Macintosh-SW/NetBoot
1
0
Fork 0
mirror of https://github.com/elliotnunn/NetBoot.git synced 2024-12-30 06:29:52 +00:00
Code Issues Projects Releases Wiki Activity

Up to the point where I get stuck in AccessBT

Browse Source
This commit is contained in:
Elliot Nunn 2020-07-04 13:53:21 +08:00
parent 9d4022b833
commit ebe262e429
30 changed files with 707 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
IM-D ParamBlock diagram Normal file
View File

@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>URL</key>
<string>http://mirror.informatimago.com/next/developer.apple.com/documentation/mac/Devices/Devices-13.html</string>
</dict>
</plist>

684
NetBoot.py
View File

@ -4,8 +4,464 @@
# Adapted from: http://chaos.weblogs.us/archives/164
import socket
import os
from os import path
import struct
ANY = "0.0.0.0"
import time
# ; the below code might come in handy later on, when we support executable boot blocks.
# CodeToUncorruptTheBootBlocks:
# move.l (SP),A1
# sub.l #8,A1 ; What will be the start address of the boot blocks??
# lea BigDiskImage,A0
# move.l #1024,D0
# dc.w 0xA02E ; BlockMove
# sub.l #6,(SP) ; Re-run the code that called us; it will be real boot blocks now!
# rts
my_unique_ltoudp_id = b'El' + (os.getpid() & 0xFFFF).to_bytes(2, 'big')
disk_image = open(path.join(path.dirname(path.abspath(__file__)), 'systools607.dsk'), 'rb').read()
def assemble(the_code):
with open('/tmp/vasm.bootblocks', 'w') as f:
f.write(the_code)
assembler = path.join(path.dirname(path.abspath(__file__)), 'vasm-1/vasmm68k_mot')
os.system(f'{assembler} -quiet -Fbin -pic -o /tmp/vasm.bootblocks.bin /tmp/vasm.bootblocks')
with open('/tmp/vasm.bootblocks.bin', 'rb') as f:
return f.read()
# typedef short (*j_code)( short command, # SP+4 (sign-extend to long)
# DGlobals *g, # SP+8
# int **var1, # SP+12
# int **var2); # SP+16
# We return our OSErr in d0, and leave the 16 bytes of arguments on the stack for the caller to clean
image = assemble(f'''
myUnitNum equ 52
myDRefNum equ ~myUnitNum
cmp.l #1,4(SP)
beq getBootBlocks
cmp.l #2,4(SP)
beq getSysVol
cmp.l #3,4(SP)
beq mountSysVol
move.l #-1,d0
rts
getBootBlocks
lea DiskImage,A0
move.l 8(SP),A1 ; Inside the global struct...
add.l #$BA,A1 ; ...is an element for the structured part of the boot blocks
move.l #138,D0 ; ...of this length
dc.w $A02E ; BlockMove
bra return
getSysVol
; Our register conventions:
; A2 = fake dqe; A3 = dce; A4 = copied driver
link A6,#-$32
movem.l A2-A4/D3,-(SP)
; Now I copy all this stuff under BufPtr (because this current location will disappear)
sub.l #(BufPtrCopyEnd-BufPtrCopy),$10C ; BufPtr
move.l $10C,A4 ; ... into A4
; Copy the driver and image as one chunk
lea BufPtrCopy,A0
move.l A4,A1
move.l #(BufPtrCopyEnd-BufPtrCopy),D0
dc.w $A02E ; BlockMove
; Install the driver in the unit table
move.l #myDRefNum,D0
dc.w $A43D ; _DrvrInstall ReserveMem
bne error
; Get DCE handle of installed driver
move.l $11C,A0 ; UTableBase
add.l #myUnitNum*4,A0
move.l (A0),A3
; Lock it down
move.l A3,A0
dc.w $A029 ; _HLock
; Populate the empty DCE that DrvrInstall left us
move.l (A3),A0 ; A0 = dce ptr
move.l A4,0(A0) ; dCtlDriver is pointer (not hdl)
move.w 0(A4),D0 ; drvrFlags
and.w #~$0040,D0 ; Clear dRAMBased bit (to treat dCtlDriver as a pointer)
move.w D0,4(A0) ; dCtlFlags
; Copy these other values that apparently the Device Mgr forgets
move.w 2(A4),$22(A0) ; drvrDelay to dCtlDelay
move.w 4(A4),$24(A0) ; drvrEMask to dCtlEMask
