2020-11-28

	* 532: Figured out and implemented the logic to infer mode
	switching for best compression under attempt 1 proposed encoding,
	namely with 10-bit insns, 16-bit insns, 16+16-bit insns, and
	32-bit insns.  10-bit insns appear in uncompressed mode, and can
	be followed by insns in either mode; 16-bit ones appear in
	compressed mode, and can remain in compressed mode, or switch to
	uncomprssed mode for 1 insn or for good; 16+16-bit ones appear in
	compressed mode, and cannot switch modes; 32-bit ones appear only
	in uncompressed mode, or in the single-insn slot after a 16-bit
	that requests it.  If we find a 16-bit insn while we're in
	uncompressed mode, use a 10-bit nop to tentatively switch.  Insns
	that can be encoded in 10-bits, but appear in compressed mode, had
	better be encoded in 16-bits, for that offers further subsequent
	encoding options, without downsides for size estimation.  Insns
	that can be encoded as 16+16-bit decay to 32-bit if in
	uncompressed mode, or if, after a sequence thereof, a later insn
	forces a switch to 32-bit mode without an intervening switching
	insn.  Still missing: the code to select what insns can be encoded
	in what modes.  (6:42)

	* 532: Implemented a skeleton for compression ratio estimation,
	initially with the simpler mode switching of the 8-bit nop,
	odd-address 16-bit insns.  Next, rewrite it for all the complexity
	of mode switching envisioned for the "attempt 1" proposal.  (2:02)

2020-11-23

	* 238: Debating various possibilities of 16-bit encoding.  (5:20)

	* 532: Wrote a histogram python script, that breaks counts down
	per opcode, and within them, by operands.  (2:05)

2020-11-22

	* 529: Brought up the possibilities of using 8-bit nops to switch
	between modes, so that 16-bit insns would be at odd addresses, so
	that we could use the full 16-bits; of using 2-operand insns
	instead of 3- for 16-bit mode so as to increase the coverage of
	the compact encoding.
	* 238: Luke moved the comment above here, where it belonged.
	* 529: Elaborated how using actual odd-addresses for 16-bit insns
	would be dealt with WRT endianness.  Prompted by luke, added it to
	the wiki.
	* Wiki: Added self to team.  (11:50)

2020-11-21

	* 532: Wrote patch for binutils to print insn histogram.
	* Mission: Restated the proposal of adding "and users" to the
	mission statement, next to customers, as those we wish to enable
	to trust our products.  (6:48)

2020-11-20

	Reposted join message to the correct list.
	* 238: Started looking into it, from
	https://libre-soc.org/openpower/sv/16_bit_compressed/

2020-11-19

	Joined.