search for: trig

i'd like to know if there is any plan or existing work to add a Aho's trig language like code generator generator? "...If you are starting a new port, we recommend that you write the instruction selector using the SelectionDAG infrastructure." any other things i should know before i write one? thank you.

mdct.c, lines 436 onward (part of mdct_backward) state { DATA_TYPE *oX1=out+n2+n4; DATA_TYPE *oX2=out+n2+n4; DATA_TYPE *iX =out; T =init->trig+n2; do{ oX1-=4; oX1[3] = MULT_NORM (iX[0] * T[1] - iX[1] * T[0]); oX2[0] = -MULT_NORM (iX[0] * T[0] + iX[1] * T[1]); oX1[2] = MULT_NORM (iX[2] * T[3] - iX[3] * T[2]); oX2[1] = -MULT_NORM (iX[2] * T[2] + iX[3] * T[3]); oX1[1] = MULT_NORM (iX[4]...

As some of you know, I'm creating a hardware MDCT core. At the moment I'm working out the best way to create a lookup table for the trig values, as set up in mdct_init: /* trig lookups... */ for(i=0;i<n/4;i++){ T[i*2]=FLOAT_CONV(cos((M_PI/n)*(4*i))); T[i*2+1]=FLOAT_CONV(-sin((M_PI/n)*(4*i))); T[n2+i*2]=FLOAT_CONV(cos((M_PI/(2*n))*(2*i+1))); T[n2+i*2+1]=FLOAT_CONV(sin((M_PI/(2*n))*(2*i+1))); } for(i=0;i<...

On Sun, Apr 24, 2005 at 07:15:03PM +0800, Tzu-Chien Chiu wrote: > i'd like to know if there is any plan or existing work to add a Aho's > trig language like code generator generator? I'm not aware of either the trig language code generator nor any work to implement it in LLVM. > "...If you are starting a new port, we recommend that you write the > instruction selector using the SelectionDAG infrastructure." > &gt...

On Sun, 24 Apr 2005, Tzu-Chien Chiu wrote: > i'd like to know if there is any plan or existing work to add a Aho's > trig language like code generator generator? Trig is a code generator generator? Is there any documentation for it available anywhere? -Chris > "...If you are starting a new port, we recommend that you write the > instruction selector using the SelectionDAG infrastructure." > &gt...

Hello, I''m trying to compile Xen unstable on NetBSD, I''ve aplied the patches from http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/sysutils/xentools41/patches/?only_with_tag=MAIN and copied the blk files from http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/sysutils/xentools41/files/?only_with_tag=MAIN (I don''t know which of these patches have been applied to xen unstable, so

http://portal.acm.org/citation.cfm?id=75700 On 4/25/05, Chris Lattner <sabre at nondot.org> wrote: > On Sun, 24 Apr 2005, Tzu-Chien Chiu wrote: > > i'd like to know if there is any plan or existing work to add a Aho's > > trig language like code generator generator? > > Trig is a code generator generator? Is there any documentation for it > available anywhere? > > -Chris > > > "...If you are starting a new port, we recommend that you write the > > instruction selector using the Sele...

...der if anyone has already done this conversion? Using a pointer to access memory elements means you do not have to keep thinking about the width of your index, however you do have to think about this if you take the pointers away which is what I'm having problems with. For instance, init-> trig : T[0] through to T[7] contain the values of memory stored at (init->trig)+n4 onwards. I can't pass the pointer init->trig directly to hardware since the hardware core will not be able to access the memory of the host PC (mapping0.c which calls mdct_backward will remain on the host PC f...

Hello All, I cant seem to do a trig regression in R. The equation is as follows : y = a+b*(sin((2*pi*x/360) - c))^2 a, b, c are coefs that I want. y, x are input vectors. The equation I put into R: lm(y ~ sin(2*pi*x/360)^2) This equation is missing the c and I dont get the right answer. Also, I dont know how to plot the lm over t...

The formatting of the IO-APIC debug key info has niggled me for a while, and with the latest interrupt bug I am chasing, has finally motivated me to fix it. The attached patch causes all columns to line up, and removes the comma which served no purpose in combination with the spaces already present. -- Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer T: +44 (0)1223 225 900,

...ut we've made good progress. Are you interested in helping out? -Chris > On 4/25/05, Chris Lattner <sabre at nondot.org> wrote: >> On Sun, 24 Apr 2005, Tzu-Chien Chiu wrote: >>> i'd like to know if there is any plan or existing work to add a Aho's >>> trig language like code generator generator? >> >> Trig is a code generator generator? Is there any documentation for it >> available anywhere? >> >> -Chris >> >>> "...If you are starting a new port, we recommend that you write the >>> instruct...

