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Diffstat (limited to 'mozilla/nsprpub/pr/src/md/unix/os_ReliantUNIX.s')
| -rw-r--r-- | mozilla/nsprpub/pr/src/md/unix/os_ReliantUNIX.s | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/mozilla/nsprpub/pr/src/md/unix/os_ReliantUNIX.s b/mozilla/nsprpub/pr/src/md/unix/os_ReliantUNIX.s new file mode 100644 index 0000000..7aef248 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/unix/os_ReliantUNIX.s @@ -0,0 +1,128 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* We want position independent code */ +#define PIC + +#include <sys/asm.h> +#include <sys/regdef.h> +#include <sys/syscall.h> + + .file 1 "os_ReliantUNIX.s" + .option pic2 + .text + + .align 2 + .globl getcxt + .ent getcxt +getcxt: + .frame sp,0,$31 # vars= 0, regs= 0/0, args= 0, extra= 0 + # saved integer regs + sw ra,180(a0) # gpregs[CXT_EPC] + sw gp,152(a0) # gpregs[CXT_GP] + sw sp,156(a0) # gpregs[CXT_SP] + sw s8,160(a0) # gpregs[CXT_S8] + sw s0,104(a0) # gpregs[CXT_S0] + sw s1,108(a0) # gpregs[CXT_S1] + sw s2,112(a0) # gpregs[CXT_S2] + sw s3,116(a0) # gpregs[CXT_S3] + sw s4,120(a0) # gpregs[CXT_S4] + sw s5,124(a0) # gpregs[CXT_S5] + sw s6,128(a0) # gpregs[CXT_S6] + sw s7,132(a0) # gpregs[CXT_S7] + # csr + cfc1 v0,$31 + # saved float regs + s.d $f20,264(a0) # fpregs.fp_r.fp_dregs[10] + s.d $f22,272(a0) # fpregs.fp_r.fp_dregs[11] + s.d $f24,280(a0) # fpregs.fp_r.fp_dregs[12] + s.d $f26,288(a0) # fpregs.fp_r.fp_dregs[13] + s.d $f28,296(a0) # fpregs.fp_r.fp_dregs[14] + s.d $f30,304(a0) # fpregs.fp_r.fp_dregs[15] + sw v0,312(a0) # fpregs.fp_csr + + # give no illusions about the contents + li v0,0x0c # UC_CPU | UC_MAU + sw v0,0(a0) # uc_flags + + move v0,zero + j ra + .end getcxt + + .align 2 + .globl setcxt + .ent setcxt +setcxt: + .frame sp,0,$31 # vars= 0, regs= 0/0, args= 0, extra= 0 + lw v0,312(a0) # fpregs.fp_csr + li v1,0xfffc0fff # mask out exception cause bits + and v0,v0,v1 + # saved integer regs + lw t9,180(a0) # gpregs[CXT_EPC] + lw ra,180(a0) # gpregs[CXT_EPC] + lw gp,152(a0) # gpregs[CXT_GP] + lw sp,156(a0) # gpregs[CXT_SP] + ctc1 v0,$31 # fp_csr + lw s8,160(a0) # gpregs[CXT_S8] + lw s0,104(a0) # gpregs[CXT_S0] + lw s1,108(a0) # gpregs[CXT_S1] + lw s2,112(a0) # gpregs[CXT_S2] + lw s3,116(a0) # gpregs[CXT_S3] + lw s4,120(a0) # gpregs[CXT_S4] + lw s5,124(a0) # gpregs[CXT_S5] + lw s6,128(a0) # gpregs[CXT_S6] + lw s7,132(a0) # gpregs[CXT_S7] + # saved float regs + l.d $f20,264(a0) # fpregs.fp_r.fp_dregs[10] + l.d $f22,272(a0) # fpregs.fp_r.fp_dregs[11] + l.d $f24,280(a0) # fpregs.fp_r.fp_dregs[12] + l.d $f26,288(a0) # fpregs.fp_r.fp_dregs[13] + l.d $f28,296(a0) # fpregs.fp_r.fp_dregs[14] + l.d $f30,304(a0) # fpregs.fp_r.fp_dregs[15] + + # load these, too + # they were not saved, but maybe the user modified them... + lw v0,48(a0) + lw v1,52(a0) + lw a1,60(a0) + lw a2,64(a0) + lw a3,68(a0) + lw a0,56(a0) # there is no way back + + j ra + + .end setcxt |