On Mon, 10 Sep 2001 18:48:01 -0400, Dan Sugalski wrote:
>At 12:35 AM 9/11/2001 +0200, Bart Lateur wrote:
>>On Mon, 10 Sep 2001 17:13:44 -0400, Dan Sugalski wrote:
>>
>> >Who the heck is going to override arctangent? (No, don't tell me, I don't
>> >want to know)
>>
>>Perhaps you do. Think BigFloat
On Mon, 10 Sep 2001 17:13:44 -0400, Dan Sugalski wrote:
>Who the heck is going to override arctangent? (No, don't tell me, I don't
>want to know)
Perhaps you do. Think BigFloat. Or Complex.
--
Bart.
At 02:12 PM 9/10/2001 -0700, Hong Zhang wrote:
> > Uri Guttman
> > > we are planning automatic over/underflow to bigfloat. so there is no
> > > need for traps. they could be provided at the time of the
> > > conversion to big*.
> >
> > OK. But will Perl support signaling and non-signaling NANs?
>
> At 09:15 PM 9/10/2001 +0100, Simon Cozens wrote:
> >FWIW, it's just dawned on me that if we want all of these things to be
> >overloadable by PMCs, they need to have vtable entries. The PMC vtable
> >is going to be considerably bigger than we anticipated.
>
> Who the heck is going to override a
On Mon, 10 Sep 2001, Simon Cozens wrote:
> On Sat, Sep 08, 2001 at 12:00:24PM -0400, Dan Sugalski wrote:
> > Okay, I'm whipping together the "fancy math" section of the interpreter
> > assembly language. I've got:
> >
> > sin, cos, tan : Plain ones
> > asin, acos, atan: arc-what
> Uri Guttman
> > we are planning automatic over/underflow to bigfloat. so there is no
> > need for traps. they could be provided at the time of the
> > conversion to big*.
>
> OK. But will Perl support signaling and non-signaling NANs?
I don't think we should go for automatic overflow/underf
At 09:15 PM 9/10/2001 +0100, Simon Cozens wrote:
>FWIW, it's just dawned on me that if we want all of these things to be
>overloadable by PMCs, they need to have vtable entries. The PMC vtable
>is going to be considerably bigger than we anticipated.
Who the heck is going to override arctangent? (
On Sat, Sep 08, 2001 at 12:00:24PM -0400, Dan Sugalski wrote:
> Okay, I'm whipping together the "fancy math" section of the interpreter
> assembly language. I've got:
>
> sin, cos, tan : Plain ones
> asin, acos, atan : arc-whatevers
> shinh, cosh, tanh : Hyperbolic whatevers
> l
At 10:58 AM 9/10/2001 -0700, David Whipp wrote:
>Dan Sugalski wrote:
> > Okay, I'm whipping together the "fancy math" section of the
> > interpreter assembly language. I've got:
>[...]
> > Can anyone think of things I've forgotten? It's been a while
> > since I've done numeric work.
>
>I'm not sur
At 10:55 AM 9/10/2001 -0700, Hong Zhang wrote:
> > At 06:26 PM 9/9/2001 -0700, Wizard wrote:
> > >into something using a processor op equivalent to the 8051C
> > >testbit( byte_variable, bit_offset).
> >
> > This is pretty much
> >
> >testbit I0, 6
> >
> > to test whether bit 6 is set i I0
> "DW" == David Whipp <[EMAIL PROTECTED]> writes:
DW> Dan Sugalski wrote:
>> Okay, I'm whipping together the "fancy math" section of the
>> interpreter assembly language. I've got:
DW> [...]
>> Can anyone think of things I've forgotten? It's been a while
>> since I've done numer
> At 06:26 PM 9/9/2001 -0700, Wizard wrote:
> >into something using a processor op equivalent to the 8051C
> >testbit( byte_variable, bit_offset).
>
> This is pretty much
>
>testbit I0, 6
>
> to test whether bit 6 is set i I0, right?
What is the difference from
and I0, I0, (1 << 6)
At 06:26 PM 9/9/2001 -0700, Wizard wrote:
>into something using a processor op equivalent to the 8051C
>testbit( byte_variable, bit_offset).
This is pretty much
testbit I0, 6
to test whether bit 6 is set i I0, right?
Dan
-
Well, I used to do some embedded systems programming using C, and many of
the compilers would make attempts to optimize logical ops like
if( byte_variable & 0xF7 ){...
into something using a processor op equivalent to the 8051C
testbit( byte_variable, bit_offset).
