Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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1186 | savelij | 1 | cpu 68020 |
2 | fpu on |
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3 | padding off |
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4 | |||
5 | ; Data and address registers are 'ordered'. Address registers are treated |
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6 | ; as registers 8..15, and SP is equal to A7: |
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7 | |||
8 | dc.b d4 == a2 ; 0 |
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9 | dc.b d4 <> a2 ; 1 |
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10 | dc.b d4 <= a2 ; 1 |
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11 | dc.b d4 < a2 ; 1 |
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12 | dc.b d4 >= a2 ; 0 |
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13 | dc.b d4 > a2 ; 0 |
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14 | |||
15 | dc.b a7 == sp ; 1 |
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16 | dc.b a7 <> sp ; 0 |
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17 | dc.b a7 <= sp ; 1 |
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18 | dc.b a7 < sp ; 0 |
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19 | dc.b a7 >= sp ; 1 |
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20 | dc.b a7 > sp ; 0 |
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21 | |||
22 | ; Floating point registers are in a different 'dimension', so there is |
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23 | ; no lesser/greater: |
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24 | |||
25 | dc.b fp4 == a2 ; 0 |
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26 | dc.b fp4 <> a2 ; 1 |
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27 | dc.b fp4 <= a2 ; 0 |
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28 | dc.b fp4 < a2 ; 0 |
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29 | dc.b fp4 >= a2 ; 0 |
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30 | dc.b fp4 > a2 ; 0 |
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31 | |||
32 | ; The same is true for the FPU control registers: |
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33 | |||
34 | dc.b fp4 == fpcr ; 0 |
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35 | dc.b fp4 <> fpcr ; 1 |
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36 | dc.b fp4 <= fpcr ; 0 |
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37 | dc.b fp4 < fpcr ; 0 |
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38 | dc.b fp4 >= fpcr ; 0 |
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39 | dc.b fp4 > fpcr ; 0 |