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/linux-4.4.14/Documentation/arm/nwfpe/
DREADME.FPE1 The following describes the current state of the NetWinder's floating point
4 In the following nomenclature is used to describe the floating point
16 LDF/STF - load and store floating
24 LFM/SFM - load and store multiple floating
35 for each floating point register into the memory location given in the
45 FLT{cond}<S,D,E>{P,M,Z} Fn, Rd Convert integer to floating point
46 FIX{cond}{P,M,Z} Rd, Fn Convert floating point to integer
47 WFS{cond} Rd Write floating point status register
48 RFS{cond} Rd Read floating point status register
49 WFC{cond} Rd Write floating point control register
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DTODO20 hardware, but are handled by the floating point support code. They should
55 [NOTE: pulled out from some docs on ARM floating point, specifically
58 The floating point control register (FPCR) may only be present in some
60 specific manner, for example to disable the floating point system. The user
DREADME7 working version of all the floating point instructions the compiler
22 The floating point operations are based on SoftFloat Release 2, by
23 John Hauser. SoftFloat is a software implementation of floating-point
DNOTES6 will point it out. The ARM calling conventions require floating point
/linux-4.4.14/arch/arm/nwfpe/
Dsoftfloat-specialize78 Returns 1 if the single-precision floating-point value `a' is a NaN;
91 Returns 1 if the single-precision floating-point value `a' is a signaling
104 Returns the result of converting the single-precision floating-point NaN
124 precision floating-point format.
136 Takes two single-precision floating-point values `a' and `b', one of which
170 Returns 1 if the double-precision floating-point value `a' is a NaN;
183 Returns 1 if the double-precision floating-point value `a' is a signaling
198 Returns the result of converting the double-precision floating-point NaN
218 precision floating-point format.
233 Takes two double-precision floating-point values `a' and `b', one of which
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Dfpa11.inl24 /* Read and write floating point status register */
38 /* Read and write floating point control register */
DChangeLog20 floating point registers. Therefore, any changes to the
59 task. This should happen on the first floating point exception
/linux-4.4.14/Documentation/virtual/kvm/devices/
Ds390_flic.txt1 FLIC (floating interrupt controller)
4 FLIC handles floating (non per-cpu) interrupts, i.e. I/O, service and some
13 - purge all pending floating interrupts (KVM_DEV_FLIC_CLEAR_IRQS)
27 Copies all floating interrupts into a buffer provided by userspace.
40 Simply deletes all elements from the list of currently pending floating
/linux-4.4.14/arch/m68k/fpsp040/
Dx_ovfl.S6 | Overflow occurs when a floating-point intermediate result is
7 | too large to be represented in a floating-point data register,
8 | or when storing to memory, the contents of a floating-point
Dslog2.S13 | OUTPUT: log_10(X) or log_2(X) returned in floating-point
34 | Notes: Default means round-to-nearest mode, no floating-point
49 | Notes: Default means round-to-nearest mode, no floating-point
63 | Notes: Default means round-to-nearest mode, no floating-point
78 | Notes: Default means round-to-nearest mode, no floating-point
Dsto_res.S7 | correct floating-point destination register. fp0 and fp1
16 | Modifies: destination floating point register
Dsacos.S11 | Output: The value arccos(X) returned in floating-point register Fp0.
Dsint.S13 | number X in the ETEMP space in the floating-point
18 | number X in the ETEMP space in the floating-point
Dx_unimp.S7 | Invoked when the user program encounters a floating-point
Dsatanh.S12 | Output: The value arctanh(X) returned in floating-point register Fp0.
Dsasin.S11 | Output: The value arcsin(X) returned in floating-point register Fp0.
Dscosh.S11 | Output: The value cosh(X) returned in floating-point register Fp0.
Dsetox.S16 | exp(X) or exp(X)-1 returned in floating-point register fp0.
65 | To avoid the use of floating-point comparisons, a
489 fmovel %d0,%fp0 | ...convert to floating-format
590 fmovel %d0,%fp0 | ...convert to floating-format
656 fmovel %d0,%fp0 | ...convert to floating-format
Dx_fline.S7 | floating point instructions. If so, let fpsp_unimp handle it.
Dssinh.S11 | Output: The value sinh(X) returned in floating-point register Fp0.
Dsgetem.S17 | the floating-point save stack.
Dstanh.S11 | Output: The value tanh(X) returned in floating-point register Fp0.
