- | The mul instructions of the device should be specified in the following formats. |
- | If the instruction is executed in syntax "mul imm9, reg2, reg3", and the following expression is specified for imm, the assembler executes instruction expansion to generate multiple machine instructions. |
(a) | Absolute expression exceeding the range of -256 to +255, but within the range of -32,768 to +32,767 |
mul imm16, reg2, reg3
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movea imm16, r0, r1
mul r1, reg2, reg3
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(b) | Absolute expression having a value exceeding the range of -32,768 to +32,767 |
If all the lower 16 bits of the value of imm are 0
mul imm, reg2, reg3
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movhi HIGHW(imm), r0, r1
mul r1, reg2, reg3
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Else
mul imm, reg2, reg3
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mov imm, r1
mul r1, reg2, reg3
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(c) | Relative expression having !label or %label, or that having $label for a label having a definition in the sdata/sbss-attribute section |
mul !label, reg2, reg3
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movea !label, r0, r1
mul r1, reg2, reg3
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mul %label, reg2, reg3
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movea %label, r0, r1
mul r1, reg2, reg3
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mul $label, reg2, reg3
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movea $label, r0, r1
mul r1, reg2, reg3
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(d) | Relative expression having #label or label, or that having $label for a label having no definition in the sdata/sbss-attribute section |
mul #label, reg2, reg3
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mov #label, r1
mul r1, reg2, reg3
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mul label, reg2, reg3
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mov label, r1
mul r1, reg2, reg3
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mul $label, reg2, reg3
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mov $label, r1
mul r1, reg2, reg3
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