81 lines
2.9 KiB
Go
81 lines
2.9 KiB
Go
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package arm
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import (
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"github.com/segmentio/asm/cpu/cpuid"
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. "golang.org/x/sys/cpu"
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)
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type CPU cpuid.CPU
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func (cpu CPU) Has(feature Feature) bool {
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return cpuid.CPU(cpu).Has(cpuid.Feature(feature))
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}
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func (cpu *CPU) set(feature Feature, enable bool) {
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(*cpuid.CPU)(cpu).Set(cpuid.Feature(feature), enable)
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}
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type Feature cpuid.Feature
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const (
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SWP Feature = 1 << iota // SWP instruction support
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HALF // Half-word load and store support
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THUMB // ARM Thumb instruction set
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BIT26 // Address space limited to 26-bits
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FASTMUL // 32-bit operand, 64-bit result multiplication support
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FPA // Floating point arithmetic support
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VFP // Vector floating point support
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EDSP // DSP Extensions support
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JAVA // Java instruction set
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IWMMXT // Intel Wireless MMX technology support
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CRUNCH // MaverickCrunch context switching and handling
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THUMBEE // Thumb EE instruction set
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NEON // NEON instruction set
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VFPv3 // Vector floating point version 3 support
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VFPv3D16 // Vector floating point version 3 D8-D15
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TLS // Thread local storage support
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VFPv4 // Vector floating point version 4 support
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IDIVA // Integer divide instruction support in ARM mode
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IDIVT // Integer divide instruction support in Thumb mode
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VFPD32 // Vector floating point version 3 D15-D31
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LPAE // Large Physical Address Extensions
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EVTSTRM // Event stream support
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AES // AES hardware implementation
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PMULL // Polynomial multiplication instruction set
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SHA1 // SHA1 hardware implementation
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SHA2 // SHA2 hardware implementation
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CRC32 // CRC32 hardware implementation
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)
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func ABI() CPU {
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cpu := CPU(0)
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cpu.set(SWP, ARM.HasSWP)
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cpu.set(HALF, ARM.HasHALF)
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cpu.set(THUMB, ARM.HasTHUMB)
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cpu.set(BIT26, ARM.Has26BIT)
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cpu.set(FASTMUL, ARM.HasFASTMUL)
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cpu.set(FPA, ARM.HasFPA)
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cpu.set(VFP, ARM.HasVFP)
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cpu.set(EDSP, ARM.HasEDSP)
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cpu.set(JAVA, ARM.HasJAVA)
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cpu.set(IWMMXT, ARM.HasIWMMXT)
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cpu.set(CRUNCH, ARM.HasCRUNCH)
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cpu.set(THUMBEE, ARM.HasTHUMBEE)
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cpu.set(NEON, ARM.HasNEON)
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cpu.set(VFPv3, ARM.HasVFPv3)
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cpu.set(VFPv3D16, ARM.HasVFPv3D16)
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cpu.set(TLS, ARM.HasTLS)
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cpu.set(VFPv4, ARM.HasVFPv4)
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cpu.set(IDIVA, ARM.HasIDIVA)
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cpu.set(IDIVT, ARM.HasIDIVT)
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cpu.set(VFPD32, ARM.HasVFPD32)
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cpu.set(LPAE, ARM.HasLPAE)
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cpu.set(EVTSTRM, ARM.HasEVTSTRM)
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cpu.set(AES, ARM.HasAES)
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cpu.set(PMULL, ARM.HasPMULL)
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cpu.set(SHA1, ARM.HasSHA1)
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cpu.set(SHA2, ARM.HasSHA2)
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cpu.set(CRC32, ARM.HasCRC32)
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return cpu
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}
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