31 lines
663 B
Go
31 lines
663 B
Go
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package sbf
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import "errors"
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// VM is the virtual machine abstraction, implemented by each executor.
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type VM interface {
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VMContext() any
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// TODO
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}
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// VMOpts specifies virtual machine parameters.
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type VMOpts struct {
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StackSize int
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HeapSize int
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Input []byte // mapped at VaddrInput
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MaxCU uint64
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Context any // passed to syscalls
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Syscalls map[uint32]Syscall
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}
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// Syscall are callback handles from VM to Go. (work in progress)
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type Syscall interface {
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Invoke(vm VM, r1, r2, r3, r4, r5 uint64) (uint64, error)
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}
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// Exception codes.
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var (
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ExcDivideByZero = errors.New("division by zero")
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ExcDivideOverflow = errors.New("divide overflow")
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)
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