mirror of https://github.com/PrimeDecomp/prime.git
Match and link OSContext, add ability to turn off frank
Former-commit-id: e924a90c59
This commit is contained in:
parent
71957e2a96
commit
922a4428f9
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@ -154,7 +154,7 @@ __OSSaveFPUContext:
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/* 8037F380 0037C2E0 C8 05 00 90 */ lfd f0, 0x90(r5)
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/* 8037F384 0037C2E4 7C 78 E2 A6 */ mfspr r3, 0x398
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/* 8037F388 0037C2E8 54 63 1F FF */ rlwinm. r3, r3, 3, 0x1f, 0x1f
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/* 8037F38C 0037C2EC 41 82 00 84 */ beq sub_8037f410
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/* 8037F38C 0037C2EC 41 82 00 84 */ beq lbl_8037f410
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/* 8037F390 0037C2F0 F0 05 01 C8 */ psq_st f0, 456(r5), 0, qr0
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/* 8037F394 0037C2F4 F0 25 01 D0 */ psq_st f1, 464(r5), 0, qr0
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/* 8037F398 0037C2F8 F0 45 01 D8 */ psq_st f2, 472(r5), 0, qr0
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@ -187,9 +187,7 @@ __OSSaveFPUContext:
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/* 8037F404 0037C364 F3 A5 02 B0 */ psq_st f29, 688(r5), 0, qr0
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/* 8037F408 0037C368 F3 C5 02 B8 */ psq_st f30, 696(r5), 0, qr0
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/* 8037F40C 0037C36C F3 E5 02 C0 */ psq_st f31, 704(r5), 0, qr0
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.global sub_8037f410
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sub_8037f410:
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lbl_8037f410:
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/* 8037F410 0037C370 4E 80 00 20 */ blr
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.global OSSaveFPUContext
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@ -267,9 +265,9 @@ OSSaveContext:
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.global OSLoadContext
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OSLoadContext:
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/* 8037F504 0037C464 3C 80 80 38 */ lis r4, OSDisableInterrupts@ha
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/* 8037F504 0037C464 3C 80 80 38 */ lis r4, __RAS_OSDisableInterrupts_begin@ha
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/* 8037F508 0037C468 80 C3 01 98 */ lwz r6, 0x198(r3)
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/* 8037F50C 0037C46C 38 A4 16 60 */ addi r5, r4, OSDisableInterrupts@l
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/* 8037F50C 0037C46C 38 A4 16 60 */ addi r5, r4, __RAS_OSDisableInterrupts_begin@l
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/* 8037F510 0037C470 7C 06 28 40 */ cmplw r6, r5
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/* 8037F514 0037C474 40 81 00 18 */ ble lbl_8037F52C
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/* 8037F518 0037C478 3C 80 80 38 */ lis r4, __RAS_OSDisableInterrupts_end@ha
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@ -809,7 +809,7 @@ LIBS = [
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["Dolphin/os/OSArena", True],
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["Dolphin/os/OSAudioSystem", True],
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["Dolphin/os/OSCache", True],
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"Dolphin/os/OSContext",
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["Dolphin/os/OSContext", True, True, True],
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"Dolphin/os/OSError",
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"Dolphin/os/OSFatal",
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"Dolphin/os/OSFont",
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@ -1339,9 +1339,12 @@ if __name__ == "__main__":
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for object in lib["objects"]:
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completed = None
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add_to_all = True
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no_frank = False
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if type(object) is list:
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if len(object) > 2:
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add_to_all = object[2]
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if len(object) > 3:
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no_frank = object[3]
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completed = object[1]
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object = object[0]
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@ -1357,6 +1360,7 @@ if __name__ == "__main__":
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rule = "mwcc"
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if mwcc_version == "1.2.5e":
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mwcc_version = "1.2.5"
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if no_frank is False:
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rule = "mwcc_frank"
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n.build(
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outputs=f"$builddir/src/{object}.o",
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@ -132,6 +132,8 @@ extern "C" {
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#define OS_CONTEXT_PSF31 704
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#define OS_CONTEXT_STATE_EXC 0x02u
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#define OS_CONTEXT_STATE_FPSAVED 0x01u
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typedef struct OSContext {
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u32 gpr[32];
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u32 cr;
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@ -8,6 +8,8 @@
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define __OS_EXCEPTION_FLOATING_POINT 7
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typedef u8 __OSException;
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typedef void (*__OSExceptionHandler)(__OSException exception, OSContext* context);
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@ -0,0 +1,550 @@
