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| author | Ayke van Laethem <[email protected]> | 2020-06-14 19:07:30 +0200 |
|---|---|---|
| committer | Jaden Weiss <[email protected]> | 2020-06-14 14:44:22 -0400 |
| commit | e2bf7bbb4991298d3596384bcbdf2b7c566c92f3 (patch) | |
| tree | a5e0967665aa520beccde267fae8cb3ee0d3b01a | |
| parent | 4d1d0c2d3bbd7dbacc74c445c6adc00219bae49a (diff) | |
| download | tinygo-e2bf7bbb4991298d3596384bcbdf2b7c566c92f3.tar.gz tinygo-e2bf7bbb4991298d3596384bcbdf2b7c566c92f3.zip | |
device: add new cross-arch Asm and AsmFull functions
This is necessary to avoid a circular dependency between the device/avr
and runtime/interrupts package in the next commit.
It may be worth replacing existing calls like device/arm.Asm to
device.Asm, to have a single place where these are defined.
| -rw-r--r-- | compiler/compiler.go | 4 | ||||
| -rw-r--r-- | src/device/asm.go | 21 |
2 files changed, 23 insertions, 2 deletions
diff --git a/compiler/compiler.go b/compiler/compiler.go index 677128d0e..fe45eb3fc 100644 --- a/compiler/compiler.go +++ b/compiler/compiler.go @@ -1327,9 +1327,9 @@ func (b *builder) createFunctionCall(instr *ssa.CallCommon) (llvm.Value, error) return b.createMemoryCopyCall(fn, instr.Args) case name == "runtime.memzero": return b.createMemoryZeroCall(instr.Args) - case name == "device/arm.Asm" || name == "device/avr.Asm" || name == "device/riscv.Asm": + case name == "device.Asm" || name == "device/arm.Asm" || name == "device/avr.Asm" || name == "device/riscv.Asm": return b.createInlineAsm(instr.Args) - case name == "device/arm.AsmFull" || name == "device/avr.AsmFull" || name == "device/riscv.AsmFull": + case name == "device.AsmFull" || name == "device/arm.AsmFull" || name == "device/avr.AsmFull" || name == "device/riscv.AsmFull": return b.createInlineAsmFull(instr) case strings.HasPrefix(name, "device/arm.SVCall"): return b.emitSVCall(instr.Args) diff --git a/src/device/asm.go b/src/device/asm.go new file mode 100644 index 000000000..f441b6ae2 --- /dev/null +++ b/src/device/asm.go @@ -0,0 +1,21 @@ +package device + +// Run the given assembly code. The code will be marked as having side effects, +// as it doesn't produce output and thus would normally be eliminated by the +// optimizer. +func Asm(asm string) + +// Run the given inline assembly. The code will be marked as having side +// effects, as it would otherwise be optimized away. The inline assembly string +// recognizes template values in the form {name}, like so: +// +// arm.AsmFull( +// "str {value}, {result}", +// map[string]interface{}{ +// "value": 1 +// "result": &dest, +// }) +// +// You can use {} in the asm string (which expands to a register) to set the +// return value. +func AsmFull(asm string, regs map[string]interface{}) uintptr |