/* Copyright Oliver Kowalke 2009. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */ /****************************************************** * * * ------------------------------------------------- * * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | * * ------------------------------------------------- * * | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | * * ------------------------------------------------- * * | F14 | F15 | F16 | F17 | * * ------------------------------------------------- * * ------------------------------------------------- * * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | * * ------------------------------------------------- * * | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | * * ------------------------------------------------- * * | F18 | F19 | F20 | F21 | * * ------------------------------------------------- * * ------------------------------------------------- * * | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | * * ------------------------------------------------- * * | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | * * ------------------------------------------------- * * | F22 | F23 | F24 | F25 | * * ------------------------------------------------- * * ------------------------------------------------- * * | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | * * ------------------------------------------------- * * | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | * * ------------------------------------------------- * * | F26 | F27 | F28 | F29 | * * ------------------------------------------------- * * ------------------------------------------------- * * | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | * * ------------------------------------------------- * * | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | * * ------------------------------------------------- * * | F30 | F31 | fpscr | R13 | R14 | * * ------------------------------------------------- * * ------------------------------------------------- * * | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | * * ------------------------------------------------- * * | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | * * ------------------------------------------------- * * | R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 | * * ------------------------------------------------- * * ------------------------------------------------- * * | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | * * ------------------------------------------------- * * | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | * * ------------------------------------------------- * * | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 | * * ------------------------------------------------- * * ------------------------------------------------- * * | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | * * ------------------------------------------------- * * | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 | * * ------------------------------------------------- * * | R31 |hiddn| CR | LR | PC |bchai|linkr| FCTX| * * ------------------------------------------------- * * ------------------------------------------------- * * | 64 | | * * ------------------------------------------------- * * | 256 | | * * ------------------------------------------------- * * | DATA| | * * ------------------------------------------------- * * * *******************************************************/ .file "ontop_ppc32_sysv_elf_gas.S" .text .globl ostd_ontop_fcontext .align 2 .type ostd_ontop_fcontext,@function ostd_ontop_fcontext: # reserve space on stack subi %r1, %r1, 244 stfd %f14, 0(%r1) # save F14 stfd %f15, 8(%r1) # save F15 stfd %f16, 16(%r1) # save F16 stfd %f17, 24(%r1) # save F17 stfd %f18, 32(%r1) # save F18 stfd %f19, 40(%r1) # save F19 stfd %f20, 48(%r1) # save F20 stfd %f21, 56(%r1) # save F21 stfd %f22, 64(%r1) # save F22 stfd %f23, 72(%r1) # save F23 stfd %f24, 80(%r1) # save F24 stfd %f25, 88(%r1) # save F25 stfd %f26, 96(%r1) # save F26 stfd %f27, 104(%r1) # save F27 stfd %f28, 112(%r1) # save F28 stfd %f29, 120(%r1) # save F29 stfd %f30, 128(%r1) # save F30 stfd %f31, 136(%r1) # save F31 mffs %f0 # load FPSCR stfd %f0, 144(%r1) # save FPSCR stw %r13, 152(%r1) # save R13 stw %r14, 156(%r1) # save R14 stw %r15, 160(%r1) # save R15 stw %r16, 164(%r1) # save R16 stw %r17, 168(%r1) # save R17 stw %r18, 172(%r1) # save R18 stw %r19, 176(%r1) # save R19 stw %r20, 180(%r1) # save R20 stw %r21, 184(%r1) # save R21 stw %r22, 188(%r1) # save R22 stw %r23, 192(%r1) # save R23 stw %r24, 196(%r1) # save R24 stw %r25, 200(%r1) # save R25 stw %r26, 204(%r1) # save R26 stw %r27, 208(%r1) # save R27 stw %r28, 212(%r1) # save R28 stw %r29, 216(%r1) # save R29 stw %r30, 220(%r1) # save R30 stw %r31, 224(%r1) # save R31 stw %r3, 228(%r1) # save hidden # save CR mfcr %r0 stw %r0, 232(%r1) # save LR mflr %r0 stw %r0, 236(%r1) # save LR as PC stw %r0, 240(%r1) # store RSP (pointing to context-data) in R7 mr %r7, %r1 # restore RSP (pointing to context-data) from R4 mr %r1, %r4 lfd %f14, 0(%r1) # restore F14 lfd %f15, 8(%r1) # restore F15 lfd %f16, 16(%r1) # restore F16 lfd %f17, 24(%r1) # restore F17 lfd %f18, 32(%r1) # restore F18 lfd %f19, 40(%r1) # restore F19 lfd %f20, 48(%r1) # restore F20 lfd %f21, 56(%r1) # restore F21 lfd %f22, 64(%r1) # restore F22 lfd %f23, 72(%r1) # restore F23 lfd %f24, 80(%r1) # restore F24 lfd %f25, 88(%r1) # restore F25 lfd %f26, 96(%r1) # restore F26 lfd %f27, 104(%r1) # restore F27 lfd %f28, 112(%r1) # restore F28 lfd %f29, 120(%r1) # restore F29 lfd %f30, 128(%r1) # restore F30 lfd %f31, 136(%r1) # restore F31 lfd %f0, 144(%r1) # load FPSCR mtfsf 0xff, %f0 # restore FPSCR lwz %r13, 152(%r1) # restore R13 lwz %r14, 156(%r1) # restore R14 lwz %r15, 160(%r1) # restore R15 lwz %r16, 164(%r1) # restore R16 lwz %r17, 168(%r1) # restore R17 lwz %r18, 172(%r1) # restore R18 lwz %r19, 176(%r1) # restore R19 lwz %r20, 180(%r1) # restore R20 lwz %r21, 184(%r1) # restore R21 lwz %r22, 188(%r1) # restore R22 lwz %r23, 192(%r1) # restore R23 lwz %r24, 196(%r1) # restore R24 lwz %r25, 200(%r1) # restore R25 lwz %r26, 204(%r1) # restore R26 lwz %r27, 208(%r1) # restore R27 lwz %r28, 212(%r1) # restore R28 lwz %r29, 216(%r1) # restore R29 lwz %r30, 220(%r1) # restore R30 lwz %r31, 224(%r1) # restore R31 lwz %r4, 228(%r1) # restore hidden # restore CR lwz %r0, 232(%r1) mtcr %r0 # restore LR lwz %r0, 236(%r1) mtlr %r0 # ignore PC # adjust stack addi %r1, %r1, 244 # return transfer_t stw %r7, 0(%r4) stw %r5, 4(%r4) # restore CTR mtctr %r6 # jump to ontop-function bctr .size ostd_ontop_fcontext, .-ostd_ontop_fcontext /* Mark that we don't need executable stack. */ .section .note.GNU-stack,"",%progbits