The 8051 processor has sever
> "W" == Wizard <[EMAIL PROTECTED]> writes:
W> Uri Guttman wrote:
>> but having parrot op codes map to special instructions
>> makes sense only if we are doing some form of machine instruction
>> generation as with JIT or TIL.
W> Actually, I wasn't necessarily asking for any speci
Dan Sugalski:
# At 10:08 AM 9/10/2001 -0700, Wizard wrote:
# >Uri Guttman wrote:
...
# Okay, I see what you're aiming at. I don't think we will,
# mainly because
# it's not going to do us a whole lot of good. Parrot's got
# more registers
# than any system on the planet that I know of, so the bit
At 10:08 AM 9/10/2001 -0700, Wizard wrote:
>Uri Guttman wrote:
> > but having parrot op codes map to special instructions
> > makes sense only if we are doing some form of machine instruction
> > generation as with JIT or TIL.
>
>Actually, I wasn't necessarily asking for any special ops (I'm not a
At 10:07 AM 9/10/2001 -0500, Brian Wheeler wrote:
>Honestly, I don't care either way, since add i0,i0,0 is the same
>(basically) as a nop, but takes a little more cpu. One could always
>#define nop add i0,i0,0
>:)
Ah, almost, except that add i0,i0,0 is a four-word instruction, and you
might be
On Mon, 2001-09-10 at 09:16, Bryan C. Warnock wrote:
> On Monday 10 September 2001 10:28 am, Brian Wheeler wrote:
> >
> > I was thinking about NOP this morning, and I realized that it might very
> > well be necessary. If someone was writing a "simple" assembler for
> > parrot, it might be useful
On Monday 10 September 2001 10:28 am, Brian Wheeler wrote:
>
> I was thinking about NOP this morning, and I realized that it might very
> well be necessary. If someone was writing a "simple" assembler for
> parrot, it might be useful for padding.
Pad what?
--
Bryan C. Warnock
[EMAIL PROTECTED]
On Mon, 2001-09-10 at 08:47, Dan Sugalski wrote:
> At 08:07 PM 9/9/2001 -0400, Uri Guttman wrote:
> > > "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
> >
> > DS> Yeah, I can't think of a good reason for a noop. We might have one
> > DS> anyway, though, just in case one comes along anywa
Uri Guttman wrote:
> but having parrot op codes map to special instructions
> makes sense only if we are doing some form of machine instruction
> generation as with JIT or TIL.
Actually, I wasn't necessarily asking for any special ops (I'm not actually
asking for anything, it's just a suggestion)
At 08:07 PM 9/9/2001 -0400, Uri Guttman wrote:
> > "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
>
> DS> Yeah, I can't think of a good reason for a noop. We might have one
> DS> anyway, though, just in case one comes along anyway.
>
>in a hardware cpu they were commonly used to fill an
> "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
DS> At 01:54 PM 9/9/2001 -0700, Wizard wrote:
>> Just curious, would it be practical to design-in a boolean-specific
>> register/set of registers? There are many processors (PICC, 8051, etc.)
>> which would likely be better able utili
> "BL" == Bart Lateur <[EMAIL PROTECTED]> writes:
BL> On Sat, 08 Sep 2001 13:02:04 -0400, Dan Sugalski wrote:
>>> Uri mentioned exp(x) = e^x, but I think if you are going to include
>>> log2, log10, log, etc, you should also include ln.
>>
>> Added.
BL> Er... aren't ln and log s
> "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
DS> Yeah, I can't think of a good reason for a noop. We might have one
DS> anyway, though, just in case one comes along anyway.
in a hardware cpu they were commonly used to fill an instruction slot to
keep a pipeline filled, or to follow
> "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
DS> That's a good question. Now that we have a list of bitwise ops, we
DS> can decide how they work. What happens when you
DS> rotate/shift/bit-or a float? Or a bitint/bigfloat? Or a string?
DS> Important questions, and we can hammer
> "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
DS> Names should be in all lower case, and short but not truncated. Try to
DS> avoid underscores, but shift_l and shift_r are OK. (I'll get to the
DS> underscore issues later)
two suggestions. first in the parrot asm PDD, codify that
On Sat, 08 Sep 2001 13:02:04 -0400, Dan Sugalski wrote:
>>Uri mentioned exp(x) = e^x, but I think if you are going to include
>>log2, log10, log, etc, you should also include ln.
>
>Added.
Er... aren't ln and log synonyms?
--
Bart.
