Displaying 7 results from an estimated 7 matches for "div32".
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2005 Dec 12
2
More floating point errors
Hi!
It seems that using a different compiler (I assume the
development is done with MSC) uncovers various issues
with the floating point.
Here is the second one I'm seeing - DOMAIN error from
sqrt().
In the open_loop_nbest_pitch(), this line:
g = DIV32(corr[i-start],
10+SHR32(MULT16_16(spx_sqrt(e0),spx_sqrt(energy[i-start])
),6));
The values are:
e0 is 7.2
i is 142,
start is 17
energy [i-start] is -2.1004911E-015
Hope this information is enough to go on.
Tia,
.a
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2012 Jan 19
0
[LLVMdev] Problem generating <target>GenAsmMatcher.inc
..., RC:$rt)], itin> {
let rd = 0;
let shamt = 0;
let Defs = DefRegs;
}
Note:,there doesn't seem to be an issue with the 32 bit versions which seem to be the following the same pattern. Also, the 64 bit version is in its' own td, though I don't know why that would matter.
class Div32<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
Div<op, func, instr_asm, itin, CPURegs, [HI, LO]>;
def SDIV : Div32<MipsDivRem, 0x1a, "div", IIIdiv>;
def UDIV : Div32<MipsDivRemU, 0x1b, "divu", IIIdiv>;
Jack
--------------...
2006 Feb 14
0
Bug in vbr_analysis
...mpiler (I assume the
development is
> done with MSC) uncovers various issues with the
floating point.
No, all development is done on gcc/Linux.
> Here is the second one I'm seeing - DOMAIN error from
sqrt().
>
> In the open_loop_nbest_pitch(), this line:
>
> g = DIV32(corr[i-start], 10
>
+SHR32(MULT16_16(spx_sqrt(e0),spx_sqrt(energy[i-start])),
6));
change that to:
g = DIV32(corr[i-start],
10+SHR32(MULT16_16(spx_sqrt(e0),spx_sqrt(1
+energy[i-start])),6));
(note the "1+" in the spx_sqrt)
As for this appearing only on some version/compiler
configu...
2008 Feb 02
0
Patch to make analysis data available.
...32_t) st->ps[i];
+ break;
+ case SPEEX_PREPROCESS_GET_NOISE_ESTIMATE:
+ for(i=0;i<st->ps_size;i++)
+ ((spx_int32_t *)ptr)[i] = (spx_int32_t) PSHR32(st->noise[i], NOISE_SHIFT);
+ break;
+ case SPEEX_PREPROCESS_GET_SNR:
+ {
+ spx_int32_t fstart = (spx_int32_t) DIV32(MULT16_16(300 * 2, st->ps_size), st->sampling_rate);
+ spx_int32_t fend = (spx_int32_t) DIV32(MULT16_16(2000 * 2, st->ps_size), st->sampling_rate);
+ spx_word32_t Z = 0;
+ for(i = fstart; i<= fend; i++)
+ Z = ADD32(Z, EXTEND32(st->zeta[i]));
+ (*(spx_int32_t*)ptr) =...
2004 Aug 06
0
[ANNOUNCE] PocketPC Port for speex-1.1.5 with sample code
...6_32_Q11(c,a,b) ((c)+(a)*(b))
#define MAC16_32_Q15(c,a,b) ((c)+(a)*(b))
#define MAC16_16_Q11(c,a,b) ((c)+(a)*(b))
#define MULT16_16_Q11(a,b) ((a)*(b))
#define MULT16_16_Q13(a,b) ((a)*(b))
#define MULT16_16_Q14(a,b) ((a)*(b))
#define MULT16_16_Q15(a,b) ((a)*(b))
#define DIV32_16(a,b) ((a)/(b))
#define DIV32(a,b) ((a)/(b))
#endif
#endif
2004 Aug 06
2
[ANNOUNCE] PocketPC Port for speex-1.1.5 with sample code
Hi Jean-Marc,
Based on the wonderful Speex project, I've created SpeexOutLoud, essentially a Speex codec port for Windows Mobile 2003 devices.
I've included a sample project intended to show the usage of SpeexOutLoud codec in a Pocket PC application based on .NET Compact Framework.
I'd request you to please go through the attached build, and include it as a contribution to the
2005 May 25
3
Speex on TI C6x, Problem with TI C5x Patch
...AC16_16_Q11(c,a,b) ((c)+(a)*(b))
#define MAC16_16_Q13(c,a,b) ((c)+(a)*(b))
#define MULT16_16_Q11_32(a,b) ((a)*(b))
#define MULT16_16_Q13(a,b) ((a)*(b))
#define MULT16_16_Q14(a,b) ((a)*(b))
#define MULT16_16_Q15(a,b) ((a)*(b))
#define MULT16_16_P15(a,b) ((a)*(b))
#define DIV32_16(a,b) ((a)/(b))
#define DIV32(a,b) ((a)/(b))
#endif
#ifdef CONFIG_TI_C55X
/* 2 on TI C5x DSP */
#define BYTES_PER_CHAR 2
#define BITS_PER_CHAR 16
#define LOG2_BITS_PER_CHAR 4
#else
#define BYTES_PER_CHAR 1
#define BITS_PER_CHAR 8
#define LOG2_BITS_PER_CHAR 3
#endif
#endif
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