move.w 6(A4),$26(A0) ; drvrMenu to dCtlMenu
; Open the driver
lea -$32(A6),A0
bsr clearblock
lea DrvrNameString,A1
move.l A1,$12(A0) ; IOFileName
dc.w $A000 ; _Open
bne error
; Attempt to read from the driver
; lea -$32(A6),A0
; bsr clearblock
; move.w #myDRefNum,$18(A0) ; ioRefNum
; move.l #$200,$24(A0) ; ioByteCount
; dc.w $A002
; bne error
; Create a DQE
move.l #$16,D0
dc.w $A71E ; _NewPtr ,Sys,Clear
add.l #4,A0 ; has some cheeky flags at negative offset
move.l A0,A2
; Point our caller to the fake dqe
move.l 4+12(A6),A1
move.l A2,(A1)
; Find a free drive number (nicked this code from BootUtils.a:AddMyDrive)
LEA $308,A0 ; [DrvQHdr]
MOVEQ #4,D3 ; start with drive number 4
CheckDrvNum
MOVE.L 2(A0),A1 ; [qHead] start with first drive
CheckDrv
CMP.W 6(A1),D3 ; [dqDrive] does this drive already have our number?
BEQ.S NextDrvNum ; yep, bump the number and try again.
CMP.L 6(A0),A1 ; [qTail] no, are we at the end of the queue?
BEQ.S GotDrvNum ; if yes, our number's unique! Go use it.
MOVE.L 0(A1),A1 ; [qLink] point to next queue element
BRA.S CheckDrv ; go check it.
NextDrvNum
; this drive number is taken, pick another
ADDQ.W #1,D3 ; bump to next possible drive number
BRA.S CheckDrvNum ; try the new number
GotDrvNum
; Populate the DQE
move.l #$80080000,-4(A2) ; secret flags, see http://mirror.informatimago.com/next/developer.apple.com/documentation/mac/Files/Files-112.html
move.w #1,4(A2) ; qType
move.w #(DiskImageEnd-DiskImage)&$FFFF,$C(A2) ; dQDrvSz
move.w #(DiskImageEnd-DiskImage)>>16,$E(A2) ; dQDrvSz2
move.w #0,$A(A2) ; dQFSID should be for a native fs
; Into the drive queue (which will further populate the DQE)
move.l A2,A0 ; A0 = DQE ptr
move.w D3,D0
swap.w D0 ; D0.H = drive number
move.w #myDRefNum,D0 ; D0.L = driver refnum
dc.w $A04E ; _AddDrive
bne error
; Save this most precious knowledge for later
lea gDriveNum,A0
move.w D3,(A0)
; Clean up our stack frame
movem.l (SP)+,A2-A4/D3
unlk A6
bra return
mountSysVol
link A6,#-$32
movem.l A2-A4/D3,-(SP)
lea gDriveNum,A0
move.w (A0),D3
; Make our call able to work! (Fuck, this is ugly)
lea NaughtyFSQHSave,A0
move.l $3E2,(A0)
lea NaughtyFSQHKiller,A0
move.l A0,$3E2 ; Disable FSQueueSync
; Try to mount the volume!
lea -$32(A6),A0
bsr clearblock
; FSQueue ourself!
; move.w #$A00F,D1
; move.l $2AE,A1 ; ROMBase
; add.l #$42E8,A1
; jsr (A1)
; MountVol and pray
move.w #7,$16(A0) ; ioVRefNum = ioDrvNum = the drive number
dc.w $A00F ; _MountVol
; Tell Elliot that we made it through
move.w #$1234,D0
dc.w $a9c9
movem.l (SP)+,A2-A4/D3
unlk A6
bra return
return
move.l #0,d0
rts
error
move.w #$DDDD,D0
dc.w $A9C9
clearblock
clr.w $0(A0)
clr.w $2(A0)
clr.w $4(A0)
clr.w $6(A0)
clr.w $8(A0)
clr.w $a(A0)
clr.w $c(A0)
clr.w $e(A0)
clr.w $10(A0)
clr.w $12(A0)
clr.w $14(A0)
clr.w $16(A0)
clr.w $18(A0)
clr.w $1a(A0)
clr.w $1c(A0)
clr.w $1e(A0)
clr.w $20(A0)
clr.w $22(A0)
clr.w $24(A0)
clr.w $26(A0)
clr.w $28(A0)
clr.w $2a(A0)
clr.w $2c(A0)
clr.w $2e(A0)
clr.w $30(A0)
rts
NaughtyFSQHSave
dc.l 0
NaughtyFSQHKiller
move.l A0,-(SP)
lea NaughtyFSQHSave,A0
move.l (A0),$3E2
move.l (SP)+,A0
add.l #4,SP
rts
DrvrNameString
dc.b 11, ".netRamDisk"
gDriveNum
dc.w 0
; code on this side is for start only, and stays in the netBOOT driver globals until released
BufPtrCopy
; code on this side gets copied beneath BufPtr (is that the best place??)
; Shall we start with a driver?
DrvrBase
dc.w $4F00 ; dReadEnable dWritEnable dCtlEnable dStatEnable dNeedLock
