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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:
1.4 KB
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| Line | |
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| 1 | # setjmp/longjmp for mt. |
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| 2 | # |
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| 3 | # The jmpbuf looks like this: |
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| 4 | # |
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| 5 | # Register jmpbuf offset |
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| 6 | # R0 --- -- |
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| 7 | # R1 0x4 4 |
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| 8 | # R2 0x8 8 |
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| 9 | # R3 0xc 12 |
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| 10 | # R4 0x10 16 |
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| 11 | # R5 0x14 20 |
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| 12 | # R6 0x18 24 |
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| 13 | # R7 0x1c 28 |
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| 14 | # R8 0x20 32 |
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| 15 | # R9 ---- -- |
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| 16 | # R10 ---- -- |
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| 17 | # R11 0x2c 44 |
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| 18 | # R12 0x30 48 |
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| 19 | # R13 0x34 52 |
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| 20 | # R14 0x38 56 |
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| 21 | # R15 0x3c 60 |
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| 22 | # |
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| 23 | # R1 contains the pointer to jmpbuf |
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| 24 | .text |
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| 25 | .global setjmp |
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| 26 | .type setjmp ,@function |
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| 27 | setjmp: |
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| 28 | |
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| 29 | stw r1, r1, #4 |
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| 30 | or r0, r0, r0 |
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| 31 | stw r2, r1, #8 |
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| 32 | or r0, r0, r0 |
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| 33 | stw r3, r1, #12 |
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| 34 | or r0, r0, r0 |
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| 35 | stw r4, r1, #16 |
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| 36 | or r0, r0, r0 |
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| 37 | stw r5, r1, #20 |
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| 38 | or r0, r0, r0 |
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| 39 | stw r6, r1, #24 |
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| 40 | or r0, r0, r0 |
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| 41 | stw r7, r1, #28 |
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| 42 | or r0, r0, r0 |
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| 43 | stw r8, r1, #32 |
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| 44 | or r0, r0, r0 |
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| 45 | stw r11, r1, #44 |
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| 46 | or r0, r0, r0 |
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| 47 | stw r12, r1, #48 |
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| 48 | or r0, r0, r0 |
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| 49 | stw r13, r1, #52 |
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| 50 | or r0, r0, r0 |
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| 51 | stw r14, r1, #56 |
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| 52 | or r0, r0, r0 |
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| 53 | stw r15, r1, #60 |
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| 54 | |
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| 55 | jal r0, r14 |
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| 56 | addi r11, r0, #0 |
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| 57 | .Lend1: |
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| 58 | .size setjmp,.Lend1-setjmp |
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| 59 | |
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| 60 | .global longjmp |
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| 61 | .type longjmp,@function |
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| 62 | longjmp: |
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| 63 | or r9, r1, r1 |
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| 64 | or r11, r2, r2 |
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| 65 | ldw r1, r1, #4 |
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| 66 | or r0, r0, r0 |
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| 67 | ldw r2, r1, #8 |
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| 68 | or r0, r0, r0 |
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| 69 | ldw r3, r1, #12 |
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| 70 | or r0, r0, r0 |
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| 71 | ldw r4, r1, #16 |
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| 72 | or r0, r0, r0 |
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| 73 | ldw r5, r1, #20 |
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| 74 | or r0, r0, r0 |
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| 75 | ldw r6, r1, #24 |
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| 76 | or r0, r0, r0 |
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| 77 | ldw r7, r1, #28 |
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| 78 | or r0, r0, r0 |
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| 79 | ldw r8, r1, #32 |
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| 80 | or r0, r0, r0 |
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| 81 | |
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| 82 | |
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| 83 | ldw r12, r1, #48 |
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| 84 | or r0, r0, r0 |
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| 85 | ldw r13, r1, #52 |
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| 86 | or r0, r0, r0 |
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| 87 | ldw r14, r1, #56 |
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| 88 | or r0, r0, r0 |
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| 89 | ldw r15, r1, #60 |
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| 90 | |
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| 91 | brne r0, r11, .L01 |
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| 92 | or r0, r0, r0 |
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| 93 | |
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| 94 | addi r11, r0, #1 |
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| 95 | .L01: |
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| 96 | jal r0, r14 |
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| 97 | or r0, r0, r0 |
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| 98 | .Lend2: |
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| 99 | .size longjmp,.Lend2-longjmp2 |
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