Copied labels from Sider manual appendix.

Makefile

@@ -1,4 +1,5 @@
 ROM=Xebec-103684C-1986.bin
+AS=asl
 
 all:: install-pt4.asm xebec-c800.asm xebec-iosel.asm
 
@@ -13,3 +14,6 @@ xebec-iosel.bin: $(ROM)
 
 xebec-iosel.asm: xebec-iosel.bin labels.txt entry-iosel.txt data-iosel.txt
 	disasm -o 0xc700 -e entry-iosel.txt -l labels.txt -d data-iosel.txt $< > $@
+
+install-pt4.lst: install-pt4.asm
+	$(AS) -cpu 6502 -L $<

data.txt

@@ -1,7 +1,13 @@
+MNUTBL=0x4bf8.0x4c12/a
+A2MODL=0x851b
 SLOT=0x851c
 DRIVE=0x851d
 BUFFER=0x8776.0x8875
 BUF2=0x8576.0x8675
+OPCODE=0x82de
+OP24BT=0x82df.0x82e1
+OPPRM2=0x82e2
+OPBUF=0x82e4.0x82e5
 IOBTAB=0x82e6
 IOBSLT=0x82e7
 IOBDRV=0x82e8
@@ -19,3 +25,8 @@ IOBSLS=0x82f5
 IOBDLS=0x82f6
 READV=0x78dd
 DEVCTB=0x82f7.0x82fa
+ERR1=0x8526
+ERR2=0x8527
+TRACKS=0x852e
+TRKREM=0x852f
+ERRIO=0x8545

labels.txt

@@ -24,4 +24,22 @@ RESLT2=0x8527
 CLRROM=0xcfff
 SLOTIO=0x7f8
 SLTOFF=0x778
-GETCRD=0xc80c
+RQSENS=0x81de
+DOCMD=0x815a
+DOSASI=0x8157
+ZEROOP=0x81d3
+SNSERR=0x7df4
+DONE=0x807e
+
+BENTRY=0xc800
+PENTRY=0xc803
+DENTRY=0xc806
+SETSLT=0xc80c
+EENTRY=0xc824
+CHKCDE=0xc827
+
+SBOOT=0xc700
+SDOS=0xc711
+SDRIVER=0xc71a
+CHKERR=0xc721
+EECHK=0xc74d