dc.w 0 ; delay
dc.w 0 ; evt mask
dc.w 0 ; menu
dc.w DrvrOpen-DrvrBase
dc.w DrvrPrime-DrvrBase
dc.w DrvrControl-DrvrBase
dc.w DrvrStatus-DrvrBase
dc.w DrvrClose-DrvrBase
dc.b 11, ".netRamDisk"
; a0=iopb, a1=dce on entry to all of these...
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
DrvrOpen
move.w #0,$10(A0) ; ioResult
rts
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
DrvrPrime
movem.l A0-A4/D0-D4,-(SP)
move.l A0,A2 ; ParamBlk
move.l A1,A3 ; DCE
cmp.b #2,$7(A2) ; ioTrap == aRdCmd
bne.s notRead
; D0 = number of bytes to read
move.l $24(A2),D0 ; ioReqCount
move.l D0,$28(A2) ; -> ioActCount
; D1 = source offset
clr.l D1
cmp.b #1,$2C(A2) ; ? ioPosMode == fsFromStart
beq.s dontAddMark
add.l $10(A3),D1 ; add dCtlPosition
dontAddMark
cmp.b #3,$2C(A2) ; ? ioPosMode == fsFromMark
bne.s dontAddOffset
add.l $2E(A2),D1 ; add ioPosOffset
dontAddOffset
; Advance the pointer
move.l D0,D2
add.l D1,D2 ; calculate new position
move.l D2,$10(A3) ; -> dCtlPosition
move.l D2,$2E(A2) ; -> ioPosOffset
; Do the dirty
lea DiskImage,A0
add.l D1,A0
move.l $20(A2),A1 ; ioBuffer
dc.w $A02E ; BlockMove
move.w #0,$10(A2) ; ioResult
bra primeFinish
notRead
move.w #$2222,D0
dc.w $A9C9
cmp.b #3,7(A0) ; ioTrap == aRdCmd
primeFinish
movem.l (SP)+,A0-A4/D0-D4
bra DrvrFinish
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
DrvrControl
move.w #$2222,D0
dc.w $A9C9
move.w #0,$10(A0) ; ioResult
bra DrvrFinish
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
DrvrStatus
cmp.w #6,$1A(A0)
beq.s status_fmtLstCode
cmp.w #8,$1A(A0)
beq.s status_drvStsCode
bra.s status_unknown
status_fmtLstCode ; tell them about our size
move.l A2,-(SP)
move.w #1,$1C(A0)
move.w $1C+4(A0),A2
move.l #(DiskImageEnd-DiskImage),0(A2)
move.l #$40000000,4(A2)
move.l (SP)+,A2
move.w #0,$10(A0) ; ioResult = statusErr
bra DrvrFinish
status_drvStsCode ; tell them about some of our flags
move.w #0,$1C(A0) ; csParam[0..1] = track no (0)
move.l #80080000,$1C+2(A0) ; csParam[2..5] = same flags as dqe
move.w #0,$10(A0) ; ioResult = noErr
bra DrvrFinish
status_unknown
move.w $1A(A0),D0 ; dodgy, for debugging
add.w #$3000,D0
dc.w $A9C9
move.w #-18,$10(A0) ; ioResult
bra DrvrFinish
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
DrvrClose
move.w #$4444,D0
dc.w $A9C9
move.w #0,$10(A0) ; ioResult
rts
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
DrvrFinish
move.w 6(A0),D1 ; iopb.ioTrap
btst #9,D1 ; noQueueBit
bne.s DrvrNoIoDone
move.l $8FC,-(SP) ; jIODone
DrvrNoIoDone
rts
DiskImage {chr(10).join(' dc.b ' + str(x) for x in disk_image)}
DiskImageEnd
BufPtrCopyEnd
''')
image = image.ljust(512*20)
ANY = "0.0.0.0"
MCAST_ADDR = "239.192.76.84"
MCAST_PORT = 1954
@ -25,15 +481,223 @@ status = sock.setsockopt(socket.IPPROTO_IP,
socket.IP_ADD_MEMBERSHIP,
socket.inet_aton(MCAST_ADDR) + socket.inet_aton(ANY))
# setblocking(0) is equiv to settimeout(0.0) which means we poll the socket.
# But this will raise an error if recv() or send() can't immediately find or send data.
# sock.setblocking(0)
# Wrap up in all sorts of crap...
def mk_ddp(dest_node, dest_socket, src_node, src_socket, proto_type, data):
# Wrap into DDP datagram
data = struct.pack('>HBBB', len(data) + 5, dest_socket, src_socket, proto_type) + data
# Wrap into LLAP packet
data = struct.pack('>BBB', dest_node, src_node, 1) + data
# Wrap the novel LToUDP header
data = my_unique_ltoudp_id + data
return data
def pstring(x):
try:
x = x.encode('mac_roman')
