fft.htm

在LPC2368上实现的FFT程序

<P><STRONG><a name="[13c0b48]"></a>__rt_heap_extend</STRONG> (ARM, 24 bytes, Stack size 8 bytes, stkheap2.o(.text), UNUSED)
<BR><BR>[Calls]<UL><LI><a href="#[13c0d2c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__user_heap_extend (Weak Reference)
</UL>

<P><STRONG><a name="[1465dc4]"></a>cos</STRONG> (ARM, 244 bytes, Stack size 40 bytes, cos.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 176 + Unknown Stack Size
<LI>Call Chain = cos -> __ieee754_rem_pio2 -> __aeabi_ddiv</UL>
<BR>[Calls]<UL><LI><a href="#[146064c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__set_errno (via Veneer)
<LI><a href="#[147537c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__kernel_sin
<LI><a href="#[14764a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__ieee754_rem_pio2
<LI><a href="#[14770d8]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__kernel_cos
<LI><a href="#[1478688]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;scalbn
</UL>
<BR>[Called By]<UL><LI><a href="#[fc1b5c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;Fft
<LI><a href="#[1465d48]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__softfp_cos
</UL>

<P><STRONG><a name="[1465d48]"></a>__softfp_cos</STRONG> (ARM, 4 bytes, Stack size 0 bytes, cos.o(.text), UNUSED)
<BR><BR>[Calls]<UL><LI><a href="#[1465dc4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;cos
</UL>

<P><STRONG><a name="[146529c]"></a>sin</STRONG> (ARM, 260 bytes, Stack size 40 bytes, sin.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 176 + Unknown Stack Size
<LI>Call Chain = sin -> __ieee754_rem_pio2 -> __aeabi_ddiv</UL>
<BR>[Calls]<UL><LI><a href="#[146064c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__set_errno (via Veneer)
<LI><a href="#[147537c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__kernel_sin
<LI><a href="#[14764a0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__ieee754_rem_pio2
<LI><a href="#[14770d8]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__kernel_cos
<LI><a href="#[1478688]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;scalbn
</UL>
<BR>[Called By]<UL><LI><a href="#[fc1b5c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;Fft
<LI><a href="#[1465220]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__softfp_sin
</UL>

<P><STRONG><a name="[1465220]"></a>__softfp_sin</STRONG> (ARM, 4 bytes, Stack size 0 bytes, sin.o(.text), UNUSED)
<BR><BR>[Calls]<UL><LI><a href="#[146529c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;sin
</UL>

<P><STRONG><a name="[14649c4]"></a>sqrt</STRONG> (ARM, 116 bytes, Stack size 24 bytes, sqrt.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 40<LI>Call Chain = sqrt -> _dsqrt</UL>
<BR>[Calls]<UL><LI><a href="#[146064c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__set_errno (via Veneer)
<LI><a href="#[1467310]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_cdcmple
<LI><a href="#[147b5e4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_dsqrt
</UL>
<BR>[Called By]<UL><LI><a href="#[fc1978]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;display_text_1
<LI><a href="#[fc1b5c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;Fft
<LI><a href="#[1464948]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__softfp_sqrt
</UL>

<P><STRONG><a name="[1464948]"></a>__softfp_sqrt</STRONG> (ARM, 4 bytes, Stack size 0 bytes, sqrt.o(.text), UNUSED)
<BR><BR>[Calls]<UL><LI><a href="#[14649c4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;sqrt
</UL>

<P><STRONG><a name="[1463bfc]"></a>__rt_entry</STRONG> (ARM, 76 bytes, Stack size 16 bytes, kernel.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 68 + Unknown Stack Size
<LI>Call Chain = __rt_entry -> __rt_lib_init -> _get_lc_numeric -> strcmp</UL>
<BR>[Calls]<UL><LI><a href="#[13c0bd0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_stackheap_init
<LI><a href="#[14839a4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_platform_post_lib_init
<LI><a href="#[1483f58]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_platform_post_stackheap_init
<LI><a href="#[1485abc]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_lib_init (via Veneer)
<LI><a href="#[148944c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;exit (via BX)
</UL>
<BR>[Called By]<UL><LI><a href="#[13c03b8]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__main
<LI><a href="#[13d84b4]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__scatterload_rt2
</UL>

