| 32,144 → 32,164 |
|---|
| .global context_restore |
| |
| context_save: |
| alloc loc0 = ar.pfs, 1, 9, 0, 0 |
| alloc loc0 = ar.pfs, 1, 10, 0, 0 |
| mov loc1 = ar.unat ;; |
| |
| st8 [in0] = loc0, 8 ;; /* save ar.pfs */ |
| st8 [in0] = loc1, 8 ;; /* save ar.unat (caller) */ |
| mov loc2 = in0 ;; |
| add in0 = 8, in0 ;; /* skip ar.unat (callee) */ |
| |
| /* |
| * TODO: save the rest of the context registers. |
| */ |
| |
| /* |
| * Save general registers |
| * Save general registers including NaT bits |
| */ |
| st8 [in0] = r1, 8 ;; |
| st8 [in0] = r2, 8 ;; |
| st8 [in0] = r3, 8 ;; |
| st8 [in0] = r4, 8 ;; |
| st8 [in0] = r5, 8 ;; |
| st8 [in0] = r6, 8 ;; |
| st8 [in0] = r7, 8 ;; |
| st8 [in0] = r8, 8 ;; |
| st8 [in0] = r9, 8 ;; |
| st8 [in0] = r10, 8 ;; |
| st8 [in0] = r11, 8 ;; |
| st8 [in0] = r12, 8 ;; /* save sp */ |
| st8 [in0] = r13, 8 ;; |
| st8 [in0] = r14, 8 ;; |
| st8 [in0] = r15, 8 ;; |
| st8 [in0] = r16, 8 ;; |
| st8 [in0] = r17, 8 ;; |
| st8 [in0] = r18, 8 ;; |
| st8 [in0] = r19, 8 ;; |
| st8 [in0] = r20, 8 ;; |
| st8 [in0] = r21, 8 ;; |
| st8 [in0] = r22, 8 ;; |
| st8 [in0] = r23, 8 ;; |
| st8 [in0] = r24, 8 ;; |
| st8 [in0] = r25, 8 ;; |
| st8 [in0] = r26, 8 ;; |
| st8 [in0] = r27, 8 ;; |
| st8 [in0] = r28, 8 ;; |
| st8 [in0] = r29, 8 ;; |
| st8 [in0] = r30, 8 ;; |
| st8 [in0] = r31, 8 ;; |
| st8.spill [in0] = r1, 8 ;; |
| st8.spill [in0] = r2, 8 ;; |
| st8.spill [in0] = r3, 8 ;; |
| st8.spill [in0] = r4, 8 ;; |
| st8.spill [in0] = r5, 8 ;; |
| st8.spill [in0] = r6, 8 ;; |
| st8.spill [in0] = r7, 8 ;; |
| st8.spill [in0] = r8, 8 ;; |
| st8.spill [in0] = r9, 8 ;; |
| st8.spill [in0] = r10, 8 ;; |
| st8.spill [in0] = r11, 8 ;; |
| st8.spill [in0] = r12, 8 ;; /* save sp */ |
| st8.spill [in0] = r13, 8 ;; |
| st8.spill [in0] = r14, 8 ;; |
| st8.spill [in0] = r15, 8 ;; |
| st8.spill [in0] = r16, 8 ;; |
| st8.spill [in0] = r17, 8 ;; |
| st8.spill [in0] = r18, 8 ;; |
| st8.spill [in0] = r19, 8 ;; |
| st8.spill [in0] = r20, 8 ;; |
| st8.spill [in0] = r21, 8 ;; |
| st8.spill [in0] = r22, 8 ;; |
| st8.spill [in0] = r23, 8 ;; |
| st8.spill [in0] = r24, 8 ;; |
| st8.spill [in0] = r25, 8 ;; |
| st8.spill [in0] = r26, 8 ;; |
| st8.spill [in0] = r27, 8 ;; |
| st8.spill [in0] = r28, 8 ;; |
| st8.spill [in0] = r29, 8 ;; |
| st8.spill [in0] = r30, 8 ;; |
| st8.spill [in0] = r31, 8 ;; |
| |
| mov loc3 = ar.unat ;; |
| st8 [loc2] = loc3 /* save ar.unat (callee) */ |
| |
| /* |
| * Save branch registers |
| */ |
| mov loc1 = b0 ;; |
| st8 [in0] = loc1, 8 /* save pc */ |
| mov loc2 = b1 ;; |
| st8 [in0] = loc2, 8 |
| mov loc3 = b2 ;; |
| mov loc2 = b0 ;; |
| st8 [in0] = loc2, 8 /* save pc */ |
| mov loc3 = b1 ;; |
| st8 [in0] = loc3, 8 |
| mov loc4 = b3 ;; |
| mov loc4 = b2 ;; |
| st8 [in0] = loc4, 8 |
| mov loc5 = b4 ;; |
| mov loc5 = b3 ;; |
| st8 [in0] = loc5, 8 |
| mov loc6 = b5 ;; |
| mov loc6 = b4 ;; |
| st8 [in0] = loc6, 8 |
| mov loc7 = b6 ;; |
| mov loc7 = b5 ;; |
| st8 [in0] = loc7, 8 |
| mov loc8 = b7 ;; |
| mov loc8 = b6 ;; |
| st8 [in0] = loc8, 8 |
| mov loc9 = b7 ;; |
| st8 [in0] = loc9, 8 |
| |
| /* |
| * Save predicate registers |
| */ |
| mov loc1 = pr ;; |
| st8 [in0] = loc1, 8 |
| mov loc2 = pr ;; |
| st8 [in0] = loc2, 8 |
| |
| mov ar.pfs = loc0 |
| mov ar.unat = loc1 |