Dsrem_mod.S4 | The entry point sMOD computes the floating point MOD of the
5 | input values X and Y. The entry point sREM computes the floating
Dsatan.S11 | Output: Arctan(X) returned in floating-point register Fp0.
Dslogn.S12 | Output: log(X) or log(1+X) returned in floating-point register Fp0.
Dstan.S11 | Output: The value tan(X) returned in floating-point register Fp0.
Ddecbin.S9 | Output: Exact floating-point representation of the packed bcd value.
Dres_func.S602 | operations which are not restorable into the floating-point
/linux-4.4.14/arch/cris/arch-v32/mach-a3/
DKconfig59 as inputs, although floating inputs isn't good.
79 as inputs, although floating inputs isn't good.
99 as inputs, although floating inputs isn't good.
/linux-4.4.14/arch/cris/arch-v32/mach-fs/
DKconfig97 as inputs, although floating inputs isn't good.
119 as inputs, although floating inputs isn't good.
141 as inputs, although floating inputs isn't good.
163 as inputs, although floating inputs isn't good.
185 as inputs, although floating inputs isn't good.
/linux-4.4.14/arch/cris/arch-v32/
DKconfig112 as inputs, although floating inputs isn't good.
134 as inputs, although floating inputs isn't good.
156 as inputs, although floating inputs isn't good.
178 as inputs, although floating inputs isn't good.
200 as inputs, although floating inputs isn't good.
/linux-4.4.14/Documentation/ABI/testing/
Dsysfs-bus-i2c-devices-hm63525 Description: Reports the current heading from the compass as a floating
Dsysfs-bus-event_source-devices-events84 A string representing a floating point value expressed in
93 This is provided to avoid performing floating point arithmetic
Dsysfs-bus-iio501 three_state: left floating.
/linux-4.4.14/Documentation/arm/
Dmem_alignment19 floating point emulation that works about the same way). Fix your code
39 slow (think about the floating point emulator) and
D00-INDEX44 - NWFPE floating point emulator documentation
/linux-4.4.14/arch/m68k/
DKconfig.cpu301 At some point in the future, this will cause floating-point math
303 floating-point math coprocessor. Thrill-seekers and chronically
322 This option prevents any floating-point instructions from being
324 floating point context anymore during task switches, so this
325 kernel will only be usable on machines without a floating-point
327 needs to be executed whether a floating-point instruction in the
/linux-4.4.14/Documentation/devicetree/bindings/watchdog/
Dgpio-wdt.txt10 left floating or connected to a three-state buffer.
/linux-4.4.14/arch/alpha/
DKconfig.debug38 This option is required for IEEE compliant floating point arithmetic
/linux-4.4.14/Documentation/devicetree/bindings/sound/
Drt5677.txt33 0 - floating (reset value)
/linux-4.4.14/arch/s390/kernel/
Dbase.S112 larl %r4,.Lfpctl # Restore floating point ctl register
Dentry.S364 # CIF_FPU is set, restore floating-point controls and floating-point registers.
682 # CIF_FPU is set, restore floating-point controls and floating-point registers.
/linux-4.4.14/arch/sh/
DKconfig.cpu30 bool "Flush floating point denorms to zero"
/linux-4.4.14/arch/powerpc/
DKconfig338 a floating-point unit and therefore do not implement the
339 floating-point instructions in the PowerPC instruction set. If you
340 say Y here, the kernel will include code to emulate a floating-point
341 unit, which will allow programs that use floating-point
354 bool "Emulate all the floating point instructions"
357 all the floating point instructions. If your SoC doesn't have
364 SoC, but some floating point instructions are not implemented by that.
/linux-4.4.14/arch/m68k/ifpsp060/
Dfplsp.doc110 this exception using implemented floating-point instructions.
112 floating-point Operand Error exception, then the library routine
DTEST.DOC147 The floating-point unit test has 3 entry points which will require
Dfskeleton.S228 | The execution of the instruction then proceeds with an enabled floating-point
/linux-4.4.14/arch/nios2/platform/
DKconfig.platform77 bool "Custom floating point instr support"
/linux-4.4.14/Documentation/ko_KR/
DHOWTO56 지원되지 않는다. 임의의 long long 나누기나 floating point는 지원되지 않는다.
