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594 lines
15 KiB
594 lines
15 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* NG2memcpy.S: Niagara-2 optimized memcpy. |
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* |
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* Copyright (C) 2007 David S. Miller (davem@davemloft.net) |
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*/ |
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#ifdef __KERNEL__ |
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#include <linux/linkage.h> |
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#include <asm/visasm.h> |
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#include <asm/asi.h> |
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#define GLOBAL_SPARE %g7 |
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#else |
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#define ASI_PNF 0x82 |
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#define ASI_BLK_P 0xf0 |
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#define ASI_BLK_INIT_QUAD_LDD_P 0xe2 |
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#define FPRS_FEF 0x04 |
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#ifdef MEMCPY_DEBUG |
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#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs; \ |
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clr %g1; clr %g2; clr %g3; clr %g5; subcc %g0, %g0, %g0; |
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#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs |
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#else |
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#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs |
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#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs |
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#endif |
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#define GLOBAL_SPARE %g5 |
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#endif |
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#ifndef STORE_ASI |
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#ifndef SIMULATE_NIAGARA_ON_NON_NIAGARA |
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#define STORE_ASI ASI_BLK_INIT_QUAD_LDD_P |
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#else |
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#define STORE_ASI 0x80 /* ASI_P */ |
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#endif |
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#endif |
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#ifndef EX_LD |
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#define EX_LD(x,y) x |
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#endif |
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#ifndef EX_LD_FP |
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#define EX_LD_FP(x,y) x |
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#endif |
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#ifndef EX_ST |
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#define EX_ST(x,y) x |
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#endif |
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#ifndef EX_ST_FP |
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#define EX_ST_FP(x,y) x |
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#endif |
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#ifndef LOAD |
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#define LOAD(type,addr,dest) type [addr], dest |
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#endif |
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#ifndef LOAD_BLK |
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#define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_P, dest |
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#endif |
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#ifndef STORE |
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#ifndef MEMCPY_DEBUG |
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#define STORE(type,src,addr) type src, [addr] |
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#else |
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#define STORE(type,src,addr) type##a src, [addr] 0x80 |
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#endif |
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#endif |
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#ifndef STORE_BLK |
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#define STORE_BLK(src,addr) stda src, [addr] ASI_BLK_P |
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#endif |
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#ifndef STORE_INIT |
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#define STORE_INIT(src,addr) stxa src, [addr] STORE_ASI |
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#endif |
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#ifndef FUNC_NAME |
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#define FUNC_NAME NG2memcpy |
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#endif |
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#ifndef PREAMBLE |
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#define PREAMBLE |
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#endif |
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#ifndef XCC |
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#define XCC xcc |
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#endif |
