📄 fft.lst
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01DD 1624 CP R2,R20
01DE 0635 CPC R3,R21
01DF 0646 CPC R4,R22
01E0 0657 CPC R5,R23
01E1 F080 BCS 0x01F2
01E2 01FE MOVW R30,R28
01E3 A024 LDD R2,Z+36
01E4 A035 LDD R3,Z+37
01E5 A046 LDD R4,Z+38
01E6 A057 LDD R5,Z+39
01E7 01FE MOVW R30,R28
01E8 8060 LDD R6,Z+0
01E9 8071 LDD R7,Z+1
01EA 8082 LDD R8,Z+2
01EB 8093 LDD R9,Z+3
01EC 1426 CP R2,R6
01ED 0437 CPC R3,R7
01EE 0448 CPC R4,R8
01EF 0459 CPC R5,R9
01F0 F408 BCC 0x01F2
01F1 CFC1 RJMP 0x01B3
(0026) }
(0027) j += m;
01F2 01FE MOVW R30,R28
01F3 A024 LDD R2,Z+36
01F4 A035 LDD R3,Z+37
01F5 A046 LDD R4,Z+38
01F6 A057 LDD R5,Z+39
01F7 01FE MOVW R30,R28
01F8 8060 LDD R6,Z+0
01F9 8071 LDD R7,Z+1
01FA 8082 LDD R8,Z+2
01FB 8093 LDD R9,Z+3
01FC 0C62 ADD R6,R2
01FD 1C73 ADC R7,R3
01FE 1C84 ADC R8,R4
01FF 1C95 ADC R9,R5
0200 01FE MOVW R30,R28
0201 8260 STD Z+0,R6
0202 8271 STD Z+1,R7
0203 8282 STD Z+2,R8
0204 8293 STD Z+3,R9
0205 E042 LDI R20,2
0206 E050 LDI R21,0
0207 E060 LDI R22,0
0208 E070 LDI R23,0
0209 01FE MOVW R30,R28
020A 8024 LDD R2,Z+4
020B 8035 LDD R3,Z+5
020C 8046 LDD R4,Z+6
020D 8057 LDD R5,Z+7
020E 0E24 ADD R2,R20
020F 1E35 ADC R3,R21
0210 1E46 ADC R4,R22
0211 1E57 ADC R5,R23
0212 01FE MOVW R30,R28
0213 8224 STD Z+4,R2
0214 8235 STD Z+5,R3
0215 8246 STD Z+6,R4
0216 8257 STD Z+7,R5
0217 01FE MOVW R30,R28
0218 8C24 LDD R2,Z+28
0219 8C35 LDD R3,Z+29
021A 8C46 LDD R4,Z+30
021B 8C57 LDD R5,Z+31
021C 01FE MOVW R30,R28
021D 8064 LDD R6,Z+4
021E 8075 LDD R7,Z+5
021F 8086 LDD R8,Z+6
0220 8097 LDD R9,Z+7
0221 1462 CP R6,R2
0222 0473 CPC R7,R3
0223 0484 CPC R8,R4
0224 0495 CPC R9,R5
0225 F408 BCC 0x0227
0226 CE77 RJMP 0x009E
(0028) }
(0029) mmax=2;
0227 E042 LDI R20,2
0228 E050 LDI R21,0
0229 E060 LDI R22,0
022A E070 LDI R23,0
022B 01FE MOVW R30,R28
022C 8F40 STD Z+24,R20
022D 8F51 STD Z+25,R21
022E 8F62 STD Z+26,R22
022F 8F73 STD Z+27,R23
0230 C352 RJMP 0x0583
(0030) while (n > mmax) {
(0031) istep=mmax << 1;
0231 01FE MOVW R30,R28
0232 8C20 LDD R2,Z+24
0233 8C31 LDD R3,Z+25
0234 8C42 LDD R4,Z+26
0235 8C53 LDD R5,Z+27
0236 0C22 LSL R2
0237 1C33 ROL R3
0238 1C44 ROL R4
0239 1C55 ROL R5
023A 01FE MOVW R30,R28
023B A220 STD Z+32,R2
023C A231 STD Z+33,R3
023D A242 STD Z+34,R4
023E A253 STD Z+35,R5
(0032) theta=isign*(6.28318530717959/mmax);
023F 0185 MOVW R16,R10
0240 940E06BB CALL int2fp
0242 933A ST R19,-Y
0243 932A ST R18,-Y
