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Here are a couple of quick examples for you: "DK" auto-start: ORG $C000 FCB $44,$4B CLRA L1 LDX #$0400 L2 STA ,X+ CMPX #$05FF BLS L2 INCA BNE L1 JMP $B43E FIRQ auto-start: ORG $C000 CLRA L1 LDX #$0400 L2 STA ,X+ CMPX #$05FF BLS L2 INCA BNE L1 RTI

If the Dragon (or CoCo) finds $444B ("DK") at $C000-$C001, it then jumps to the next location at $C002. If "DK" is not found, and the cartridge is wired to auto start, the interrupts are enabled and the FIRQ handler does a hardware init, clears the reset flag at $71, and jumps to $C000.

Hi Jim, Had a little free time on my hands today, so did the Dragon ports of the three games you recommended (Pitman, Lumpies, and Maxit). All three are now in the Uploads section of the forum. BTW, I made a couple of slight modificactions to your "Double Speed" routine at lines 10000 to 10003. Chan...

This is a copy of Maxit by P. Leabo. Converted for the MC-10 and CoCo/Dragon by Jim Gerrie.

This is a copy of Lumpies of Lotis IV by John and Jeff Klein. Converted for the MC-10 and CoCo/Dragon by Jim Gerrie.

This is a copy of Pitman by Yutaka Isokawa. Converted for the MC-10 and CoCo/Dragon by Jim Gerrie.

Thanks Jim! I'm going to be busy for the next few days, but will convert them for the Dragon ASAP.

Regards,
Steve

I converted your CoCo port. I didn't list the MC-10 version so didn't know about the embedded machine code.

(1) Does the machine code routine use any ROM calls?

(2) Is there a good MC-10 assembler/disassembler available for download anywhere on the net?

Jim,

(1) What do you think of the MC-10. Do you prefer it over the CoCo?

(2) Are there any other MC-10 emulators available?

Thanks for the information and the updated MC-10 emulator. 8-) I have just uploaded a Dragon 32/64 conversion of your "Jeweler" game to the Uploads section. Is there a speedup poke on the Dragon like the Colour Computer? I have found that the MC-10 runs a little faster than the coco in regular speed...