#: 14451 S15/Hot Topics
    01-Mar-92  01:24:48
Sb: #Secret 6309 Modes?
Fm: Kevin Darling 76703,4227
To: all

Hold onto your hats, folks!  Several days ago, someone on Usenet asked if there
were any faster/better replacements for the 6809.  A student from Japan replied
that there had been an article years ago about new modes in the Hitachi 6309...
and he also said he had tried many of them himself.

After exams, he's going to post more info.  If this pans out, someone may have
to locate a good source of 63C09E's :-)   In any case, these are some supposed
features he has mentioned...

 1. More registers (additional two 8 bit accumulators, 8 bit
     register, and a 16bit register),
 2. Two modes (6809 emulation mode and native mode),
 3. Reduced execution cycles in native mode,
 4. More instructions (16 bit x 16 bit multiplication, 32 bit / 16 bit
    division, inter-registers operationa, block transfer, bit
    manipulating operation which is compatible with what 6801 has, etc)
 5. Error trap by illegal instruction, zero division.

Some of this jibes with rumors I've heard previously.  So keep your fingers
crossed... this could be the fun scoop of the decade for 6809 fans!

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