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#define FREG_FROB(x0, x1, x2, x3, x4, x5, x6, x7, x8) \ |
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faligndata %x0, %x1, %f0; \ |
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faligndata %x1, %x2, %f2; \ |
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faligndata %x2, %x3, %f4; \ |
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faligndata %x3, %x4, %f6; \ |
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faligndata %x4, %x5, %f8; \ |
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faligndata %x5, %x6, %f10; \ |
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faligndata %x6, %x7, %f12; \ |
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faligndata %x7, %x8, %f14; |
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#define FREG_MOVE_1(x0) \ |
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fsrc2 %x0, %f0; |
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#define FREG_MOVE_2(x0, x1) \ |
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fsrc2 %x0, %f0; \ |
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fsrc2 %x1, %f2; |
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#define FREG_MOVE_3(x0, x1, x2) \ |
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fsrc2 %x0, %f0; \ |
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fsrc2 %x1, %f2; \ |
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fsrc2 %x2, %f4; |
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#define FREG_MOVE_4(x0, x1, x2, x3) \ |
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fsrc2 %x0, %f0; \ |
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fsrc2 %x1, %f2; \ |
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fsrc2 %x2, %f4; \ |
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fsrc2 %x3, %f6; |
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#define FREG_MOVE_5(x0, x1, x2, x3, x4) \ |
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fsrc2 %x0, %f0; \ |
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fsrc2 %x1, %f2; \ |
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fsrc2 %x2, %f4; \ |
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fsrc2 %x3, %f6; \ |
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fsrc2 %x4, %f8; |
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#define FREG_MOVE_6(x0, x1, x2, x3, x4, x5) \ |
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fsrc2 %x0, %f0; \ |
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fsrc2 %x1, %f2; \ |
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fsrc2 %x2, %f4; \ |
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fsrc2 %x3, %f6; \ |
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fsrc2 %x4, %f8; \ |
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fsrc2 %x5, %f10; |
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#define FREG_MOVE_7(x0, x1, x2, x3, x4, x5, x6) \ |
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fsrc2 %x0, %f0; \ |
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fsrc2 %x1, %f2; \ |
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fsrc2 %x2, %f4; \ |
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fsrc2 %x3, %f6; \ |
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fsrc2 %x4, %f8; \ |
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fsrc2 %x5, %f10; \ |
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fsrc2 %x6, %f12; |
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#define FREG_MOVE_8(x0, x1, x2, x3, x4, x5, x6, x7) \ |
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fsrc2 %x0, %f0; \ |
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fsrc2 %x1, %f2; \ |
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fsrc2 %x2, %f4; \ |
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fsrc2 %x3, %f6; \ |
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fsrc2 %x4, %f8; \ |
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fsrc2 %x5, %f10; \ |
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fsrc2 %x6, %f12; \ |
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fsrc2 %x7, %f14; |
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#define FREG_LOAD_1(base, x0) \ |
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EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1) |
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#define FREG_LOAD_2(base, x0, x1) \ |
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EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); |
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#define FREG_LOAD_3(base, x0, x1, x2) \ |
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EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); |
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#define FREG_LOAD_4(base, x0, x1, x2, x3) \ |
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EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); |
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#define FREG_LOAD_5(base, x0, x1, x2, x3, x4) \ |
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EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1); |
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#define FREG_LOAD_6(base, x0, x1, x2, x3, x4, x5) \ |
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EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x28, %x5), NG2_retl_o2_plus_g1); |
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#define FREG_LOAD_7(base, x0, x1, x2, x3, x4, x5, x6) \ |
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EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x28, %x5), NG2_retl_o2_plus_g1); \ |