Jeremy Howard:
# Uri Guttman wrote:
# > > "BS" == Benjamin Stuhl <[EMAIL PROTECTED]> writes:
# >
# > >> Can anyone think of things I've forgotten? It's been a
# while since
# > >> I've done numeric work.
# >
# > BS> ln, asinh, acosh, atanh2?
# >
# > dan mentioned log (base anything) but
At 01:54 PM 9/9/2001 -0700, Wizard wrote:
>Just curious, would it be practical to design-in a boolean-specific
>register/set of registers? There are many processors (PICC, 8051, etc.)
>which would likely be better able utilize their own optimizations if this
>were the case ( bitset, testbit, high,
Just curious, would it be practical to design-in a boolean-specific
register/set of registers? There are many processors (PICC, 8051, etc.)
which would likely be better able utilize their own optimizations if this
were the case ( bitset, testbit, high, low, etc.). It could be done without
the regi
Dan Sugalski <[EMAIL PROTECTED]> writes:
> At 07:43 PM 9/8/2001 -0700, Wizard wrote:
> >Questions regarding Bitwise operators:
> >
> > > =item rol tx, ty, tz *
> >...
> > > =item ror tx, ty, tz *
> >
> >Are these with or without carry?
>
> That's a good question. Now that we have a list of bitwi
At 03:51 PM 9/8/2001 -0700, Matthew Cline wrote:
>On Saturday 08 September 2001 09:00 am, Dan Sugalski wrote:
>
> > Okay, I'm whipping together the "fancy math" section of the interpreter
> > assembly language. I've got:
> >
> > sin, cos, tan : Plain ones
> > asin, acos, atan : arc-wh
On 9/9/01 11:47 AM, Dan Sugalski wrote:
>> http://www.allegedlyfunny.com/opcodes.html
>> I think DWIM might be a bit much, but HCF (Halt, Catch Fire) might be
>> fun :)
>
> Far too many of those are tempting... :)
Hey, if the PPC can have EIEIO, I see no reason Parrot can't sneak a few fun
ones
At 09:51 PM 9/8/2001 -0700, Dave Storrs wrote:
>On Sat, 8 Sep 2001, Uri Guttman wrote:
>
> > > "BW" == Brian Wheeler <[EMAIL PROTECTED]> writes:
> > BW> =item eqv tx, ty, tz *
> >
> > BW> Bitwise Equivalence all bits in y with z and store the result in
> > BW> register x.
> >
> > that
At 07:43 PM 9/8/2001 -0700, Wizard wrote:
>Questions regarding Bitwise operators:
>
> > =item rol tx, ty, tz *
>...
> > =item ror tx, ty, tz *
>
>Are these with or without carry?
That's a good question. Now that we have a list of bitwise ops, we can
decide how they work. What happens when you ro
At 10:19 PM 9/8/2001 -0500, Brian Wheeler wrote:
>Out of curiosity, will there be a NOP instruction? I guess we really
>wouldn't need one, since things like ADD I0,I0,0 is effectively a NOP
>and the Dan has indicated he wanted to keep the bytecode read-only, so
>there'd be no need for it after o
At 11:24 PM 9/8/2001 -0400, Uri Guttman wrote:
> > "BW" == Brian Wheeler <[EMAIL PROTECTED]> writes:
>
>
> BW> =item and tx, ty, tz *
>
> BW> Bitwise And all bits in y with z and store the result in register x.
> BW> (x = y & z)
>
>just a minor thought on parrot assembler argument order.
At 11:03 PM 9/8/2001 -0500, Brian Wheeler wrote:
>On Sat, 2001-09-08 at 22:24, Uri Guttman wrote:
> > > "BW" == Brian Wheeler <[EMAIL PROTECTED]> writes:
>Looking at the opcodes as presented in the PDD, they're hauntingly like
>the alpha codes (maybe Dan's favorite isn't the vax, but the alpha
> > BW> Roll y left z bits and store the result in x.
> > BW> [what are the valid values for z?]
> >
> > isn't that rotate left? rotate should require z to be the word size or
> > less. or we can define it to work modulo the word size. which reminds
> > me, is there going to be a simple langu
On Sun, Sep 09, 2001 at 02:33:17PM +1000, Jeremy Howard wrote:
> Uri Guttman wrote:
> > > "BS" == Benjamin Stuhl <[EMAIL PROTECTED]> writes:
> >
> > >> Can anyone think of things I've forgotten? It's been a while since
> > >> I've done numeric work.
> >
> > BS> ln, asinh, acosh, atanh2?
