Execute Computer/Zero: Difference between revisions
→{{header|Phix}}
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</pre>
=={{header|Phix}}==
First three were easy enough...
<!--<lang Phix>(phixonline)-->
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">NOP</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b000_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- no operation</span>
<span style="color: #000000;">LDA</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b001_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- load accumulator, a := memory [xxxxx]</span>
<span style="color: #000000;">STA</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b010_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- store accumulator, memory [xxxxx] := a</span>
<span style="color: #000000;">ADD</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b011_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- add, a := a + memory [xxxxx]</span>
<span style="color: #000000;">SUB</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b100_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- subtract, a := a – memory [xxxxx]</span>
<span style="color: #000000;">BRZ</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b101_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- branch on zero, if a = 0 then goto xxxxx</span>
<span style="color: #000000;">JMP</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b110_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- jump, goto xxxxx</span>
<span style="color: #000000;">STP</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b111_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- stop</span>
<span style="color: #000000;">OP</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b111_00000</span><span style="color: #0000FF;">,</span> <span style="color: #000080;font-style:italic;">-- operator</span>
<span style="color: #000000;">ARG</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0b000_11111</span> <span style="color: #000080;font-style:italic;">-- memory location (0 based)</span>
<span style="color: #008080;">procedure</span> <span style="color: #000000;">execute</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">name</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">sequence</span> <span style="color: #000000;">program</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">memory</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">deep_copy</span><span style="color: #0000FF;">(</span><span style="color: #000000;">program</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">pc</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">a</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span>
<span style="color: #008080;">while</span> <span style="color: #004600;">true</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">op</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">program</span><span style="color: #0000FF;">[</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">],</span><span style="color: #000000;">OP</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">arg</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">and_bits</span><span style="color: #0000FF;">(</span><span style="color: #000000;">program</span><span style="color: #0000FF;">[</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">],</span><span style="color: #000000;">ARG</span><span style="color: #0000FF;">)+</span><span style="color: #000000;">1</span>
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">switch</span> <span style="color: #000000;">op</span> <span style="color: #008080;">do</span>
<span style="color: #008080;">case</span> <span style="color: #000000;">NOP</span><span style="color: #0000FF;">:</span> <span style="color: #008080;">break</span>
<span style="color: #008080;">case</span> <span style="color: #000000;">LDA</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">a</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">memory</span><span style="color: #0000FF;">[</span><span style="color: #000000;">arg</span><span style="color: #0000FF;">]</span>
<span style="color: #008080;">case</span> <span style="color: #000000;">STA</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">memory</span><span style="color: #0000FF;">[</span><span style="color: #000000;">arg</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">a</span>
<span style="color: #008080;">case</span> <span style="color: #000000;">ADD</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">a</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">memory</span><span style="color: #0000FF;">[</span><span style="color: #000000;">arg</span><span style="color: #0000FF;">]</span>
<span style="color: #008080;">case</span> <span style="color: #000000;">SUB</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">a</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">memory</span><span style="color: #0000FF;">[</span><span style="color: #000000;">arg</span><span style="color: #0000FF;">]</span>
<span style="color: #008080;">case</span> <span style="color: #000000;">BRZ</span><span style="color: #0000FF;">:</span> <span style="color: #008080;">if</span> <span style="color: #000000;">a</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span> <span style="color: #000000;">pc</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">arg</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">case</span> <span style="color: #000000;">JMP</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">pc</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">arg</span>
<span style="color: #008080;">case</span> <span style="color: #000000;">STP</span><span style="color: #0000FF;">:</span> <span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%s: %d\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">name</span><span style="color: #0000FF;">,</span><span style="color: #000000;">a</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">return</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">switch</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
<span style="color: #000000;">execute</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"2+2"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">LDA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">3</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ADD</span><span style="color: #0000FF;">+</span><span style="color: #000000;">4</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STP</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #000000;">2</span><span style="color: #0000FF;">})</span>
<span style="color: #000000;">execute</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"7*8"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">LDA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">12</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ADD</span><span style="color: #0000FF;">+</span><span style="color: #000000;">10</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">12</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">LDA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">11</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">SUB</span><span style="color: #0000FF;">+</span><span style="color: #000000;">13</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">11</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">BRZ</span><span style="color: #0000FF;">+</span><span style="color: #000000;">8</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">JMP</span><span style="color: #0000FF;">+</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">LDA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">12</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STP</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">8</span><span style="color: #0000FF;">,</span><span style="color: #000000;">7</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">})</span>
<span style="color: #000000;">execute</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"fibonacci"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">LDA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">14</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">15</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ADD</span><span style="color: #0000FF;">+</span><span style="color: #000000;">13</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">14</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">LDA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">15</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">13</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">LDA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">16</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">SUB</span><span style="color: #0000FF;">+</span><span style="color: #000000;">17</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">BRZ</span><span style="color: #0000FF;">+</span><span style="color: #000000;">11</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">16</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">JMP</span><span style="color: #0000FF;">+</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">LDA</span><span style="color: #0000FF;">+</span><span style="color: #000000;">14</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">STP</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">8</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">})</span>
<!--</lang>-->
{{out}}
<pre>
2+2: 4
7*8: 56
fibonacci: 55
</pre>
=={{header|Wren}}==
As I'm unclear whether the interpreter should be able to deal with labels, the programs all use literal memory addresses for now. Output is in decimal.
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