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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:
2.5 KB
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| 1 | # setjmp/longjmp for Frv. The jmpbuf looks like this: |
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| 2 | # |
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| 3 | # Register jmpbuf offset |
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| 4 | # R16-R31 0x0-0x03c |
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| 5 | # R48-R63 0x40-0x7c |
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| 6 | # FR16-FR31 0x80-0xbc |
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| 7 | # FR48-FR63 0xc0-0xfc |
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| 8 | # LR 0x100 |
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| 9 | # SP 0x104 |
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| 10 | # FP 0x108 |
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| 11 | # |
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| 12 | # R8 contains the pointer to jmpbuf |
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| 13 | |
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| 14 | #include <frv-asm.h> |
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| 15 | |
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| 16 | .text |
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| 17 | .global EXT(setjmp) |
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| 18 | .type EXT(setjmp),@function |
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| 19 | EXT(setjmp): |
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| 20 | stdi gr16, @(gr8,0) |
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| 21 | stdi gr18, @(gr8,8) |
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| 22 | stdi gr20, @(gr8,16) |
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| 23 | stdi gr22, @(gr8,24) |
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| 24 | stdi gr24, @(gr8,32) |
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| 25 | stdi gr26, @(gr8,40) |
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| 26 | stdi gr28, @(gr8,48) |
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| 27 | stdi gr30, @(gr8,56) |
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| 28 | #if __FRV_GPR__ != 32 |
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| 29 | stdi gr48, @(gr8,64) |
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| 30 | stdi gr50, @(gr8,72) |
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| 31 | stdi gr52, @(gr8,80) |
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| 32 | stdi gr54, @(gr8,88) |
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| 33 | stdi gr56, @(gr8,96) |
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| 34 | stdi gr58, @(gr8,104) |
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| 35 | stdi gr60, @(gr8,112) |
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| 36 | stdi gr62, @(gr8,120) |
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| 37 | #endif |
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| 38 | |
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| 39 | #if __FRV_FPR__ != 0 |
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| 40 | stdfi fr16, @(gr8,128) |
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| 41 | stdfi fr18, @(gr8,136) |
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| 42 | stdfi fr20, @(gr8,144) |
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| 43 | stdfi fr22, @(gr8,152) |
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| 44 | stdfi fr24, @(gr8,160) |
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| 45 | stdfi fr26, @(gr8,168) |
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| 46 | stdfi fr28, @(gr8,176) |
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| 47 | stdfi fr30, @(gr8,184) |
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| 48 | #if __FRV_FPR__ != 32 |
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| 49 | stdfi fr48, @(gr8,192) |
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| 50 | stdfi fr50, @(gr8,200) |
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| 51 | stdfi fr52, @(gr8,208) |
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| 52 | stdfi fr54, @(gr8,216) |
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| 53 | stdfi fr56, @(gr8,224) |
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| 54 | stdfi fr58, @(gr8,232) |
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| 55 | stdfi fr60, @(gr8,240) |
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| 56 | stdfi fr62, @(gr8,248) |
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| 57 | #endif |
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| 58 | #endif |
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| 59 | |
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| 60 | movsg lr, gr4 |
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| 61 | sti gr4, @(gr8,256) |
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| 62 | sti sp, @(gr8,260) |
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| 63 | sti fp, @(gr8,264) |
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| 64 | |
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| 65 | mov gr0,gr8 |
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| 66 | ret |
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| 67 | .Lend1: |
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| 68 | .size EXT(setjmp),.Lend1-EXT(setjmp) |
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| 69 | |
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| 70 | .global EXT(longjmp) |
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| 71 | .type EXT(longjmp),@function |
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| 72 | EXT(longjmp): |
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| 73 | lddi @(gr8,0), gr16 |
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| 74 | lddi @(gr8,8), gr18 |
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| 75 | lddi @(gr8,16), gr20 |
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| 76 | lddi @(gr8,24), gr22 |
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| 77 | lddi @(gr8,32), gr24 |
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| 78 | lddi @(gr8,40), gr26 |
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| 79 | lddi @(gr8,48), gr28 |
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| 80 | lddi @(gr8,56), gr30 |
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| 81 | #if __FRV_GPR__ != 32 |
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| 82 | lddi @(gr8,64), gr48 |
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| 83 | lddi @(gr8,72), gr50 |
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| 84 | lddi @(gr8,80), gr52 |
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| 85 | lddi @(gr8,88), gr54 |
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| 86 | lddi @(gr8,96), gr56 |
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| 87 | lddi @(gr8,104), gr58 |
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| 88 | lddi @(gr8,112), gr60 |
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| 89 | lddi @(gr8,120), gr62 |
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| 90 | #endif |
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| 91 | |
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| 92 | #if __FRV_FPR__ != 0 |
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| 93 | lddfi @(gr8,128), fr16 |
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| 94 | lddfi @(gr8,136), fr18 |
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| 95 | lddfi @(gr8,144), fr20 |
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| 96 | lddfi @(gr8,152), fr22 |
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| 97 | lddfi @(gr8,160), fr24 |
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| 98 | lddfi @(gr8,168), fr26 |
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| 99 | lddfi @(gr8,176), fr28 |
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| 100 | lddfi @(gr8,184), fr30 |
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| 101 | #if __FRV_FPR__ != 32 |
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| 102 | lddfi @(gr8,192), fr48 |
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| 103 | lddfi @(gr8,200), fr50 |
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| 104 | lddfi @(gr8,208), fr52 |
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| 105 | lddfi @(gr8,216), fr54 |
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| 106 | lddfi @(gr8,224), fr56 |
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| 107 | lddfi @(gr8,232), fr58 |
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| 108 | lddfi @(gr8,240), fr60 |
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| 109 | lddfi @(gr8,248), fr62 |
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| 110 | #endif |
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| 111 | #endif |
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| 112 | |
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| 113 | ldi @(gr8,256), gr4 |
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| 114 | movgs gr4,lr |
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| 115 | |
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| 116 | ldi @(gr8,260), sp |
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| 117 | ldi @(gr8,264), fp |
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| 118 | |
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| 119 | # Value to return is in r9. If zero, return 1 |
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| 120 | cmp gr9, gr0, icc0 |
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| 121 | setlos #1, gr8 |
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| 122 | ckne icc0, cc4 |
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| 123 | cmov gr9, gr8, cc4, 1 |
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| 124 | ret |
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| 125 | .Lend2: |
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| 126 | .size EXT(longjmp),.Lend2-EXT(longjmp) |
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