"Jeremy Howard" <[EMAIL PROTECTED]> writes:
> Uri Guttman wrote:
> > > "BS" == Benjamin Stuhl <[EMAIL PROTECTED]> writes:
> >
> > >> Can anyone think of things I've forgotten? It's been a while since
> > >> I've done numeric work.
> >
> > BS> ln, asinh, acosh, atanh2?
> >
> > dan mentio
Uri Guttman wrote:
> > "BS" == Benjamin Stuhl <[EMAIL PROTECTED]> writes:
>
> >> Can anyone think of things I've forgotten? It's been a while since
> >> I've done numeric work.
>
> BS> ln, asinh, acosh, atanh2?
>
> dan mentioned log (base anything) but i don't recall ln. and definitely
>
> "DS" == Dave Storrs <[EMAIL PROTECTED]> writes:
DS> On Sat, 8 Sep 2001, Uri Guttman wrote:
>> > "BW" == Brian Wheeler <[EMAIL PROTECTED]> writes:
BW> =item eqv tx, ty, tz *
>>
BW> Bitwise Equivalence all bits in y with z and store the result in
BW> register x.
>>
>> t
On Sat, 8 Sep 2001, Uri Guttman wrote:
> > "BW" == Brian Wheeler <[EMAIL PROTECTED]> writes:
> BW> =item eqv tx, ty, tz *
>
> BW> Bitwise Equivalence all bits in y with z and store the result in
> BW> register x.
>
> that is just !(y xor z). we can provide the op but perl as we know
> "JH" == Jeremy Howard <[EMAIL PROTECTED]> writes:
JH> Uri Guttman wrote:
>> > "BS" == Benjamin Stuhl <[EMAIL PROTECTED]> writes:
>>
>> >> Can anyone think of things I've forgotten? It's been a while since
>> >> I've done numeric work.
>>
BS> ln, asinh, acosh, atanh2?
>
On Sat, 2001-09-08 at 22:24, Uri Guttman wrote:
> > "BW" == Brian Wheeler <[EMAIL PROTECTED]> writes:
>
>
> BW> =item and tx, ty, tz *
>
> BW> Bitwise And all bits in y with z and store the result in register x.
> BW> (x = y & z)
>
> just a minor thought on parrot assembler argument
> "BS" == Benjamin Stuhl <[EMAIL PROTECTED]> writes:
>> Can anyone think of things I've forgotten? It's been a while since
>> I've done numeric work.
BS> ln, asinh, acosh, atanh2?
dan mentioned log (base anything) but i don't recall ln. and definitely
the arc hyberbolics are in after
> "BW" == Brian Wheeler <[EMAIL PROTECTED]> writes:
BW> =item and tx, ty, tz *
BW> Bitwise And all bits in y with z and store the result in register x.
BW> (x = y & z)
just a minor thought on parrot assembler argument order. dan seems to
have picked the result register to be first.
On Sat, 2001-09-08 at 21:43, Wizard wrote:
> Questions regarding Bitwise operators:
>
> > =item rol tx, ty, tz *
> ...
> > =item ror tx, ty, tz *
>
> Are these with or without carry?
> If not, is there a need for a RCL/RCR (with carry...and carry where)?
>
I'd think without, since I've not see
--- Dan Sugalski <[EMAIL PROTECTED]> wrote:
> Okay, I'm whipping together the "fancy math" section of
> the interpreter
> assembly language. I've got:
>
> sin, cos, tan : Plain ones
> asin, acos, atan : arc-whatevers
> shinh, cosh, tanh : Hyperbolic whatevers
> log2, log10, log
Questions regarding Bitwise operators:
> =item rol tx, ty, tz *
...
> =item ror tx, ty, tz *
Are these with or without carry?
If not, is there a need for a RCL/RCR (with carry...and carry where)?
And what about a negate operator (neg)?
Grant M.
On Saturday 08 September 2001 09:00 am, Dan Sugalski wrote:
> Okay, I'm whipping together the "fancy math" section of the interpreter
> assembly language. I've got:
>
> sin, cos, tan : Plain ones
> asin, acos, atan : arc-whatevers
> shinh, cosh, tanh : Hyperbolic whatevers
> log2
On Sat, 2001-09-08 at 15:28, Dan Sugalski wrote:
> At 03:14 PM 9/8/2001 -0500, Brian Wheeler wrote:
> >On Sat, 2001-09-08 at 11:00, Dan Sugalski wrote:
> > > Okay, I'm whipping together the "fancy math" section of the interpreter
> > > assembly language. I've got:
> > >
> > > sin, cos, tan
At 03:14 PM 9/8/2001 -0500, Brian Wheeler wrote:
>On Sat, 2001-09-08 at 11:00, Dan Sugalski wrote:
> > Okay, I'm whipping together the "fancy math" section of the interpreter
> > assembly language. I've got:
> >
> > sin, cos, tan : Plain ones
> > asin, acos, atan : arc-whatevers
> > s
On Saturday 08 September 2001 04:14 pm, Brian Wheeler wrote:
> While not math, per se, there are bitops (and, or, not, xor, eqv) and
> shifts (though they can be simulated by "mul tx,ty,(2^bits)" and "div
> tx,ty,(2^bits)")
There will be bitops.