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EX_LD_FP(LOAD(ldd, base + 0x30, %x6), NG2_retl_o2_plus_g1); |
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.register %g2,#scratch |
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.register %g3,#scratch |
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.text |
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#ifndef EX_RETVAL |
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#define EX_RETVAL(x) x |
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__restore_fp: |
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VISExitHalf |
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__restore_asi: |
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retl |
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wr %g0, ASI_AIUS, %asi |
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ENTRY(NG2_retl_o2) |
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ba,pt %xcc, __restore_asi |
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mov %o2, %o0 |
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ENDPROC(NG2_retl_o2) |
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ENTRY(NG2_retl_o2_plus_1) |
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ba,pt %xcc, __restore_asi |
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add %o2, 1, %o0 |
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ENDPROC(NG2_retl_o2_plus_1) |
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ENTRY(NG2_retl_o2_plus_4) |
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ba,pt %xcc, __restore_asi |
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add %o2, 4, %o0 |
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ENDPROC(NG2_retl_o2_plus_4) |
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ENTRY(NG2_retl_o2_plus_8) |
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ba,pt %xcc, __restore_asi |
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add %o2, 8, %o0 |
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ENDPROC(NG2_retl_o2_plus_8) |
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ENTRY(NG2_retl_o2_plus_o4_plus_1) |
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add %o4, 1, %o4 |
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ba,pt %xcc, __restore_asi |
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add %o2, %o4, %o0 |
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ENDPROC(NG2_retl_o2_plus_o4_plus_1) |
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ENTRY(NG2_retl_o2_plus_o4_plus_8) |
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add %o4, 8, %o4 |
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ba,pt %xcc, __restore_asi |
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add %o2, %o4, %o0 |
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ENDPROC(NG2_retl_o2_plus_o4_plus_8) |
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ENTRY(NG2_retl_o2_plus_o4_plus_16) |
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add %o4, 16, %o4 |
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ba,pt %xcc, __restore_asi |
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add %o2, %o4, %o0 |
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ENDPROC(NG2_retl_o2_plus_o4_plus_16) |
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ENTRY(NG2_retl_o2_plus_g1_fp) |
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ba,pt %xcc, __restore_fp |
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add %o2, %g1, %o0 |
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ENDPROC(NG2_retl_o2_plus_g1_fp) |
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ENTRY(NG2_retl_o2_plus_g1_plus_64_fp) |
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add %g1, 64, %g1 |
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ba,pt %xcc, __restore_fp |
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add %o2, %g1, %o0 |
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ENDPROC(NG2_retl_o2_plus_g1_plus_64_fp) |
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ENTRY(NG2_retl_o2_plus_g1_plus_1) |
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add %g1, 1, %g1 |
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ba,pt %xcc, __restore_asi |
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add %o2, %g1, %o0 |
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ENDPROC(NG2_retl_o2_plus_g1_plus_1) |
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ENTRY(NG2_retl_o2_and_7_plus_o4) |
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and %o2, 7, %o2 |
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ba,pt %xcc, __restore_asi |
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add %o2, %o4, %o0 |
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ENDPROC(NG2_retl_o2_and_7_plus_o4) |
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ENTRY(NG2_retl_o2_and_7_plus_o4_plus_8) |
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and %o2, 7, %o2 |
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add %o4, 8, %o4 |
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ba,pt %xcc, __restore_asi |
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add %o2, %o4, %o0 |
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ENDPROC(NG2_retl_o2_and_7_plus_o4_plus_8) |
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#endif |
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.align 64 |
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.globl FUNC_NAME |
