Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
|
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
364 bytes
|
Line | |
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1 | .global ___sdivhi3 |
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2 | |
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3 | ___sdivhi3: |
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4 | lda <r4 |
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5 | ldx <r5 |
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6 | |
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7 | ldy #0 !flag positive result |
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8 | rol a |
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9 | ror a |
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10 | bpl L10 |
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11 | |
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12 | iny !flag negative result |
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13 | eor #0xFFFF |
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14 | inc a |
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15 | |
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16 | L10: pha |
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17 | txa |
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18 | bpl L20 |
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19 | |
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20 | dey !flag negative/positive result |
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21 | eor #0xFFFF |
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22 | inc a |
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23 | tax |
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24 | |
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25 | L20: pla |
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26 | phy |
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27 | jsr >udv |
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28 | ply |
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29 | beq Lend !if positive result |
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30 | |
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31 | eor #0xFFFF !negate result |
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32 | inc a |
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33 | |
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34 | Lend: sta <r0 |
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35 | rtl |
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