>
> I doubt rolls would be useful :)
Vuja de.
>
On Sat, 2001-09-08 at 11:00, Dan Sugalski wrote:
> Okay, I'm whipping together the "fancy math" section of the interpreter
> assembly language. I've got:
>
> sin, cos, tan : Plain ones
> asin, acos, atan : arc-whatevers
> shinh, cosh, tanh : Hyperbolic whatevers
> log2, log10, l
On Sat, Sep 08, 2001 at 02:55:36PM -0400, Uri Guttman wrote:
> zap is an ibm 360/370/390 assembler op code and i bet they
> trademarked/patented/whatevered its name. :)
>
> Zero and Add Packed.
>
> gawd, i can't believe i remembered that. i don't recall exactly what it
> does but i think it was
> "MGS" == Michael G Schwern <[EMAIL PROTECTED]> writes:
MGS> On Sat, Sep 08, 2001 at 12:00:24PM -0400, Dan Sugalski wrote:
>> pow: Raise x to the y power
MGS> You forgot biff, zap and womp!
zap is an ibm 360/370/390 assembler op code and i bet they
trademarked
> "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
>> 1/x is often handy, although maybe not enough to justify its own opcode.
>> (It is often used in other calculations, however, so perhaps one opcode
>> would be better than 3.)
>>
>> sqrt has traditionally been provided in langua
On Sat, Sep 08, 2001 at 12:00:24PM -0400, Dan Sugalski wrote:
> pow : Raise x to the y power
You forgot biff, zap and womp!
--
Michael G. Schwern <[EMAIL PROTECTED]>http://www.pobox.com/~schwern/
Perl6 Quality Assurance <[EMAIL PROTECTED]> Kwalitee Is Job One
At 01:38 PM 9/8/2001 -0400, Bryan C. Warnock wrote:
>On Saturday 08 September 2001 12:00 pm, Dan Sugalski wrote:
> > Okay, I'm whipping together the "fancy math" section of the interpreter
> > assembly language. I've got:
> >
> > sin, cos, tan : Plain ones
> > asin, acos, atan : arc-w
On Saturday 08 September 2001 12:00 pm, Dan Sugalski wrote:
> Okay, I'm whipping together the "fancy math" section of the interpreter
> assembly language. I've got:
>
> sin, cos, tan : Plain ones
> asin, acos, atan : arc-whatevers
> shinh, cosh, tanh : Hyperbolic whatevers
> log2,
At 12:29 PM 9/8/2001 -0400, Buddha Buck wrote:
>Dan Sugalski <[EMAIL PROTECTED]> writes:
>
> > Okay, I'm whipping together the "fancy math" section of the interpreter
> > assembly language. I've got:
>
>
>
> > Can anyone think of things I've forgotten? It's been a while since I've
> > done numeric
At 12:12 PM 9/8/2001 -0400, Uri Guttman wrote:
> > "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
> DS> Can anyone think of things I've forgotten? It's been a while since
> I've
> DS> done numeric work.
>
>i am not being picky, but there is secant, and arc hyperbolics too. you
>can deri
Dan Sugalski <[EMAIL PROTECTED]> writes:
> Okay, I'm whipping together the "fancy math" section of the interpreter
> assembly language. I've got:
> Can anyone think of things I've forgotten? It's been a while since I've
> done numeric work.
Uri mentioned exp(x) = e^x, but I think if you are
> "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
DS> Okay, I'm whipping together the "fancy math" section of the interpreter
DS> assembly language. I've got:
DS> sin, cos, tan : Plain ones
DS> asin, acos, atan : arc-whatevers
DS> shinh, cosh, tanh : Hyperbolic whate
Okay, I'm whipping together the "fancy math" section of the interpreter
assembly language. I've got:
sin, cos, tan : Plain ones
asin, acos, atan: arc-whatevers
shinh, cosh, tanh : Hyperbolic whatevers
log2, log10, log: Base 2, base 10, and explicit base logarithms
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