<P><STRONG><a name="[1463ab4]"></a>__rt_exit</STRONG> (ARM, 20 bytes, Stack size 8 bytes, kernel.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = __rt_exit -> __rt_lib_shutdown</UL>
<BR>[Calls]<UL><LI><a href="#[1485a6c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_lib_shutdown (via Veneer)
</UL>
<BR>[Called By]<UL><LI><a href="#[148944c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;exit (via Veneer)
</UL>

<P><STRONG><a name="[1463a3c]"></a>__rt_abort</STRONG> (ARM, 8 bytes, Stack size 0 bytes, kernel.o(.text), UNUSED)
<BR><BR>[Calls]<UL><LI><a href="#[14749b4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_sys_exit
</UL>

<P><STRONG><a name="[146311c]"></a>__user_setup_stackheap</STRONG> (ARM, 96 bytes, Stack size 8 bytes, sys_stackheap_outer.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 8 + Unknown Stack Size
<LI>Call Chain = __user_setup_stackheap</UL>
<BR>[Calls]<UL><LI><a href="#[ef7ff0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__user_initial_stackheap
<LI><a href="#[1474378]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__user_perproc_libspace
</UL>
<BR>[Called By]<UL><LI><a href="#[13c0bd0]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__rt_stackheap_init
</UL>

<P><STRONG><a name="[1462b38]"></a>__aeabi_idiv0</STRONG> (ARM, 4 bytes, Stack size 0 bytes, aeabi_idiv0.o(.text))
<BR><BR>[Called By]<UL><LI><a href="#[13c2940]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__aeabi_idivmod
</UL>

<P><STRONG><a name="[1461840]"></a>__rt_stackheap_storage</STRONG> (ARM, 12 bytes, Stack size 0 bytes, rt_stackheap_storage_intlibspace.o(.text))
<BR><BR>[Called By]<UL><LI><a href="#[13c0bd0]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__rt_stackheap_init
</UL>

<P><STRONG><a name="[146069c]"></a>__read_errno</STRONG> (Thumb, 18 bytes, Stack size 8 bytes, _rserrno.o(.text), UNUSED)
<BR><BR>[Calls]<UL><LI><a href="#[146054c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__ARM_stackcheck (Weak Reference)
<LI><a href="#[1472de4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_errno_addr (via Veneer)
</UL>

<P><STRONG><a name="[146064c]"></a>__set_errno</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, _rserrno.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = __set_errno</UL>
<BR>[Calls]<UL><LI><a href="#[146054c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__ARM_stackcheck (Weak Reference)
<LI><a href="#[1472de4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_errno_addr (via Veneer)
</UL>
<BR>[Called By]<UL><LI><a href="#[14649c4]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;sqrt (via Veneer)
<LI><a href="#[146529c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;sin (via Veneer)
<LI><a href="#[1465dc4]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;cos (via Veneer)
</UL>

<P><STRONG><a name="[145ff4c]"></a>_printf_int_common</STRONG> (Thumb, 170 bytes, Stack size 40 bytes, _printf_intcommon.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 56 + Unknown Stack Size
<LI>Call Chain = _printf_int_common -> _printf_post_padding</UL>
<BR>[Calls]<UL><LI><a href="#[13c43b0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_post_padding
<LI><a href="#[13c4434]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_pre_padding
<LI><a href="#[1477bac]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__ARM_call_via_r2
</UL>
<BR>[Called By]<UL><LI><a href="#[13c3ce4]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_int_dec
</UL>

<P><STRONG><a name="[145f744]"></a>__lib_sel_fp_printf</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, _printf_fp_dec.o(.text), UNUSED)

<P><STRONG><a name="[145f6cc]"></a>_fp_display</STRONG> (Thumb, 798 bytes, Stack size 64 bytes, _printf_fp_dec.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 280<LI>Call Chain = _fp_display -> _fp_digits -> _btod_etento -> _btod_emul -> _e2e</UL>
<BR>[Calls]<UL><LI><a href="#[145f7c4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fp_addexp
<LI><a href="#[145f83c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fp_digits
<LI><a href="#[146054c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__ARM_stackcheck (Weak Reference)
<LI><a href="#[14714b4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__rt_locale (via Veneer)
<LI><a href="#[1481380]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__mathlib_classify (via Veneer)
</UL>
<BR>[Called By]<UL><LI><a href="#[145f67c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_fp_dec_real
</UL>

