27 lines
608 B
Go
27 lines
608 B
Go
package compiler
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// ReadOperands reads operands from the bytecode.
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func ReadOperands(def *Definition, ins []byte) (operands []int, offset int) {
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for _, width := range def.Operands {
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switch width {
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case 1:
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operands = append(operands, int(ReadUint8(ins[offset:])))
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case 2:
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operands = append(operands, int(ReadUint16(ins[offset:])))
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}
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offset += width
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}
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return
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}
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// ReadUint16 reads uint16 from the byte slice.
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func ReadUint16(b []byte) uint16 {
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return uint16(b[1]) | uint16(b[0])<<8
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}
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// ReadUint8 reads uint8 from the byte slice.
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func ReadUint8(b []byte) uint8 {
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return uint8(b[0])
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}
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