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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:
820 bytes
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| Line | |
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| 1 | /* This is a simple version of setjmp and longjmp for iq2000. */ |
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| 2 | |
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| 3 | |
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| 4 | /* int setjmp (jmp_buf); */ |
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| 5 | .globl setjmp |
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| 6 | .ent setjmp |
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| 7 | setjmp: |
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| 8 | sw r16,0(r4) /* rs0 */ |
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| 9 | sw r17,4(r4) /* rs1 */ |
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| 10 | sw r18,8(r4) /* rs2 */ |
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| 11 | sw r19,12(r4) /* rs3 */ |
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| 12 | sw r20,16(r4) /* rs4 */ |
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| 13 | sw r21,20(r4) /* rs5 */ |
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| 14 | sw r22,24(r4) /* rs6 */ |
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| 15 | sw r23,28(r4) /* rs7 */ |
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| 16 | sw r30,32(r4) /* rs8 */ |
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| 17 | |
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| 18 | sw r29,36(r4) |
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| 19 | sw r31,40(r4) |
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| 20 | |
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| 21 | move r2,r0 |
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| 22 | |
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| 23 | j r31 |
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| 24 | |
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| 25 | .end setjmp |
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| 26 | |
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| 27 | /* volatile void longjmp (jmp_buf, int); */ |
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| 28 | .globl longjmp |
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| 29 | .ent longjmp |
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| 30 | longjmp: |
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| 31 | lw r16,0(r4) /* rs0 */ |
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| 32 | lw r17,4(r4) /* rs1 */ |
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| 33 | lw r18,8(r4) /* rs2 */ |
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| 34 | lw r19,12(r4) /* rs3 */ |
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| 35 | lw r20,16(r4) /* rs4 */ |
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| 36 | lw r21,20(r4) /* rs5 */ |
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| 37 | lw r22,24(r4) /* rs6 */ |
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| 38 | lw r23,28(r4) /* rs7 */ |
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| 39 | lw r30,32(r4) /* rs8 */ |
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| 40 | |
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| 41 | lw r29,36(r4) |
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| 42 | lw r31,40(r4) |
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| 43 | |
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| 44 | bne r5,r0,1f |
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| 45 | li r5,1 |
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| 46 | 1: |
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| 47 | move r2,r5 |
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| 48 | |
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| 49 | j r31 |
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| 50 | |
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| 51 | .end longjmp |
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