diff options
Diffstat (limited to 'sys/contrib/ia64/libuwx/src/uwx_self_context.s')
| -rw-r--r-- | sys/contrib/ia64/libuwx/src/uwx_self_context.s | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/sys/contrib/ia64/libuwx/src/uwx_self_context.s b/sys/contrib/ia64/libuwx/src/uwx_self_context.s new file mode 100644 index 0000000..fb89e76 --- /dev/null +++ b/sys/contrib/ia64/libuwx/src/uwx_self_context.s @@ -0,0 +1,153 @@ +/* + * Copyright (c) 2002,2003 Hewlett-Packard Company + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifdef _LP64 +#define SWIZZLE add +#define STPTR st8 +#else +#define SWIZZLE addp4 +#define STPTR st4 +#endif + +rRP = r14 +rPFS = r15 +rUNAT = r16 +rRNAT = r17 +rENV0 = r18 +rENV1 = r19 +rENV2 = r20 +rNSLOT = r21 +rBSP = r22 +rPBSP = r23 +rRSC = r24 +rNATP = r25 +rBIAS = r26 +rRSC0 = r27 +rTMP1 = r28 +rTMP2 = r29 +rTMP3 = r30 +rTMP4 = r31 +rTMP5 = r8 + + .text + .proc uwx_self_init_context + .global uwx_self_init_context +uwx_self_init_context: + .prologue + alloc rPFS = ar.pfs, 1, 0, 0, 0 + mov rUNAT = ar.unat + .body + SWIZZLE rENV0 = r0, r32 // rENV0 = &env + ;; + flushrs + extr.u rNSLOT = rPFS, 7, 7 // nslots = pfs.sol + mov rRP = b0 + ;; + mov rRSC = ar.rsc + add rENV1 = 120, rENV0 // rENV1 = &env->context.gr[0] + add rENV2 = 128, rENV0 // rENV2 = &env->context.gr[1] + ;; + and rRSC0 = -4, rRSC // clear ar.rsc.mode + adds rNATP = 0x1f8, r0 + mov rTMP1 = b1 + ;; + st8.spill [rENV1] = r4, 16 // env+120: r4 + st8.spill [rENV2] = r5, 16 // env+128: r5 + mov rTMP2 = b2 + ;; + st8.spill [rENV1] = r6, 16 // env+136: r6 + st8.spill [rENV2] = r7, 16 // env+144: r7 + mov rTMP3 = b3 + ;; + st8 [rENV1] = rTMP1, 16 // env+152: b1 + st8 [rENV2] = rTMP2, 16 // env+160: b2 + mov rTMP1 = b4 + ;; + st8 [rENV1] = rTMP3, 16 // env+168: b3 + st8 [rENV2] = rTMP1, 16 // env+176: b4 + mov rTMP2 = b5 + ;; + st8 [rENV1] = rTMP2 // env+184: b5 + mov ar.rsc = rRSC0 // enforced lazy mode + add rENV1 = 8, rENV0 + ;; + mov rRNAT = ar.rnat // get copy of ar.rnat + movl rTMP1 = 0x7fec8f00000000 // valid_regs: ip, sp, bsp, cfm, + // preds, rnat, unat, lc, grs, brs + ;; + mov ar.rsc = rRSC // restore ar.rsc + mov rBSP = ar.bsp + add rTMP3 = 120, rENV0 // spill_loc = &env->context.gr[0] + ;; + mov rTMP2 = ar.unat + nop + extr.u rTMP3 = rTMP3, 3, 6 // bitpos = spill_loc{8:3} + ;; + or rNATP = rBSP, rNATP // natp = bsp | 0x1f8 + sub rTMP4 = 64, rTMP3 // (64 - bitpos) + shr rTMP5 = rTMP2, rTMP3 // (unat >> bitpos) + ;; + sub rBIAS = rNATP, rBSP // bias = (natp - bsp) ... + nop + shl rTMP2 = rTMP2, rTMP4 // (unat << (64 - bitpos)) + ;; + or rTMP2 = rTMP2, rTMP5 // rotate_right(unat, bitpos) + extr.u rBIAS = rBIAS, 3, 6 // ... div 8 + mov rTMP4 = pr + ;; + st8 [rENV0] = rTMP1, 16 // env+0: valid_regs mask + st8 [rENV1] = rRP, 24 // env+8: ip (my rp) + add rBIAS = rNSLOT, rBIAS // bias += nslots + ;; + cmp.lt p6, p0 = 63, rBIAS // if (63 < bias) ... + cmp.lt p7, p0 = 126, rBIAS // if (126 < bias) ... + nop + ;; + st8 [rENV0] = r12, 48 // env+16: sp + st8 [rENV1] = rPFS, 40 // env+32: cfm (my pfs) +(p6) add rNSLOT = 1, rNSLOT // ... nslots++ + ;; + st8 [rENV0] = rTMP4, 24 // env+64: preds + st8 [rENV1] = rTMP2, 24 // env+72: priunat +(p7) add rNSLOT = 1, rNSLOT // ... nslots++ + ;; + st8 [rENV0] = rRNAT, -64 // env+88: rnat + st8 [rENV1] = rUNAT, 8 // env+96: unat + dep.z rTMP3 = rNSLOT, 3, 7 // (nslots << 3) + ;; + sub rPBSP = rBSP, rTMP3 // prev_bsp = bsp - (nslots << 3) + mov rTMP3 = ar.fpsr + mov rTMP1 = ar.lc + ;; + st8 [rENV0] = rPBSP // env+24: bsp (my prev bsp) + st8 [rENV1] = rTMP3, 8 // env+104: fpsr + add rENV2 = 320, rENV2 // rENV2 = &env->context.rstate + ;; + st8 [rENV1] = rTMP1 // env+112: lc + STPTR [rENV2] = r0 // env+512: env->rstate = 0 + nop + ;; + mov ar.unat = rUNAT + mov ret0 = r0 // return UWX_OK + br.ret.sptk b0 + .endp + |