except AttributeError:
pass
return bytes([len(x)]) + x
while 1:
try:
data, addr = sock.recvfrom(1024)
except socket.error as e:
pass
data, addr = sock.recvfrom(1024)
# Okay... LToUDP parsing here. Let's start with the LLAP packet.
# Man, chaining protocols is hard. This will inevitably require a rewrite.
# Be careful to keep this as one cascading thing...
if len(data) < 4: continue
if data.startswith(my_unique_ltoudp_id): continue
data = data[4:] # Trim down to LLAP packet (not "frame")
if len(data) < 3: continue
llap_dest_node = data[0]
llap_src_node = data[1]
llap_proto_type = data[2]
data = data[3:] # Trim down to LLAP payload
# Try to extract a DDP header, which is all we want!
if llap_proto_type == 1:
# ddp, short
if len(data) < 5: continue
ddp_len, ddp_dest_socket, ddp_src_socket, ddp_proto_type = struct.unpack_from('>HBBB', data)
data = data[5:ddp_len]
elif llap_proto_type == 2:
# ddp, long (what should we do with this extra information?)
if len(data) < 13: continue
ddp_len, ddp_cksum, ddp_dest_net, ddp_src_net, ddp_dest_node, ddp_src_node, ddp_dest_socket, ddp_src_socket = struct.unpack_from('>4H5B', data)
ddp_hop_count = (ddp_len >> 10) & 0xF
ddp_len &= 0x3FF
data = data[13:ddp_len]
else:
print("From: ", addr)
print("Data: ", data)
# llap control packet -- can probably ignore!
continue
print(f'datagram {llap_src_node}:{ddp_src_socket}->{llap_dest_node}:{ddp_dest_socket}', end=' ')
if ddp_proto_type == 2:
# Name Binding Protocol
if len(data) < 2: continue
nbp_func = data[0] >> 4
nbp_tuple_cnt = data[0] & 0xF
nbp_id = data[1]
data = data[2:]
nbp_tuples = []
while data and len(nbp_tuples) < nbp_tuple_cnt:
if len(data) < 5: break
this_tuple = list(struct.unpack_from('>HBBB', data))
data = data[5:]
for i in range(3):
# This should be coded more defensively, perhaps using exceptions
this_tuple.append(data[1:1+data[0]].decode('mac_roman'))
data = data[1+data[0]:]
nbp_tuples.append(tuple(this_tuple))
print('nbp func', nbp_func, 'id', nbp_id)
for t in nbp_tuples:
print(f' net:node:sock={t[0]}:{t[1]}:{t[2]} enum={t[3]} object:type@zone={t[4]}:{t[5]}@{t[6]}')
if nbp_func == 2:
# NBP LkUp
if len(nbp_tuples) == 1 and nbp_tuples[0][5] == 'BootServer': # Looking for us
sock.sendto(mk_ddp(
dest_node=llap_src_node, dest_socket=ddp_src_socket,
src_node=99, src_socket=99,
proto_type=2,
data=bytes([0x31, nbp_id]) + # 3=LkUp-Reply, 1=number-of-tuples
struct.pack('>HBBB', # Pack the first tuple
0, # (My) Network number
99, # (My) Node ID
99, # (My) Socket number
0, # (My) Enumerator (i.e. which of many possible names for 99/99 is this?)
) +
pstring(nbp_tuples[0][5]) + pstring('BootServer') + pstring('*')
),
(MCAST_ADDR, MCAST_PORT))
elif ddp_proto_type == 10:
# Mysterious ATBOOT protocol
if len(data) < 2: continue
boot_type, boot_vers = struct.unpack_from('>BB', data)
data = data[2:]
# rbNullCommand EQU 0 ; ignore this one
# rbMapUser EQU 1 ; user record request
# rbUserReply EQU 2 ; user record reply
# rbImageRequest EQU 3 ; image request & bitmap
# rbImageData EQU 4 ; image data
# rbImageDone EQU 5 ; server done with current image
# rbUserRecordUpdate EQU 6 ; new user info to server
# rbUserRecordAck EQU 7 ; info received from server
if boot_type == 1:
# It might be neater to trim off the "type" and "version" fields a bit earlier
boot_machine_id, boot_timestamp, boot_username = struct.unpack_from('>HL 34p', data)
print(f'atboot type={boot_type}, vers={boot_vers}, machineID={boot_machine_id}, userName={boot_username}')
