/* 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| | * * ------------------------------------------------- * * * *******************************************************/ .text .globl _ostd_jump_fcontext .align 2 _ostd_jump_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 R6 mr r6, 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 r3, 228(r1) # restore hidden # restore CR lwz r0, 232(r1) mtcr r0 # restore LR lwz r0, 236(r1) mtlr r0 # load PC lwz r0, 240(r1) # restore CTR mtctr r0 # adjust stack addi r1, r1, 244 # return transfer_t stw r6, 0(r3) stw r5, 4(r3) # jump to context bctr