0244 931A ST R17,-Y
0245 930A ST R16,-Y
0246 E608 LDI R16,0x68
0247 E010 LDI R17,0
0248 940E065F CALL lpm32
024A 933A ST R19,-Y
024B 932A ST R18,-Y
024C 931A ST R17,-Y
024D 930A ST R16,-Y
024E E604 LDI R16,0x64
024F E010 LDI R17,0
0250 940E065F CALL lpm32
0252 933A ST R19,-Y
0253 932A ST R18,-Y
0254 931A ST R17,-Y
0255 930A ST R16,-Y
0256 01FE MOVW R30,R28
0257 A024 LDD R2,Z+36
0258 A035 LDD R3,Z+37
0259 A046 LDD R4,Z+38
025A A057 LDD R5,Z+39
025B 9456 LSR R5
025C 9447 ROR R4
025D 9437 ROR R3
025E 9427 ROR R2
025F 0181 MOVW R16,R2
0260 0192 MOVW R18,R4
0261 940E06C1 CALL long2fp
0263 933A ST R19,-Y
0264 932A ST R18,-Y
0265 931A ST R17,-Y
0266 930A ST R16,-Y
0267 940E0844 CALL empy32fs
0269 E041 LDI R20,1
026A E050 LDI R21,0
026B E060 LDI R22,0
026C E070 LDI R23,0
026D 01FE MOVW R30,R28
026E A024 LDD R2,Z+36
026F A035 LDD R3,Z+37
0270 A046 LDD R4,Z+38
0271 A057 LDD R5,Z+39
0272 2224 AND R2,R20
0273 2235 AND R3,R21
0274 2246 AND R4,R22
0275 2257 AND R5,R23
0276 0181 MOVW R16,R2
0277 0192 MOVW R18,R4
0278 940E06C1 CALL long2fp
027A 933A ST R19,-Y
027B 932A ST R18,-Y
027C 931A ST R17,-Y
027D 930A ST R16,-Y
027E 940E0715 CALL add32fs
0280 940E0776 CALL div32fs
0282 940E0847 CALL empy32f
0284 01FE MOVW R30,R28
0285 AB04 STD Z+52,R16
0286 AB15 STD Z+53,R17
0287 AB26 STD Z+54,R18
0288 AB37 STD Z+55,R19
(0033) wtemp=sin(0.5*theta);
0289 E600 LDI R16,0x60
028A E010 LDI R17,0
028B 940E065F CALL lpm32
028D 933A ST R19,-Y
028E 932A ST R18,-Y
028F 931A ST R17,-Y
0290 930A ST R16,-Y
0291 01FE MOVW R30,R28
0292 AC20 LDD R2,Z+56
0293 AC31 LDD R3,Z+57
0294 AC42 LDD R4,Z+58
0295 AC53 LDD R5,Z+59
0296 925A ST R5,-Y
0297 924A ST R4,-Y
0298 923A ST R3,-Y
0299 922A ST R2,-Y
029A 940E0847 CALL empy32f
029C 940E0AF1 CALL _sin
029E 01FE MOVW R30,R28
029F A700 STD Z+40,R16
02A0 A711 STD Z+41,R17
02A1 A722 STD Z+42,R18
02A2 A733 STD Z+43,R19
(0034) wpr = -2.0*wtemp*wtemp;
02A3 E50C LDI R16,0x5C
02A4 E010 LDI R17,0
02A5 940E065F CALL lpm32
02A7 933A ST R19,-Y
02A8 932A ST R18,-Y
02A9 931A ST R17,-Y
02AA 930A ST R16,-Y
02AB 01FE MOVW R30,R28
02AC A424 LDD R2,Z+44
02AD A435 LDD R3,Z+45
02AE A446 LDD R4,Z+46
02AF A457 LDD R5,Z+47
02B0 925A ST R5,-Y
02B1 924A ST R4,-Y
02B2 923A ST R3,-Y
02B3 922A ST R2,-Y
02B4 940E0844 CALL empy32fs
02B6 01FE MOVW R30,R28
02B7 A424 LDD R2,Z+44
02B8 A435 LDD R3,Z+45
02B9 A446 LDD R4,Z+46
02BA A457 LDD R5,Z+47
02BB 925A ST R5,-Y
