Tests if a register is zero or negative. Performs a logical AND between a register and itself. The register will remain unchanged.
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Operation: |
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(i) |
Rd ← Rd • Rd |
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Syntax: |
Operands: |
Program Counter: |
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(i) |
TST Rd |
0 ≤ d ≤ 31 |
PC ← PC + 1 |
16-bit Opcode: (see AND Rd, Rd)
| 0010 | 00dd | dddd | dddd |