# // This defines a user record.
# // Some of these fields can be determined on the fly by the boot server,
# // while others are stored on disk by the boot server
# typedef struct
# {
# char serverName[serverNameLength]; // server name to boot off of
# char serverZone[zoneNameLength]; // and the zone it lives in
# char serverVol[volNameLength]; // the volume name
# short serverAuthMeth; // authentication method to use (none, clear txt, rand)
# unsigned long sharedSysDirID; // dir id of shared system folder
# unsigned long userDirID; // dir id of the user's private system folder
# unsigned long finderInfo[8]; // blessed folder dir id, startup folder dir id etc...
# unsigned char bootBlocks[138]; // see Inside Mac V-135
# unsigned short bootFlag; // server based flags
# unsigned char pad[306-18]; // <pd 5>pad to ddpMaxData
# }userRecord;
# // This defines the user record reply sent to workstations.
# typedef struct
# {
# unsigned char Command; /* record or image request command word */
# unsigned char pversion; /* version of boot protocol spoken by requestor */
# unsigned short osID; /* type and version of os */
# unsigned int userData; /* time stamp goes here */
# unsigned short blockSize; /* size of blocks we will send */
# unsigned short imageID; /* image ID */
# short result; /* error codes */
# unsigned int imageSize; /* size of image in blocks */
# userRecord userRec; /* tell user where to go */
# }BootPktRply;
# Ignore the silly user record. Just make the fucker work!
sock.sendto(mk_ddp(
dest_node=llap_src_node, dest_socket=ddp_src_socket,
src_node=99, src_socket=99,
proto_type=10,
data=struct.pack('>BBHLHHhL', 2, 1, boot_machine_id, boot_timestamp, 512, 0, 0, len(image) // 512).ljust(586, b'\0')
),
(MCAST_ADDR, MCAST_PORT))
elif boot_type == 3:
# It seems to want part of the boot image!
# print('it wants data', data)
# typedef struct
# {
# unsigned short imageID; /* */
# unsigned char section; /* "section" of the image the bitmap refers to */
# unsigned char flags; /* ??? */
# unsigned short replyDelay;
# unsigned char bitmap[512]; /* bitmap of the section of the image requested */
# }bir; // Boot Image Req
print('Boot Image Req')
if len(data) < 6: continue
boot_image_id, boot_section, boot_flags, boot_reply_delay = struct.unpack_from('>HBBH', data)
data = data[6:]
# Okay, pretty much just send the bits that were requested!
print('Sending blocks')
for blocknum in range(len(image) // 512):
if len(data) > blocknum // 8 and (data[blocknum // 8] >> (blocknum % 8)) & 1:
# typedef struct {
# unsigned char packetType; /* The command number */
# unsigned char packetVersion; /* Protocol version number */
# unsigned short packetImage; /* The image this block belongs to */
# unsigned short packetBlockNo; /* The block of the image (starts with 1) */
# unsigned char packetData[512];/* the data portion of the packet */
# } BootBlock,*BootBlockPtr;
# print(f' {blocknum}', end='', flush=True)
sock.sendto(mk_ddp(
dest_node=llap_src_node, dest_socket=ddp_src_socket,
src_node=99, src_socket=99,
proto_type=10,
data=struct.pack('>BBHH', 4, 1, boot_image_id, blocknum) + image[blocknum*512:blocknum*512+512]
),
(MCAST_ADDR, MCAST_PORT))
# time.sleep(0.5)
# break # wait for another request, you mofo!
elif boot_type > 4:
print(f'protocol10 type={boot_type} vers={boot_vers} contents={repr(data)}')
else:
print('unknown ddp payload', ddp_proto_type)