/linux-4.4.14/arch/x86/math-emu/
DREADME48 For more information on the emulator and on floating point topics, see
154 an 80486DX. A 80486DX will allow some floating point instructions to
164 The speed of floating point computation with the emulator will depend
/linux-4.4.14/Documentation/
Dpreempt-locking.txt44 if the kernel is executing a floating-point instruction and is then preempted.
DSubmittingDrivers77 endian, people do not all have floating point and you
Dprintk-formats.txt26 The kernel's printf does not support %n. For obvious reasons, floating
Dcrc32.txt21 familiar with the IEEE 754 floating-point format, it's the same idea.)
DHOWTO40 divisions and floating point are not allowed. It can sometimes be
Dkernel-parameters.txt2438 nofxsr [BUGS=X86-32] Disables x86 floating point extended
2440 legacy floating-point registers on task switch.
2446 enabling legacy floating-point and sse state.
/linux-4.4.14/drivers/net/ethernet/intel/i40e/
Di40e_prototype.h142 u16 veb_seid, u16 *switch_id, bool *floating,
Di40e_common.c2353 bool *floating, u16 *statistic_index, in i40e_aq_get_veb_parameters() argument
2382 if (floating) { in i40e_aq_get_veb_parameters()
2386 *floating = true; in i40e_aq_get_veb_parameters()
2388 *floating = false; in i40e_aq_get_veb_parameters()
/linux-4.4.14/arch/arm/
DKconfig2061 Say Y to include the NWFPE floating point emulator in the kernel.
2063 support floating point hardware so you need to say Y here even if
2064 your machine has an FPA or floating point co-processor podule.
2073 Say Y to include 80-bit support in the kernel floating-point
2077 floating point emulator without any good reason.
2085 Say Y here to include the FAST floating point emulator in the kernel.
2096 bool "VFP-format floating point maths"
/linux-4.4.14/Documentation/power/
Dpower_supply_class.txt212 for kernel at all, as it would require floating point calculation to deal
/linux-4.4.14/Documentation/devicetree/bindings/pinctrl/
Dpinctrl-bindings.txt178 bias-high-impedance - high impedance mode ("third-state", "floating")
/linux-4.4.14/Documentation/s390/
DDebugging390.txt62 16 64 bit floating point registers (fp0-fp15 ) IEEE & HFP floating
530 The remaining floating points
547 4) Only 4 of the floating point registers are used for
550 However with IEEE floating point emulation under linux on the
686 we now use f4 & f6 for floating point arguments on 64 bit.
1590 info registers: displays registers other than floating point.
1591 info all-registers: displays floating points as well.
/linux-4.4.14/arch/cris/arch-v10/
DKconfig334 as inputs, although floating inputs isn't good.
/linux-4.4.14/arch/arm/mm/
DKconfig212 with an addition of a floating-point unit.
243 embedded trace macrocell, and a floating-point unit.
/linux-4.4.14/firmware/keyspan_pda/
Dkeyspan_pda.S335 ;; now presence pin is floating, simulating disconnect. wait 0.5s
Dxircom_pgs.S373 ;; now presence pin is floating, simulating disconnect. wait 0.5s
/linux-4.4.14/Documentation/cdrom/
Dide-cd25 - Playing audio tracks. Most of the CDROM player programs floating
/linux-4.4.14/arch/m68k/ifpsp060/src/
Dfplsp.S6719 # To avoid the use of floating-point comparisons, a #
7129 fmov.l %d1,%fp0 # convert to floating-format
7226 fmov.l %d1,%fp0 # convert to floating-format
7293 fmov.l %d1,%fp0 # convert to floating-format
8670 # Notes: Default means round-to-nearest mode, no floating-point #
8684 # Notes: Default means round-to-nearest mode, no floating-point #
8697 # Notes: Default means round-to-nearest mode, no floating-point #
8711 # Notes: Default means round-to-nearest mode, no floating-point #
/linux-4.4.14/arch/mips/
DKconfig2703 When this is enabled, the kernel will support use of 64-bit floating
2709 will require 64-bit floating point, you may wish to reduce the size
/linux-4.4.14/Documentation/virtual/kvm/
Dapi.txt574 Reads the floating point state from the vcpu.
600 Writes the floating point state to the vcpu.
2382 Allows to inject an interrupt to the guest. Interrupts can be floating
/linux-4.4.14/arch/x86/
DKconfig1531 Linux can emulate a math coprocessor (used for floating point
2222 3) switch on floating point emulation in the kernel and pass