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#include <dolphin/os.h>
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#include <dolphin/db.h>
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#define HID2 920
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volatile OSContext* __OSCurrentContext : (OS_BASE_CACHED | 0x00D4);
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volatile OSContext* __OSFPUContext : (OS_BASE_CACHED | 0x00D8);
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static asm void __OSLoadFPUContext(register u32, register OSContext* fpuContext) {
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// clang-format off
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nofralloc
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lhz r5, fpuContext->state;
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clrlwi. r5, r5, 31
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beq _return
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lfd fp0, OS_CONTEXT_FPSCR(fpuContext)
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mtfsf 0xFF, fp0
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mfspr r5, HID2
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rlwinm. r5, r5, 3, 31, 31
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beq _regular_FPRs
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psq_l fp0, OS_CONTEXT_PSF0(fpuContext), 0, 0
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psq_l fp1, OS_CONTEXT_PSF1(fpuContext), 0, 0
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psq_l fp2, OS_CONTEXT_PSF2(fpuContext), 0, 0
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psq_l fp3, OS_CONTEXT_PSF3(fpuContext), 0, 0
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psq_l fp4, OS_CONTEXT_PSF4(fpuContext), 0, 0
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psq_l fp5, OS_CONTEXT_PSF5(fpuContext), 0, 0
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psq_l fp6, OS_CONTEXT_PSF6(fpuContext), 0, 0
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psq_l fp7, OS_CONTEXT_PSF7(fpuContext), 0, 0
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psq_l fp8, OS_CONTEXT_PSF8(fpuContext), 0, 0
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psq_l fp9, OS_CONTEXT_PSF9(fpuContext), 0, 0
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psq_l fp10, OS_CONTEXT_PSF10(fpuContext), 0, 0
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psq_l fp11, OS_CONTEXT_PSF11(fpuContext), 0, 0
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psq_l fp12, OS_CONTEXT_PSF12(fpuContext), 0, 0
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psq_l fp13, OS_CONTEXT_PSF13(fpuContext), 0, 0
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psq_l fp14, OS_CONTEXT_PSF14(fpuContext), 0, 0
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psq_l fp15, OS_CONTEXT_PSF15(fpuContext), 0, 0
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psq_l fp16, OS_CONTEXT_PSF16(fpuContext), 0, 0
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psq_l fp17, OS_CONTEXT_PSF17(fpuContext), 0, 0
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psq_l fp18, OS_CONTEXT_PSF18(fpuContext), 0, 0
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psq_l fp19, OS_CONTEXT_PSF19(fpuContext), 0, 0
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psq_l fp20, OS_CONTEXT_PSF20(fpuContext), 0, 0
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psq_l fp21, OS_CONTEXT_PSF21(fpuContext), 0, 0
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psq_l fp22, OS_CONTEXT_PSF22(fpuContext), 0, 0
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psq_l fp23, OS_CONTEXT_PSF23(fpuContext), 0, 0
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psq_l fp24, OS_CONTEXT_PSF24(fpuContext), 0, 0
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psq_l fp25, OS_CONTEXT_PSF25(fpuContext), 0, 0
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psq_l fp26, OS_CONTEXT_PSF26(fpuContext), 0, 0
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psq_l fp27, OS_CONTEXT_PSF27(fpuContext), 0, 0
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psq_l fp28, OS_CONTEXT_PSF28(fpuContext), 0, 0
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psq_l fp29, OS_CONTEXT_PSF29(fpuContext), 0, 0
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psq_l fp30, OS_CONTEXT_PSF30(fpuContext), 0, 0
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psq_l fp31, OS_CONTEXT_PSF31(fpuContext), 0, 0
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_regular_FPRs:
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lfd fp0, fpuContext->fpr[0]
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lfd fp1, fpuContext->fpr[1]
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lfd fp2, fpuContext->fpr[2]
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lfd fp3, fpuContext->fpr[3]
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lfd fp4, fpuContext->fpr[4]
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lfd fp5, fpuContext->fpr[5]
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lfd fp6, fpuContext->fpr[6]
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lfd fp7, fpuContext->fpr[7]
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lfd fp8, fpuContext->fpr[8]
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lfd fp9, fpuContext->fpr[9]
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lfd fp10, fpuContext->fpr[10]
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lfd fp11, fpuContext->fpr[11]
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lfd fp12, fpuContext->fpr[12]
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lfd fp13, fpuContext->fpr[13]
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lfd fp14, fpuContext->fpr[14]
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lfd fp15, fpuContext->fpr[15]
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lfd fp16, fpuContext->fpr[16]
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lfd fp17, fpuContext->fpr[17]
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lfd fp18, fpuContext->fpr[18]
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lfd fp19, fpuContext->fpr[19]
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lfd fp20, fpuContext->fpr[20]
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lfd fp21, fpuContext->fpr[21]
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lfd fp22, fpuContext->fpr[22]