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.type FUNC_NAME,#function |
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FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */ |
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srlx %o2, 31, %g2 |
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cmp %g2, 0 |
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tne %xcc, 5 |
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PREAMBLE |
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mov %o0, %o3 |
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cmp %o2, 0 |
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be,pn %XCC, 85f |
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or %o0, %o1, GLOBAL_SPARE |
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cmp %o2, 16 |
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blu,a,pn %XCC, 80f |
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or GLOBAL_SPARE, %o2, GLOBAL_SPARE |
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/* 2 blocks (128 bytes) is the minimum we can do the block |
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* copy with. We need to ensure that we'll iterate at least |
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* once in the block copy loop. At worst we'll need to align |
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* the destination to a 64-byte boundary which can chew up |
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* to (64 - 1) bytes from the length before we perform the |
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* block copy loop. |
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* |
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* However, the cut-off point, performance wise, is around |
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* 4 64-byte blocks. |
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*/ |
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cmp %o2, (4 * 64) |
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blu,pt %XCC, 75f |
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andcc GLOBAL_SPARE, 0x7, %g0 |
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/* %o0: dst |
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* %o1: src |
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* %o2: len (known to be >= 128) |
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* |
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* The block copy loops can use %o4, %g2, %g3 as |
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* temporaries while copying the data. %o5 must |
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* be preserved between VISEntryHalf and VISExitHalf |
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*/ |
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LOAD(prefetch, %o1 + 0x000, #one_read) |
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LOAD(prefetch, %o1 + 0x040, #one_read) |
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LOAD(prefetch, %o1 + 0x080, #one_read) |
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/* Align destination on 64-byte boundary. */ |
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andcc %o0, (64 - 1), %o4 |
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be,pt %XCC, 2f |
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sub %o4, 64, %o4 |
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sub %g0, %o4, %o4 ! bytes to align dst |
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sub %o2, %o4, %o2 |
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1: subcc %o4, 1, %o4 |
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EX_LD(LOAD(ldub, %o1, %g1), NG2_retl_o2_plus_o4_plus_1) |
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EX_ST(STORE(stb, %g1, %o0), NG2_retl_o2_plus_o4_plus_1) |
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add %o1, 1, %o1 |
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bne,pt %XCC, 1b |
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add %o0, 1, %o0 |
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2: |
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/* Clobbers o5/g1/g2/g3/g7/icc/xcc. We must preserve |
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* o5 from here until we hit VISExitHalf. |
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*/ |
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VISEntryHalf |
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membar #Sync |
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alignaddr %o1, %g0, %g0 |
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add %o1, (64 - 1), %o4 |
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andn %o4, (64 - 1), %o4 |
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andn %o2, (64 - 1), %g1 |
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sub %o2, %g1, %o2 |
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and %o1, (64 - 1), %g2 |
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add %o1, %g1, %o1 |
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sub %o0, %o4, %g3 |
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brz,pt %g2, 190f |
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cmp %g2, 32 |
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blu,a 5f |
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cmp %g2, 16 |
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cmp %g2, 48 |
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blu,a 4f |
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cmp %g2, 40 |
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cmp %g2, 56 |