5
doeverything.bash Executable file
View File

@ -0,0 +1,5 @@
#!/bin/bash
trap "trap - SIGTERM && kill -- -$$" SIGINT SIGTERM EXIT
./NetBoot.py & cp xo.rom edit.rom && ./xo-rom-enable-netboot.py edit.rom && Mini\ vMac\ Classic.app/Contents/MacOS/minivmac edit.rom && kill %1

BIN
systools607.dsk Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_atom.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_cond.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_cpu.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_dwarf.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_error.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_expr.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_hugeint.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_osdep.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_aout.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_bin.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_elf.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_hunk.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_srec.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_test.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_tos.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_vobj.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_output_xfile.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_parse.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_reloc.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_supp.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_symbol.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_symtab.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_syntax.o Normal file
View File

Binary file not shown.

BIN
vasm-1/obj/m68k_mot_vasm.o Normal file
View File

Binary file not shown.

BIN
vasm-1/vasmm68k_mot Executable file
View File

Binary file not shown.

25
xo-rom-enable-netboot.py
View File

@ -34,7 +34,7 @@ with open(sys.argv[1], 'r+b') as f:
garbage_location = 0x67046 # The MacsBug copyright string in the ROM Disk
# Make out own structure, as adapted from NetBoot.h
the_netboot_structure = struct.pack('>BBBB BB 8s 32s 8s H',
the_netboot_structure = struct.pack('>BBBB BB 16s 32s 8s H', # Note that "int"s are 4 bytes, somehow!
# First 4 bytes at PRAM+4
1, # char osType; /* preferred os to boot from */
1, # char protocol; /* preferred protocol to boot from */
@ -44,12 +44,16 @@ with open(sys.argv[1], 'r+b') as f:
# Now, the AppleTalk-protocol-specific part
0, # unsigned char nbpVars; /* address of last server that we booted off of */
0, # unsigned char timeout; /* seconds to wait for bootserver response */
b'', # unsigned int signature[4]; /* image signature */
b'', # unsigned int signature[4]; /* image signature */ Elliot notes: zeroes match anything!
b'Elliot', # char userName[31]; /* an array of char, no length byte */
b'volapuk', # char password[8]; /* '' */
0x7777, # short serverNum; /* the server number */
0xBABE, # short serverNum; /* the server number */
).ljust(72, b'\0')
# the_netboot_structure = bytearray(the_netboot_structure)
# for i, j in enumerate(range(54, len(the_netboot_structure))):
# the_netboot_structure[j] = i
# This is the guts of the NetBoot ReadPRAM procedure
f.seek(0x1DF08)
write_asm(f, f'''
@ -64,6 +68,17 @@ with open(sys.argv[1], 'r+b') as f:
f.seek(garbage_location)
f.write(the_netboot_structure)
# Do the dodgy... cancel signature validation!
f.seek(0x21A84)
while f.tell() < 0x21A98:
f.write(b'Nq') # nop
# Work around Mini vMac's cutesy many-drives hack (it steals out preferred drivenum of 4 from us)
f.seek(0x1DF51) # AddMyDrive: moveq #4,d9
f.write(b'\x10')
f.seek(0x1DFDF) # myExtFSFilter: cmp.w #4,d0
f.write(b'\x10')
# Enable this to make a SysError, for rudimentaly debug output
# f.seek(0x1DD4E)
# f.write(b'\xA9\xC9')
f.seek(0x878C)
f.write(assemble('move.w #0xFFFF,D0 \n .2byte 0xA9C9'))