02BC 924A ST R4,-Y
02BD 923A ST R3,-Y
02BE 922A ST R2,-Y
02BF 940E0847 CALL empy32f
02C1 01FE MOVW R30,R28
02C2 A704 STD Z+44,R16
02C3 A715 STD Z+45,R17
02C4 A726 STD Z+46,R18
02C5 A737 STD Z+47,R19
(0035) wpi=sin(theta);
02C6 01FE MOVW R30,R28
02C7 A904 LDD R16,Z+52
02C8 A915 LDD R17,Z+53
02C9 A926 LDD R18,Z+54
02CA A937 LDD R19,Z+55
02CB 940E0AF1 CALL _sin
02CD 01FE MOVW R30,R28
02CE AB00 STD Z+48,R16
02CF AB11 STD Z+49,R17
02D0 AB22 STD Z+50,R18
02D1 AB33 STD Z+51,R19
(0036) wr=1.0;
02D2 E508 LDI R16,0x58
02D3 E010 LDI R17,0
02D4 940E065F CALL lpm32
02D6 01FE MOVW R30,R28
02D7 8B04 STD Z+20,R16
02D8 8B15 STD Z+21,R17
02D9 8B26 STD Z+22,R18
02DA 8B37 STD Z+23,R19
(0037) wi=0.0;
02DB E504 LDI R16,0x54
02DC E010 LDI R17,0
02DD 940E065F CALL lpm32
02DF 01FE MOVW R30,R28
02E0 8B00 STD Z+16,R16
02E1 8B11 STD Z+17,R17
02E2 8B22 STD Z+18,R18
02E3 8B33 STD Z+19,R19
(0038) for (m=1;m<mmax;m+=2) {
02E4 E041 LDI R20,1
02E5 E050 LDI R21,0
02E6 E060 LDI R22,0
02E7 E070 LDI R23,0
02E8 01FE MOVW R30,R28
02E9 A344 STD Z+36,R20
02EA A355 STD Z+37,R21
02EB A366 STD Z+38,R22
02EC A377 STD Z+39,R23
02ED C27B RJMP 0x0569
(0039) for (i=m;i<=n;i+=istep) {
02EE 01FE MOVW R30,R28
02EF A024 LDD R2,Z+36
02F0 A035 LDD R3,Z+37
02F1 A046 LDD R4,Z+38
02F2 A057 LDD R5,Z+39
02F3 01FE MOVW R30,R28
02F4 8224 STD Z+4,R2
02F5 8235 STD Z+5,R3
02F6 8246 STD Z+6,R4
02F7 8257 STD Z+7,R5
02F8 C1D0 RJMP 0x04C9
(0040) j=i+mmax;
02F9 01FE MOVW R30,R28
02FA 8C20 LDD R2,Z+24
02FB 8C31 LDD R3,Z+25
02FC 8C42 LDD R4,Z+26
02FD 8C53 LDD R5,Z+27
02FE 01FE MOVW R30,R28
02FF 8064 LDD R6,Z+4
0300 8075 LDD R7,Z+5
0301 8086 LDD R8,Z+6
0302 8097 LDD R9,Z+7
0303 0C62 ADD R6,R2
0304 1C73 ADC R7,R3
0305 1C84 ADC R8,R4
0306 1C95 ADC R9,R5
0307 01FE MOVW R30,R28
0308 8260 STD Z+0,R6
0309 8271 STD Z+1,R7
030A 8282 STD Z+2,R8
030B 8293 STD Z+3,R9
(0041) tempr=wr*data[j]-wi*data[j+1];
030C 01FE MOVW R30,R28
030D 8824 LDD R2,Z+20
030E 8835 LDD R3,Z+21
030F 8846 LDD R4,Z+22
0310 8857 LDD R5,Z+23
0311 925A ST R5,-Y
0312 924A ST R4,-Y
0313 923A ST R3,-Y
0314 922A ST R2,-Y
0315 01FE MOVW R30,R28
0316 8024 LDD R2,Z+4
0317 8035 LDD R3,Z+5
0318 8046 LDD R4,Z+6
0319 8057 LDD R5,Z+7
031A E044 LDI R20,4
031B E050 LDI R21,0
031C E060 LDI R22,0
031D E070 LDI R23,0
031E 925A ST R5,-Y
031F 924A ST R4,-Y
0320 923A ST R3,-Y
0321 922A ST R2,-Y
0322 018A MOVW R16,R20
0323 019B MOVW R18,R22
0324 940E05D9 CALL empy32u
