SEC
|
||||
LDA #$2B
|
||||
BRA @DONE
|
||||
|
||||
|
||||
|
||||
;*******************************
|
||||
;
|
||||
; Test routine
|
||||
;
|
||||
;*******************************
|
||||
|
||||
.if DEBUG
|
||||
TEST: LDA SLOT16
|
||||
PHA
|
||||
LDA SLOT
|
||||
PHA
|
||||
|
||||
; get buffer
|
||||
LDA #2 ; get 512 byte buffer
|
||||
JSR $BEF5 ; call GETBUFR
|
||||
BCS @ERROR
|
||||
STA BUFFER+1
|
||||
STZ BUFFER
|
||||
PLA
|
||||
STA SLOT
|
||||
PLA
|
||||
STA SLOT16
|
||||
|
||||
; fill buffer
|
||||
LDY #0
|
||||
@LOOP: TYA
|
||||
STA (BUFFER),Y
|
||||
INY
|
||||
BNE @LOOP
|
||||
INC BUFFER+1
|
||||
@LOOP1: TYA
|
||||
STA (BUFFER),Y
|
||||
INY
|
||||
BNE @LOOP1
|
||||
DEC BUFFER+1
|
||||
|
||||
STZ BLOCK ; block number
|
||||
STZ BLOCK+1
|
||||
LDX SLOT16
|
||||
|
||||
; write to card
|
||||
JSR WRITE
|
||||
BCS @ERROR
|
||||
|
||||
; read from card
|
||||
JSR READ
|
||||
BCS @ERROR
|
||||
|
||||
; check for errors
|
||||
LDY #0
|
||||
@LOOP2: TYA
|
||||
CMP (BUFFER),Y
|
||||
BNE @ERRCMP ; error in buffer
|
||||
INY
|
||||
BNE @LOOP2
|
||||
INC BUFFER+1
|
||||
@LOOP3: TYA
|
||||
CMP (BUFFER),Y
|
||||
BNE @ERRCMP
|
||||
INY
|
||||
BNE @LOOP3
|
||||
DEC BUFFER+1
|
||||
|
||||
; free buffer
|
||||
JSR $BEF8 ; call FREEBUFR
|
||||
CLC
|
||||
LDA #0
|
||||
RTS
|
||||
|
||||
@ERROR: BRK
|
||||
@ERRCMP: BRK
|
||||
.endif
|
||||
|
||||
|
||||
TEXT: .asciiz " Apple][Sd v1.1 (c)2017 Florian Reitz"
|
||||
|
||||
CMD0: .byt $40, $00, $00
|
||||
|
||||
205
src/ProDOS.s
Normal file
205
src/ProDOS.s
Normal file
@ -0,0 +1,205 @@
|
||||
;*******************************
|
||||
;
|
||||
; Apple][Sd Firmware
|
||||
; Version 1.1
|
||||
; ProDOS functions
|
||||
;
|
||||
; (c) Florian Reitz, 2017
|
||||
;
|
||||
; X register usually contains SLOT16
|
||||
; Y register is used for counting or SLOT
|
||||
;
|
||||
;*******************************
|
||||
|
||||
.export STATUS
|
||||
.export READ
|
||||
.export WRITE
|
||||
|
||||
.import COMMAND
|
||||
.import SDCMD
|
||||
.import GETBLOCK
|
||||
.import WRPROT
|
||||
.import GETR1
|
||||
.import GETR3
|
||||
|
||||
.include "AppleIISd.inc"
|
||||
.segment "EXTROM"
|
||||
|
||||
|
||||
;*******************************
|
||||
;
|
||||
; Status request
|
||||
; $43 Unit number DSSS000
|
||||
; $44-45 Unused
|
||||
; $46-47 Unused
|
||||
;
|
||||
; C Clear - No error
|
||||
; Set - Error
|
||||
; A $00 - No error
|
||||
; $2B - Card write protected
|
||||
; $2F - No card inserted
|
||||
; X - Blocks avail (low byte)
|
||||
; Y - Blocks avail (high byte)
|
||||
;
|
||||
;*******************************
|
||||
|
||||
STATUS: LDA #0 ; no error
|
||||
JSR WRPROT
|
||||
BCC @DONE
|
||||
LDA #$2B ; card write protected
|
||||
|
||||
@DONE: LDX #$FF ; 32 MB partition
|
||||
LDY #$FF
|
||||
RTS
|
||||
|
||||
|
||||
;*******************************
|
||||
;
|
||||
; Read 512 byte block
|
||||
; $43 Unit number DSSS0000
|
||||
; $44-45 Address (LO/HI) of buffer
|
||||
; $46-47 Block number (LO/HI)
|
||||
;
|
||||
; C Clear - No error
|
||||
; Set - Error
|
||||
; A $00 - No error