Full_Name: Robin Hankin Version: 2.4.0 RC OS: MacOSX 10.4.7 Submission from: (NULL) (139.166.242.29) The first cut line described in Trig.Rd for asin() is incorrect in the ascii version of the manpage. The Rd file reads: For \code{asin()} and \code{acos()}, there are two cuts, both along the real axis: \eqn{\left(-\infty, -1\right]}{\(-Inf, 1\]} and Note the inconsistency between the ascii and latex equations. It should read:...

...n the complex plane. This implies that I need to support complex numbers as a datatype with LLVM. Its fairly straightforward to create a struct of two floats (or doubles, etc.) and do the simple operations like add, subtract, multiply, divide, etc. However, things get stickier when we get to the trig functions. At that point, I'd rather defer to the trig functions implemented in C++, possibly taking them from boost's TR1 support instead of my compiler's TR1 support. At any rate, these functions aren't like the cos function in the math library because they are possibly template...

...a connection to the users default printer and it seems like it fails. * We have device drivers uploaded to the samba server for some of the printers but it does not make any difference if we remove nt*.tdb files. * This was working before, but all of a sudden it stoped working, possebly trigged by upploading new printer drivers, possebly by something else. In the logs we find this on level 1 when we start the citrix connection on the windows client "130.240.3.45" with the default printer "lwdup". [2002/11/11 13:55:08, 1] lib/util_sock.c:open_socket_out(860) ti...

Recently our automated testing system has caught a curious assertion while testing Xen 4.1.5 on a HaswellDT system. (XEN) Assertion ''(sp == 0) || (peoi[sp-1].vector < vector)'' failed at irq.c:1030 (XEN) ----[ Xen-4.1.5 x86_64 debug=n Not tainted ]---- (XEN) CPU: 0 (XEN) RIP: e008:[<ffff82c48016b2b4>] do_IRQ+0x514/0x750 (XEN) RFLAGS: 0000000000010093 CONTEXT:

...rol Register */ -#define FCR_ENABLE 0x01 /* enable FIFO */ -#define FCR_CLRX 0x02 /* clear Rx FIFO */ -#define FCR_CLTX 0x04 /* clear Tx FIFO */ -#define FCR_DMA 0x10 /* enter DMA mode */ -#define FCR_TRG1 0x00 /* Rx FIFO trig lev 1 */ -#define FCR_TRG4 0x40 /* Rx FIFO trig lev 4 */ -#define FCR_TRG8 0x80 /* Rx FIFO trig lev 8 */ -#define FCR_TRG14 0xc0 /* Rx FIFO trig lev 14 */ - -/* Line Control Register */ -#define LCR_DLAB 0x80 /* Divisor Latch Access */ - -/* Modem Contr...

Hi, Since upgrading to version 2.11.0~20100402-1, starting R fails with: /usr/lib64/R/bin/exec/R: error while loading shared libraries: libblas.so.3gf: cannot open shared object file: No such file or directory Is this occurring to others on sid? -- Seb

> Date: Wed, 31 May 2000 22:27:06 +1200 > From: Ko-Kang Wang <Ko-Kang at xtra.co.nz> > > Just out of curiousity, why is it I can''t do multiple commenting in R. I have > to type # in front of each line (well, it''s true). If there are 20 or more > lines it becomes a bit annoying. > > In SAS there is /* blah blah blah */, which comments out an

...eproducible example to demonstrate the issue. First, make a dataset from the pbc dataset in the survival package --------------- # Make a dataset library(survival) d <- pbc[,c('time','status','age','sex','hepmeg','platelet', 'trt', 'trig')] d[d==-9] <- NA d[,c(4,5,7)] <- lapply(d[,c(4,5,7)], FUN=as.factor) str(d) summary(d) --------------- Second, since there is missing data for several (but not all) of the variables, investigate the patterns. --------------- library(Hmisc) na.pattern(d) clus <- naclus(d, metho...

I am trying to calculate coordinate transformations and in the process of debugging my code using debug I found the following Browse[1]> direction[i] [1] -1.570796 Browse[1]> cos(direction[i]) [1] 6.123032e-17 Browse[1]> cos(-1.570796) [1] 3.267949e-07 Browse[1]> direction[i] [1] -1.570796 Browse[1]> cos(direction[i]) [1] 6.123032e-17 Browse[1]> cos(-1.570796) [1] 3.267949e-07