| |
| add r8 = r0, r0, 1 /* context_save returns 1 */ |
| br.ret.sptk.many b0 |
| |
| context_restore: |
| alloc loc0 = ar.pfs, 1, 9, 0, 0 |
| alloc loc0 = ar.pfs, 1, 10, 0, 0 ;; |
| |
| /* |
| * TODO: restore the rest of the context registers. |
| */ |
| |
| ld8 loc0 = [in0], 8 ;; /* load pfs */ |
| ld8 loc1 = [in0], 8 ;; /* load unat (caller) */ |
| ld8 loc2 = [in0], 8 ;; /* load unat (callee) */ |
| |
| mov ar.unat = loc2 ;; |
| |
| /* |
| * Restore general registers |
| * Restore general registers including NaT bits |
| */ |
| ld8 r1 = [in0], 8 ;; |
| ld8 r2 = [in0], 8 ;; |
| ld8 r3 = [in0], 8 ;; |
| ld8 r4 = [in0], 8 ;; |
| ld8 r5 = [in0], 8 ;; |
| ld8 r6 = [in0], 8 ;; |
| ld8 r7 = [in0], 8 ;; |
| ld8 r8 = [in0], 8 ;; |
| ld8 r9 = [in0], 8 ;; |
| ld8 r10 = [in0], 8 ;; |
| ld8 r11 = [in0], 8 ;; |
| ld8 r12 = [in0], 8 ;; /* restore sp */ |
| ld8 r13 = [in0], 8 ;; |
| ld8 r14 = [in0], 8 ;; |
| ld8 r15 = [in0], 8 ;; |
| ld8 r16 = [in0], 8 ;; |
| ld8 r17 = [in0], 8 ;; |
| ld8 r18 = [in0], 8 ;; |
| ld8 r19 = [in0], 8 ;; |
| ld8 r20 = [in0], 8 ;; |
| ld8 r21 = [in0], 8 ;; |
| ld8 r22 = [in0], 8 ;; |
| ld8 r23 = [in0], 8 ;; |
| ld8 r24 = [in0], 8 ;; |
| ld8 r25 = [in0], 8 ;; |
| ld8 r26 = [in0], 8 ;; |
| ld8 r27 = [in0], 8 ;; |
| ld8 r28 = [in0], 8 ;; |
| ld8 r29 = [in0], 8 ;; |
| ld8 r30 = [in0], 8 ;; |
| ld8 r31 = [in0], 8 ;; |
| ld8.fill r1 = [in0], 8 ;; |
| ld8.fill r2 = [in0], 8 ;; |
| ld8.fill r3 = [in0], 8 ;; |
| ld8.fill r4 = [in0], 8 ;; |
| ld8.fill r5 = [in0], 8 ;; |
| ld8.fill r6 = [in0], 8 ;; |
| ld8.fill r7 = [in0], 8 ;; |
| ld8.fill r8 = [in0], 8 ;; |
| ld8.fill r9 = [in0], 8 ;; |
| ld8.fill r10 = [in0], 8 ;; |
| ld8.fill r11 = [in0], 8 ;; |
| ld8.fill r12 = [in0], 8 ;; /* restore sp */ |
| ld8.fill r13 = [in0], 8 ;; |
| ld8.fill r14 = [in0], 8 ;; |
| ld8.fill r15 = [in0], 8 ;; |
| ld8.fill r16 = [in0], 8 ;; |
| ld8.fill r17 = [in0], 8 ;; |
| ld8.fill r18 = [in0], 8 ;; |
| ld8.fill r19 = [in0], 8 ;; |
| ld8.fill r20 = [in0], 8 ;; |
| ld8.fill r21 = [in0], 8 ;; |
| ld8.fill r22 = [in0], 8 ;; |
| ld8.fill r23 = [in0], 8 ;; |
| ld8.fill r24 = [in0], 8 ;; |
| ld8.fill r25 = [in0], 8 ;; |
| ld8.fill r26 = [in0], 8 ;; |
| ld8.fill r27 = [in0], 8 ;; |
| ld8.fill r28 = [in0], 8 ;; |
| ld8.fill r29 = [in0], 8 ;; |
| ld8.fill r30 = [in0], 8 ;; |
| ld8.fill r31 = [in0], 8 ;; |
| |
| /* |
| * Restore branch registers |
| */ |
| ld8 loc1 = [in0], 8 ;; /* restore pc */ |
| mov b0 = loc1 |
| ld8 loc2 = [in0], 8 ;; |
| mov b1 = loc2 |
| ld8 loc2 = [in0], 8 ;; /* restore pc */ |
| mov b0 = loc2 |
| ld8 loc3 = [in0], 8 ;; |
| mov b2 = loc3 |
| mov b1 = loc3 |
| ld8 loc4 = [in0], 8 ;; |
| mov b3 = loc4 |
| mov b2 = loc4 |
| ld8 loc5 = [in0], 8 ;; |
| mov b4 = loc5 |
| mov b3 = loc5 |
| ld8 loc6 = [in0], 8 ;; |
| mov b5 = loc6 |
| mov b4 = loc6 |
| ld8 loc7 = [in0], 8 ;; |
| mov b6 = loc7 |
| mov b5 = loc7 |
| ld8 loc8 = [in0], 8 ;; |
| mov b7 = loc8 |
| mov b6 = loc8 |
| ld8 loc9 = [in0], 8 ;; |
| mov b7 = loc9 |
| |
| ld8 loc1 = [in0], 8 ;; |
| mov pr = loc1, ~0 |
| /* |
| * Restore predicate registers |
| */ |
| ld8 loc2 = [in0], 8 ;; |
| mov pr = loc2, ~0 |
| |
| mov ar.pfs = loc0 |
| mov ar.unat = loc1 |
| |
| mov r8 = r0 /* context_restore returns 0 */ |
| br.ret.sptk.many b0 |