|
||||
; $27 - Bad block number
|
||||
;
|
||||
;*******************************
|
||||
|
||||
READ: JSR GETBLOCK ; calc block address
|
||||
|
||||
LDA SS,X ; enable /CS
|
||||
AND #<~SS0
|
||||
STA SS,X
|
||||
LDA #$51 ; send CMD17
|
||||
JSR COMMAND ; send command
|
||||
CMP #0
|
||||
BNE @ERROR ; check for error
|
||||
|
||||
@GETTOK: LDA #DUMMY ; get data token
|
||||
STA DATA,X
|
||||
LDA DATA,X ; get response
|
||||
CMP #$FE
|
||||
BNE @GETTOK ; wait for $FE
|
||||
|
||||
LDA CTRL,X ; enable FRX
|
||||
ORA #FRX
|
||||
STA CTRL,X
|
||||
LDA #DUMMY
|
||||
STA DATA,X
|
||||
|
||||
LDY #0
|
||||
@LOOP1: LDA DATA,X ; read data from card
|
||||
STA (BUFFER),Y
|
||||
INY
|
||||
BNE @LOOP1
|
||||
INC BUFFER+1 ; inc msb on page boundary
|
||||
@LOOP2: LDA DATA,X
|
||||
STA (BUFFER),Y
|
||||
INY
|
||||
BNE @LOOP2
|
||||
DEC BUFFER+1
|
||||
|
||||
@CRC: LDA DATA,X ; read two bytes crc
|
||||
LDA DATA,X ; and ignore
|
||||
LDA DATA,X ; read a dummy byte
|
||||
|
||||
LDA CTRL,X ; disable FRX
|
||||
AND #<~FRX
|
||||
STA CTRL,X
|
||||
CLC ; no error
|
||||
LDA #0
|
||||
|
||||
@DONE: PHP
|
||||
PHA
|
||||
LDA SS,X
|
||||
ORA #SS0
|
||||
STA SS,X ; disable /CS
|
||||
PLA
|
||||
PLP
|
||||
RTS
|
||||
|
||||
@ERROR: SEC ; an error occured
|
||||
LDA #$27
|
||||
BRA @DONE
|
||||
|
||||
|
||||
;*******************************
|
||||
;
|
||||
; Write 512 byte block
|
||||
; $43 Unit number DSSS0000
|
||||
; $44-45 Address (LO/HI) of buffer
|
||||
; $46-47 Block number (LO/HI)
|
||||
;
|
||||
; C Clear - No error
|
||||
; Set - Error
|
||||
; A $00 - No error
|
||||
; $27 - I/O error or bad block number
|
||||
; $2B - Card write protected
|
||||
;
|
||||
;*******************************
|
||||
|
||||
WRITE: JSR WRPROT
|
||||
BCS @WPERROR ; card write protected
|
||||
|
||||
JSR GETBLOCK ; calc block address
|
||||
|
||||
LDA SS,X ; enable /CS
|
||||
AND #<~SS0
|
||||
STA SS,X
|
||||
LDA #$58 ; send CMD24
|
||||
JSR COMMAND ; send command
|
||||
CMP #0
|
||||
BNE @IOERROR ; check for error
|
||||
|
||||
LDA #DUMMY
|
||||
STA DATA,X ; send dummy
|
||||
LDA #$FE
|
||||
STA DATA,X ; send data token
|
||||
|
||||
LDY #0
|
||||
@LOOP1: LDA (BUFFER),Y
|
||||
STA DATA,X
|
||||
INY
|
||||
BNE @LOOP1
|
||||
INC BUFFER+1
|
||||
@LOOP2: LDA (BUFFER),Y
|
||||
STA DATA,X
|
||||
INY
|
||||
BNE @LOOP2
|
||||
DEC BUFFER+1
|
||||
|
||||
@CRC: LDA #DUMMY
|
||||
STA DATA,X ; send 2 dummy crc bytes
|
||||
STA DATA,X
|
||||
|
||||
STA DATA,X ; get data response
|
||||
LDA DATA,X
|
||||
AND #$1F
|
||||
CMP #$05
|
||||
BNE @IOERROR ; check for write error
|
||||
CLC ; no error
|
||||
LDA #0
|
||||
|
||||
@DONE: PHP
|
||||
PHA
|
||||
@WAIT: LDA #DUMMY
|
||||
STA DATA,X ; wait for write cycle
|
||||
LDA DATA,X ; to complete
|
||||
BEQ @WAIT
|
||||
|
||||
LDA SS,X ; disable /CS
|
||||
ORA #SS0
|
||||
STA SS,X
|
||||
PLA
|
||||
PLP
|
||||
RTS
|
||||
|
||||
@IOERROR: SEC ; an error occured
|
||||
LDA #$27
|
||||
BRA @DONE
|
||||
|
||||
@WPERROR: SEC
|
||||
LDA #$2B
|
||||
BRA @DONE
|
||||
Loading…
Reference in New Issue
Block a user