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blu 170f |
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nop |
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ba,a,pt %xcc, 180f |
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nop |
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4: /* 32 <= low bits < 48 */ |
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blu 150f |
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nop |
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ba,a,pt %xcc, 160f |
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nop |
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5: /* 0 < low bits < 32 */ |
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blu,a 6f |
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cmp %g2, 8 |
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cmp %g2, 24 |
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blu 130f |
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nop |
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ba,a,pt %xcc, 140f |
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nop |
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6: /* 0 < low bits < 16 */ |
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bgeu 120f |
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nop |
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/* fall through for 0 < low bits < 8 */ |
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110: sub %o4, 64, %g2 |
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EX_LD_FP(LOAD_BLK(%g2, %f0), NG2_retl_o2_plus_g1) |
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1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1) |
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FREG_FROB(f0, f2, f4, f6, f8, f10, f12, f14, f16) |
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EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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FREG_MOVE_8(f16, f18, f20, f22, f24, f26, f28, f30) |
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subcc %g1, 64, %g1 |
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add %o4, 64, %o4 |
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bne,pt %xcc, 1b |
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LOAD(prefetch, %o4 + 64, #one_read) |
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ba,pt %xcc, 195f |
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nop |
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120: sub %o4, 56, %g2 |
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FREG_LOAD_7(%g2, f0, f2, f4, f6, f8, f10, f12) |
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1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1) |
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FREG_FROB(f0, f2, f4, f6, f8, f10, f12, f16, f18) |
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EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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FREG_MOVE_7(f18, f20, f22, f24, f26, f28, f30) |
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subcc %g1, 64, %g1 |
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add %o4, 64, %o4 |
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bne,pt %xcc, 1b |
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LOAD(prefetch, %o4 + 64, #one_read) |
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ba,pt %xcc, 195f |
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nop |
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130: sub %o4, 48, %g2 |
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FREG_LOAD_6(%g2, f0, f2, f4, f6, f8, f10) |
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1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1) |
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FREG_FROB(f0, f2, f4, f6, f8, f10, f16, f18, f20) |
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EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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FREG_MOVE_6(f20, f22, f24, f26, f28, f30) |
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subcc %g1, 64, %g1 |
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add %o4, 64, %o4 |
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bne,pt %xcc, 1b |
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LOAD(prefetch, %o4 + 64, #one_read) |
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ba,pt %xcc, 195f |
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nop |
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140: sub %o4, 40, %g2 |
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FREG_LOAD_5(%g2, f0, f2, f4, f6, f8) |
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1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1) |
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FREG_FROB(f0, f2, f4, f6, f8, f16, f18, f20, f22) |
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EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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FREG_MOVE_5(f22, f24, f26, f28, f30) |
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subcc %g1, 64, %g1 |
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add %o4, 64, %o4 |
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bne,pt %xcc, 1b |
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LOAD(prefetch, %o4 + 64, #one_read) |
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ba,pt %xcc, 195f |
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nop |
