Merge pull request #21 from ivop/master

Atari 800 XL/XE Port

.gitignore

@@ -0,0 +1,11 @@
+*~
+.obj
+apple2e.po
+atari800.atr
+atari800hd.atr
+bbcmicro.ssd
+bin
+c64.d64
+pet.d64
+vic20.d64
+x16.zip

Makefile

@@ -13,14 +13,33 @@ APPS = \
 	$(OBJDIR)/asm.com \
 	$(OBJDIR)/apps/bedit.com \
 	$(OBJDIR)/apps/dump.com \
+	$(OBJDIR)/apps/dinfo.com \
+	$(OBJDIR)/apps/cls.com \
+	$(OBJDIR)/apps/ls.com \
 	$(OBJDIR)/apps/capsdrv.com \
 	apps/bedit.asm \
 	apps/dump.asm \
+	apps/dinfo.asm \
+	apps/cls.asm \
+	apps/ls.asm \
 	cpmfs/asm.txt \
 	cpmfs/bedit.txt \
 	cpmfs/demo.sub \
 	cpmfs/hello.asm \
 
+MINIMAL_APPS = \
+	$(OBJDIR)/submit.com \
+	$(OBJDIR)/stat.com \
+	$(OBJDIR)/copy.com \
+	$(OBJDIR)/asm.com \
+	$(OBJDIR)/apps/bedit.com \
+	$(OBJDIR)/apps/dump.com \
+	$(OBJDIR)/apps/dinfo.com \
+	$(OBJDIR)/apps/cls.com \
+	$(OBJDIR)/apps/ls.com \
+	$(OBJDIR)/apps/capsdrv.com \
+	apps/dump.asm \
+
 LIBCPM_OBJS = \
 	$(OBJDIR)/lib/printi.o \
 	$(OBJDIR)/lib/bdos.o \
@@ -41,7 +60,7 @@ CPMEMU_OBJS = \
 	$(OBJDIR)/tools/cpmemu/biosbdos.o \
 	$(OBJDIR)/third_party/lib6502/lib6502.o \
 
-all: apple2e.po c64.d64 bbcmicro.ssd x16.zip pet.d64 vic20.d64 bin/cpmemu
+all: apple2e.po c64.d64 bbcmicro.ssd x16.zip pet.d64 vic20.d64 bin/cpmemu atari800.atr atari800hd.atr
 
 $(OBJDIR)/multilink: $(OBJDIR)/tools/multilink.o
 	@mkdir -p $(dir $@)
@@ -220,8 +239,43 @@ vic20.d64: $(OBJDIR)/vic20.exe $(OBJDIR)/bdos.img Makefile $(APPS) \
 	cpmcp -f c1541 $@ $(OBJDIR)/ccp.sys $(APPS) 0:
 	cpmchattr -f c1541 $@ s 0:cbmfs.sys 0:ccp.sys
 
+# Atari targets call /usr/bin/printf directly because 'make' calls /bin/sh
+# which might be the Defective Annoying SHell which has a broken printf
+# implementation.
+
+$(OBJDIR)/src/bios/atari800.o: CFLAGS65 += -DATARI_SD
+$(OBJDIR)/atari800.exe:
+atari800.atr: $(OBJDIR)/atari800.exe $(OBJDIR)/bdos.img Makefile \
+			$(MINIMAL_APPS) $(OBJDIR)/ccp.sys
+	dd if=/dev/zero of=$@ bs=128 count=720
+	mkfs.cpm -f atari90 $@
+	cpmcp -f atari90 $@ $(OBJDIR)/ccp.sys $(MINIMAL_APPS) 0:
+	cpmchattr -f atari90 $@ s 0:ccp.sys
+	dd if=$(OBJDIR)/atari800.exe of=$@ bs=128 conv=notrunc
+	dd if=$(OBJDIR)/bdos.img of=$@ bs=128 seek=8 conv=notrunc
+	mv $@ $@.raw
+	/usr/bin/printf '\x96\x02\x80\x16\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' > $@
+	cat $@.raw >> $@
+	rm $@.raw
+
+$(OBJDIR)/src/bios/atari800hd.o: CFLAGS65 += -DATARI_HD
+$(OBJDIR)/atari800hd.exe:
+atari800hd.atr: $(OBJDIR)/atari800hd.exe $(OBJDIR)/bdos.img Makefile \
+			$(APPS) $(OBJDIR)/ccp.sys
+	dd if=/dev/zero of=$@ bs=128 count=8190
+	mkfs.cpm -f atarihd $@
+	cpmcp -f atarihd $@ $(OBJDIR)/ccp.sys $(APPS) 0:
+	cpmchattr -f atarihd $@ s 0:ccp.sys
+	dd if=$(OBJDIR)/atari800hd.exe of=$@ bs=128 conv=notrunc
+	dd if=$(OBJDIR)/bdos.img of=$@ bs=128 seek=10 conv=notrunc
+	mv $@ $@.raw
+	/usr/bin/printf '\x96\x02\xf0\xff\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' > $@
+	cat $@.raw >> $@
+	rm $@.raw
+
+
 clean:
-	rm -rf $(OBJDIR) bin apple2e.po c64.d64 bbcmicro.ssd x16.zip pet.d64 vic20.d64
+	rm -rf $(OBJDIR) bin apple2e.po c64.d64 bbcmicro.ssd x16.zip pet.d64 vic20.d64 atari800.atr atari800hd.atr
 
 .DELETE_ON_ERROR:
 .SECONDARY:

README.md

@@ -38,6 +38,7 @@ No, it won't let you run 8080 programs on the 6502!
 <a href="doc/apple2e.png"><img src="doc/apple2e.png" style="width:40%" alt="CP/M-65 running on an Apple IIe"></a>
 <a href="doc/pet4032.png"><img src="doc/pet4032.png" style="width:40%" alt="CP/M-65 running on a Commodore PET 4032"></a>
 <a href="doc/vic20.png"><img src="doc/vic20.png" style="width:40%" alt="CP/M-65 running on a Commodore VIC-20"></a>
+<a href="doc/atari800.png"><img src="doc/atari800.png" style="width:40%" alt="CP/M-65 running on an Atari 800XL"></a>
 </div>
 
 
@@ -149,6 +150,21 @@ drive) and BBC Micro (producing a 200kB SSSD DFS disk).
 
   - This port runs completely bare-metal and does not use any ROM routines.
 
+### Atari 800 XL/XE notes
+
+  - Standard 720 sectors single-sided single-density disk. The first three
+    tracks are reserved (54 sectors). The rest contains a standard CP/M 2.2
+    filesystem. Boot with BASIC disabled.
+
+  - Uses the Atari OS boot loader to load both BIOS and BDOS to avoid needing
+    Atari DOS 2.0 DOS.SYS which would consumes precious memory and is useless
+    afterwards. CCP.SYS is loaded from the CP/M filesystem.
+
+  - Console is standard 40x24 and it uses the Atari OS routines to read the
+    keyboard and write to the screen.
+
+  - There are 41728 bytes of TPA memory.
+
 ### Supported programs
 
 You don't get a lot right now. As transients, you get `DUMP`, `STAT`, `COPY`,

apps/cls.asm

@@ -0,0 +1,8 @@
+\ cls - clear screen
+BDOS_CONOUT = 2
+BDOS = start-3
+start:
+    ldy #BDOS_CONOUT
+    lda #26
+    jmp BDOS
+