<P><STRONG><a name="[145f67c]"></a>_printf_fp_dec_real</STRONG> (Thumb, 234 bytes, Stack size 56 bytes, _printf_fp_dec.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 336 + Unknown Stack Size
<LI>Call Chain = _printf_fp_dec_real -> _fp_display -> _fp_digits -> _btod_etento -> _btod_emul -> _e2e</UL>
<BR>[Calls]<UL><LI><a href="#[13c43b0]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_post_padding
<LI><a href="#[13c4434]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_pre_padding
<LI><a href="#[145f6cc]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_fp_display
<LI><a href="#[146054c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__ARM_stackcheck (Weak Reference)
<LI><a href="#[1477bac]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__ARM_call_via_r2
</UL>
<BR>[Called By]<UL><LI><a href="#[1466474]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_fp_dec (via Veneer)
</UL>

<P><STRONG><a name="[145e2bc]"></a>_printf_char_common</STRONG> (Thumb, 44 bytes, Stack size 88 bytes, _printf_char_common.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 472 + Unknown Stack Size
<LI>Call Chain = _printf_char_common -> __printf -> _printf_fp_dec -> _printf_fp_dec_real -> _fp_display -> _fp_digits -> _btod_etento -> _btod_emul -> _e2e</UL>
<BR>[Calls]<UL><LI><a href="#[148bbf8]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__printf
</UL>
<BR>[Called By]<UL><LI><a href="#[13c348c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__0sprintf
</UL>

<P><STRONG><a name="[145db38]"></a>_sputc</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, _sputc.o(.text))
<BR><BR>[Called By]<UL><LI><a href="#[13c348c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__0sprintf
</UL>
<BR>[Address Reference Count : 1]<UL><LI> __0sprintf.o(.text)
</UL>
<P><STRONG><a name="[145d5d8]"></a>__rt_udiv10</STRONG> (ARM, 44 bytes, Stack size 0 bytes, rtudiv10.o(.text))
<BR><BR>[Called By]<UL><LI><a href="#[13c3ce4]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_int_dec (via Veneer)
</UL>

<P><STRONG><a name="[1477d74]"></a>__ARM_call_via_r0</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[1477df4]"></a>__call_via_r0</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[1477c78]"></a>__ARM_call_via_r1</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, callvia.o(.text))
<BR><BR>[Called By]<UL><LI><a href="#[148bbf8]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__printf
</UL>

<P><STRONG><a name="[1477cf8]"></a>__call_via_r1</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[1477bac]"></a>__ARM_call_via_r2</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, callvia.o(.text))
<BR><BR>[Called By]<UL><LI><a href="#[13c43b0]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_post_padding
<LI><a href="#[13c4434]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_pre_padding
<LI><a href="#[145f67c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_fp_dec_real
<LI><a href="#[145ff4c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_int_common
<LI><a href="#[148ac6c]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;_printf_outstr_char
<LI><a href="#[148bbf8]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__printf
</UL>

<P><STRONG><a name="[1477bfc]"></a>__call_via_r2</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[1477ab0]"></a>__ARM_call_via_r3</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, callvia.o(.text))
<BR><BR>[Called By]<UL><LI><a href="#[148bbf8]">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;__printf
</UL>

<P><STRONG><a name="[1477b30]"></a>__call_via_r3</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[14779b4]"></a>__ARM_call_via_r4</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[1477a34]"></a>__call_via_r4</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[14778b8]"></a>__ARM_call_via_r5</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[1477938]"></a>__call_via_r5</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[14777bc]"></a>__ARM_call_via_r6</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[147783c]"></a>__call_via_r6</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[14776c0]"></a>__ARM_call_via_r7</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[1477740]"></a>__call_via_r7</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, callvia.o(.text), UNUSED)

<P><STRONG><a name="[14770d8]"></a>__kernel_cos</STRONG> (ARM, 380 bytes, Stack size 64 bytes, cos_i.o(.text))
<BR><BR>[Stack]<UL><LI>Max Depth = 104<LI>Call Chain = __kernel_cos -> __kernel_poly -> __aeabi_dmul</UL>
<BR>[Calls]<UL><LI><a href="#[13bc824]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_d2iz
<LI><a href="#[13becf4]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_dsub
<LI><a href="#[13bedb8]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_drsub
<LI><a href="#[146c7fc]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_dmul
<LI><a href="#[1478688]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;scalbn
<LI><a href="#[148057c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__kernel_poly
</UL>
<BR>[Called By]<UL><LI