92 строки
1,6 КиБ
Go
92 строки
1,6 КиБ
Go
// +build arm7tdmi
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package runtime
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import (
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"unsafe"
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)
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type timeUnit int64
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const tickMicros = 1
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func putchar(c byte) {
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// dummy, TODO
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}
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//go:extern _sbss
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var _sbss unsafe.Pointer
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//go:extern _ebss
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var _ebss unsafe.Pointer
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//go:extern _sdata
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var _sdata unsafe.Pointer
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//go:extern _sidata
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var _sidata unsafe.Pointer
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//go:extern _edata
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var _edata unsafe.Pointer
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// Entry point for Go. Initialize all packages and call main.main().
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//go:export main
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func main() {
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// Initialize .data and .bss sections.
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preinit()
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// Run initializers of all packages.
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initAll()
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// Compiler-generated call to main.main().
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callMain()
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}
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func preinit() {
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// Initialize .bss: zero-initialized global variables.
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ptr := unsafe.Pointer(&_sbss)
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for ptr != unsafe.Pointer(&_ebss) {
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*(*uint32)(ptr) = 0
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ptr = unsafe.Pointer(uintptr(ptr) + 4)
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}
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// Initialize .data: global variables initialized from flash.
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src := unsafe.Pointer(&_sidata)
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dst := unsafe.Pointer(&_sdata)
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for dst != unsafe.Pointer(&_edata) {
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*(*uint32)(dst) = *(*uint32)(src)
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dst = unsafe.Pointer(uintptr(dst) + 4)
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src = unsafe.Pointer(uintptr(src) + 4)
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}
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}
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func ticks() timeUnit {
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// TODO
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return 0
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}
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const asyncScheduler = false
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func sleepTicks(d timeUnit) {
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// TODO
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}
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func abort() {
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// TODO
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for {
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}
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}
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// Implement memset for LLVM and compiler-rt.
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//go:export memset
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func libc_memset(ptr unsafe.Pointer, c byte, size uintptr) {
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for i := uintptr(0); i < size; i++ {
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*(*byte)(unsafe.Pointer(uintptr(ptr) + i)) = c
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}
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}
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// Implement memmove for LLVM and compiler-rt.
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//go:export memmove
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func libc_memmove(dst, src unsafe.Pointer, size uintptr) {
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memmove(dst, src, size)
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}
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