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150: sub %o4, 32, %g2 |
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FREG_LOAD_4(%g2, f0, f2, f4, f6) |
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1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
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EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1) |
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FREG_FROB(f0, f2, f4, f6, f16, f18, f20, f22, f24) |
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EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1) |
|
FREG_MOVE_4(f24, f26, f28, f30) |
|
subcc %g1, 64, %g1 |
|
add %o4, 64, %o4 |
|
bne,pt %xcc, 1b |
|
LOAD(prefetch, %o4 + 64, #one_read) |
|
ba,pt %xcc, 195f |
|
nop |
|
|
|
160: sub %o4, 24, %g2 |
|
FREG_LOAD_3(%g2, f0, f2, f4) |
|
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
|
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1) |
|
FREG_FROB(f0, f2, f4, f16, f18, f20, f22, f24, f26) |
|
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1) |
|
FREG_MOVE_3(f26, f28, f30) |
|
subcc %g1, 64, %g1 |
|
add %o4, 64, %o4 |
|
bne,pt %xcc, 1b |
|
LOAD(prefetch, %o4 + 64, #one_read) |
|
ba,pt %xcc, 195f |
|
nop |
|
|
|
170: sub %o4, 16, %g2 |
|
FREG_LOAD_2(%g2, f0, f2) |
|
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
|
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1) |
|
FREG_FROB(f0, f2, f16, f18, f20, f22, f24, f26, f28) |
|
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1) |
|
FREG_MOVE_2(f28, f30) |
|
subcc %g1, 64, %g1 |
|
add %o4, 64, %o4 |
|
bne,pt %xcc, 1b |
|
LOAD(prefetch, %o4 + 64, #one_read) |
|
ba,pt %xcc, 195f |
|
nop |
|
|
|
180: sub %o4, 8, %g2 |
|
FREG_LOAD_1(%g2, f0) |
|
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
|
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1) |
|
FREG_FROB(f0, f16, f18, f20, f22, f24, f26, f28, f30) |
|
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1) |
|
FREG_MOVE_1(f30) |
|
subcc %g1, 64, %g1 |
|
add %o4, 64, %o4 |
|
bne,pt %xcc, 1b |
|
LOAD(prefetch, %o4 + 64, #one_read) |
|
ba,pt %xcc, 195f |
|
nop |
|
|
|
190: |
|
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1) |
|
subcc %g1, 64, %g1 |
|
EX_LD_FP(LOAD_BLK(%o4, %f0), NG2_retl_o2_plus_g1_plus_64) |
|
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1_plus_64) |
|
add %o4, 64, %o4 |
|
bne,pt %xcc, 1b |
|
LOAD(prefetch, %o4 + 64, #one_read) |
|
|
|
195: |
|
add %o4, %g3, %o0 |
|
membar #Sync |
|
|
|
VISExitHalf |
|
|
|
/* %o2 contains any final bytes still needed to be copied |
|
* over. If anything is left, we copy it one byte at a time. |
|
*/ |
|
brz,pt %o2, 85f |
|
sub %o0, %o1, GLOBAL_SPARE |
|
ba,a,pt %XCC, 90f |
|
nop |
|
|
|
.align 64 |
|
75: /* 16 < len <= 64 */ |
|
bne,pn %XCC, 75f |
|
sub %o0, %o1, GLOBAL_SPARE |
|
|
|
72: |
|
andn %o2, 0xf, %o4 |
|
and %o2, 0xf, %o2 |
|
1: subcc %o4, 0x10, %o4 |
|
EX_LD(LOAD(ldx, %o1, %o5), NG2_retl_o2_plus_o4_plus_16) |
|
add %o1, 0x08, %o1 |
|
EX_LD(LOAD(ldx, %o1, %g1), NG2_retl_o2_plus_o4_plus_16) |
|
sub %o1, 0x08, %o1 |
|
EX_ST(STORE(stx, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_o4_plus_16) |
|
add %o1, 0x8, %o1 |
|
EX_ST(STORE(stx, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_o4_plus_8) |
|
bgu,pt %XCC, 1b |
|
add %o1, 0x8, %o1 |
|
73: andcc %o2, 0x8, %g0 |
|
be,pt %XCC, 1f |
|
nop |
|
sub %o2, 0x8, %o2 |
|
EX_LD(LOAD(ldx, %o1, %o5), NG2_retl_o2_plus_8) |
|
EX_ST(STORE(stx, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_8) |
|
add %o1, 0x8, %o1 |
|
1: andcc %o2, 0x4, %g0 |
|
be,pt %XCC, 1f |
|
nop |
|
sub %o2, 0x4, %o2 |
|
EX_LD(LOAD(lduw, %o1, %o5), NG2_retl_o2_plus_4) |
|
EX_ST(STORE(stw, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_4) |
|
add %o1, 0x4, %o1 |
|
1: cmp %o2, 0 |
|
be,pt %XCC, 85f |
|
nop |
|
ba,pt %xcc, 90f |
|
nop |
|
|
|
75: |
|
andcc %o0, 0x7, %g1 |
|
sub %g1, 0x8, %g1 |
|
be,pn %icc, 2f |
|
sub %g0, %g1, %g1 |
|
sub %o2, %g1, %o2 |
|
|
|
1: subcc %g1, 1, %g1 |
|
EX_LD(LOAD(ldub, %o1, %o5), NG2_retl_o2_plus_g1_plus_1) |
|
EX_ST(STORE(stb, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_g1_plus_1) |
|
bgu,pt %icc, 1b |
|
add %o1, 1, %o1 |
|
|
|
2: add %o1, GLOBAL_SPARE, %o0 |
|
andcc %o1, 0x7, %g1 |
|
bne,pt %icc, 8f |
|
sll %g1, 3, %g1 |
|
|
|
cmp %o2, 16 |
|
bgeu,pt %icc, 72b |
|
nop |
|
ba,a,pt %xcc, 73b |
|
|
|
8: mov 64, GLOBAL_SPARE |
|
andn %o1, 0x7, %o1 |
|
EX_LD(LOAD(ldx, %o1, %g2), NG2_retl_o2) |
|
sub GLOBAL_SPARE, %g1, GLOBAL_SPARE |
|
andn %o2, 0x7, %o4 |
|
sllx %g2, %g1, %g2 |
|
1: add %o1, 0x8, %o1 |
|
EX_LD(LOAD(ldx, %o1, %g3), NG2_retl_o2_and_7_plus_o4) |
|
subcc %o4, 0x8, %o4 |
|
srlx %g3, GLOBAL_SPARE, %o5 |
|
or %o5, %g2, %o5 |
|
EX_ST(STORE(stx, %o5, %o0), NG2_retl_o2_and_7_plus_o4_plus_8) |
|
add %o0, 0x8, %o0 |
|
bgu,pt %icc, 1b |
|
sllx %g3, %g1, %g2 |
|
|
|
srl %g1, 3, %g1 |
|
andcc %o2, 0x7, %o2 |
|
be,pn %icc, 85f |
|
add %o1, %g1, %o1 |
|
ba,pt %xcc, 90f |
|
sub %o0, %o1, GLOBAL_SPARE |
|
|
|
.align 64 |
|
80: /* 0 < len <= 16 */ |
|
andcc GLOBAL_SPARE, 0x3, %g0 |
|
bne,pn %XCC, 90f |
|
sub %o0, %o1, GLOBAL_SPARE |
|
|
|
1: |
|
subcc %o2, 4, %o2 |
|
EX_LD(LOAD(lduw, %o1, %g1), NG2_retl_o2_plus_4) |
|
EX_ST(STORE(stw, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_4) |
|
bgu,pt %XCC, 1b |
|
add %o1, 4, %o1 |
|
|
|
85: retl |
|
mov EX_RETVAL(%o3), %o0 |
|
|
|
.align 32 |
|
90: |
|
subcc %o2, 1, %o2 |
|
EX_LD(LOAD(ldub, %o1, %g1), NG2_retl_o2_plus_1) |
|
EX_ST(STORE(stb, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_1) |
|
bgu,pt %XCC, 90b |
|
add %o1, 1, %o1 |
|
retl |
|
mov EX_RETVAL(%o3), %o0 |
|
|
|
.size FUNC_NAME, .-FUNC_NAME
|
|
|