Dragon 200 with Disc Drive

[pser1]

Hello,
when you work with a Dragon 200 and a DOS system (DOS11C for instance), and you switch to 64 mode (EXEC48000, losing the disks, OK), the you cannot use the hexadecimal number system,
for instance if you write ?&H100 all you will get is ?SN ERROR
But if there is NO system disk attached, it works without problems.
You can verify this with XRoar.
I am afraid that if anyone charges a Basic program from disc and then simply switches to mode 64 to use more RAM, this would happen most of the time.
Strangely, the command POKE&H400,65 is accepted running a Basic program despite it is rejected from keyboard.
Other sentences like PEEK(&HFF03) or PRINT&H100 don't work either way.
Does anybody know if there is any way to solve that conflict?
thanks in advance
pere

[zephyr]

I have uploaded a small program to the Hints and Tips section that will allow you to safely enter 64 mode on a Dragon 64/200 when DragonDOS is present. Enter PCLEAR4 in 64 mode to restore the default 41241 BASIC bytes free.