Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
565 bytes
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1 | .title "H8/500 DIVIDE" |
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2 | !! 2 byte integer Divide code for the H8/500 |
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3 | !! |
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4 | !! Steve Chamberlain |
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5 | !! sac@cygnus.com |
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6 | !! |
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7 | !! |
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8 | |
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9 | !! args in r1 and r4, result in r0/r1 |
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10 | |
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11 | #if __CODE__==32 |
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12 | #define RET prts |
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13 | #else |
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14 | #define RET rts |
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15 | #endif |
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16 | .global __divmodhi4 |
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17 | |
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18 | |
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19 | __divmodhi4: |
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20 | clr.w r0 |
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21 | tst.w r1 ! neg arg1 |
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22 | bpl PU |
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23 | |
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24 | |
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25 | neg.w r1 |
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26 | NU: tst.w r4 |
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27 | bmi NN |
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28 | |
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29 | NP: divxu.w r4,r0 |
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30 | neg.w r0 |
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31 | neg.w r1 |
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32 | RET |
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33 | |
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34 | NN: neg.w r4 |
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35 | divxu.w r4,r0 |
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36 | neg.w r0 ! get rem sign right |
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37 | RET |
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38 | |
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39 | |
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40 | PU: |
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41 | tst.w r4 |
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42 | bpl PP |
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43 | |
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44 | |
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45 | PN: neg.w r4 |
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46 | divxu.w r4,r0 |
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47 | neg.w r1 |
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48 | RET |
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49 | |
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50 | PP: divxu.w r4,r0 ! rem in r0, q in r1 |
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51 | RET |
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52 | |
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53 | |
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54 | |
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