0326 01F8 MOVW R30,R16
0327 0DEC ADD R30,R12
0328 1DFD ADC R31,R13
0329 8020 LDD R2,Z+0
032A 8031 LDD R3,Z+1
032B 8042 LDD R4,Z+2
032C 8053 LDD R5,Z+3
032D 925A ST R5,-Y
032E 924A ST R4,-Y
032F 923A ST R3,-Y
0330 922A ST R2,-Y
0331 940E0844 CALL empy32fs
0333 01FE MOVW R30,R28
0334 8824 LDD R2,Z+20
0335 8835 LDD R3,Z+21
0336 8846 LDD R4,Z+22
0337 8857 LDD R5,Z+23
0338 925A ST R5,-Y
0339 924A ST R4,-Y
033A 923A ST R3,-Y
033B 922A ST R2,-Y
033C E041 LDI R20,1
033D E050 LDI R21,0
033E E060 LDI R22,0
033F E070 LDI R23,0
0340 01FE MOVW R30,R28
0341 8420 LDD R2,Z+8
0342 8431 LDD R3,Z+9
0343 8442 LDD R4,Z+10
0344 8453 LDD R5,Z+11
0345 0E24 ADD R2,R20
0346 1E35 ADC R3,R21
0347 1E46 ADC R4,R22
0348 1E57 ADC R5,R23
0349 E044 LDI R20,4
034A E050 LDI R21,0
034B E060 LDI R22,0
034C E070 LDI R23,0
034D 925A ST R5,-Y
034E 924A ST R4,-Y
034F 923A ST R3,-Y
0350 922A ST R2,-Y
0351 018A MOVW R16,R20
0352 019B MOVW R18,R22
0353 940E05D9 CALL empy32u
0355 01F8 MOVW R30,R16
0356 0DEC ADD R30,R12
0357 1DFD ADC R31,R13
0358 8020 LDD R2,Z+0
0359 8031 LDD R3,Z+1
035A 8042 LDD R4,Z+2
035B 8053 LDD R5,Z+3
035C 925A ST R5,-Y
035D 924A ST R4,-Y
035E 923A ST R3,-Y
035F 922A ST R2,-Y
0360 940E0844 CALL empy32fs
0362 940E0720 CALL sub32f
0364 01FE MOVW R30,R28
0365 8700 STD Z+8,R16
0366 8711 STD Z+9,R17
0367 8722 STD Z+10,R18
0368 8733 STD Z+11,R19
(0042) tempi=wr*data[j+1]+wi*data[j];
0369 01FE MOVW R30,R28
036A 8824 LDD R2,Z+20
036B 8835 LDD R3,Z+21
036C 8846 LDD R4,Z+22
036D 8857 LDD R5,Z+23
036E 925A ST R5,-Y
036F 924A ST R4,-Y
0370 923A ST R3,-Y
0371 922A ST R2,-Y
0372 E041 LDI R20,1
0373 E050 LDI R21,0
0374 E060 LDI R22,0
0375 E070 LDI R23,0
0376 01FE MOVW R30,R28
0377 8024 LDD R2,Z+4
0378 8035 LDD R3,Z+5
0379 8046 LDD R4,Z+6
037A 8057 LDD R5,Z+7
037B 0E24 ADD R2,R20
037C 1E35 ADC R3,R21
037D 1E46 ADC R4,R22
037E 1E57 ADC R5,R23
037F E044 LDI R20,4
0380 E050 LDI R21,0
0381 E060 LDI R22,0
0382 E070 LDI R23,0
0383 925A ST R5,-Y
0384 924A ST R4,-Y
0385 923A ST R3,-Y
0386 922A ST R2,-Y
0387 018A MOVW R16,R20
0388 019B MOVW R18,R22
0389 940E05D9 CALL empy32u
038B 01F8 MOVW R30,R16
038C 0DEC ADD R30,R12
038D 1DFD ADC R31,R13
038E 8020 LDD R2,Z+0
038F 8031 LDD R3,Z+1
0390 8042 LDD R4,Z+2
0391 8053 LDD R5,Z+3
0392 925A ST R5,-Y
0393 924A ST R4,-Y
0394 923A ST R3,-Y
0395 922A ST R2,-Y
0396 940E0844 CALL empy32fs
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