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lfd fp23, fpuContext->fpr[23]
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lfd fp24, fpuContext->fpr[24]
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lfd fp25, fpuContext->fpr[25]
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lfd fp26, fpuContext->fpr[26]
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lfd fp27, fpuContext->fpr[27]
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lfd fp28, fpuContext->fpr[28]
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lfd fp29, fpuContext->fpr[29]
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lfd fp30, fpuContext->fpr[30]
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lfd fp31, fpuContext->fpr[31]
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_return:
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blr
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// clang-format on
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}
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static asm void __OSSaveFPUContext(register u32, register u32, register OSContext* fpuContext) {
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// clang-format off
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nofralloc
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lhz r3, fpuContext->state
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ori r3, r3, 1
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sth r3, fpuContext->state
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stfd fp0, fpuContext->fpr[0]
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stfd fp1, fpuContext->fpr[1]
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stfd fp2, fpuContext->fpr[2]
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stfd fp3, fpuContext->fpr[3]
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stfd fp4, fpuContext->fpr[4]
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stfd fp5, fpuContext->fpr[5]
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stfd fp6, fpuContext->fpr[6]
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stfd fp7, fpuContext->fpr[7]
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stfd fp8, fpuContext->fpr[8]
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stfd fp9, fpuContext->fpr[9]
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stfd fp10, fpuContext->fpr[10]
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stfd fp11, fpuContext->fpr[11]
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stfd fp12, fpuContext->fpr[12]
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stfd fp13, fpuContext->fpr[13]
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stfd fp14, fpuContext->fpr[14]
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stfd fp15, fpuContext->fpr[15]
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stfd fp16, fpuContext->fpr[16]
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stfd fp17, fpuContext->fpr[17]
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stfd fp18, fpuContext->fpr[18]
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stfd fp19, fpuContext->fpr[19]
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stfd fp20, fpuContext->fpr[20]
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stfd fp21, fpuContext->fpr[21]
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stfd fp22, fpuContext->fpr[22]
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stfd fp23, fpuContext->fpr[23]
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stfd fp24, fpuContext->fpr[24]
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stfd fp25, fpuContext->fpr[25]
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stfd fp26, fpuContext->fpr[26]
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stfd fp27, fpuContext->fpr[27]
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stfd fp28, fpuContext->fpr[28]
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stfd fp29, fpuContext->fpr[29]
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stfd fp30, fpuContext->fpr[30]
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stfd fp31, fpuContext->fpr[31]
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mffs fp0
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stfd fp0, OS_CONTEXT_FPSCR(fpuContext)
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lfd fp0, fpuContext->fpr[0]
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mfspr r3, HID2
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rlwinm. r3, r3, 3, 31, 31
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bc 12, 2, _return
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psq_st fp0, OS_CONTEXT_PSF0(fpuContext), 0, 0
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psq_st fp1, OS_CONTEXT_PSF1(fpuContext), 0, 0
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psq_st fp2, OS_CONTEXT_PSF2(fpuContext), 0, 0
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psq_st fp3, OS_CONTEXT_PSF3(fpuContext), 0, 0
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psq_st fp4, OS_CONTEXT_PSF4(fpuContext), 0, 0
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psq_st fp5, OS_CONTEXT_PSF5(fpuContext), 0, 0
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psq_st fp6, OS_CONTEXT_PSF6(fpuContext), 0, 0
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psq_st fp7, OS_CONTEXT_PSF7(fpuContext), 0, 0
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psq_st fp8, OS_CONTEXT_PSF8(fpuContext), 0, 0
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psq_st fp9, OS_CONTEXT_PSF9(fpuContext), 0, 0
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psq_st fp10, OS_CONTEXT_PSF10(fpuContext), 0, 0
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psq_st fp11, OS_CONTEXT_PSF11(fpuContext), 0, 0
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psq_st fp12, OS_CONTEXT_PSF12(fpuContext), 0, 0
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psq_st fp13, OS_CONTEXT_PSF13(fpuContext), 0, 0
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psq_st fp14, OS_CONTEXT_PSF14(fpuContext), 0, 0
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psq_st fp15, OS_CONTEXT_PSF15(fpuContext), 0, 0
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psq_st fp16, OS_CONTEXT_PSF16(fpuContext), 0, 0
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psq_st fp17, OS_CONTEXT_PSF17(fpuContext), 0, 0
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psq_st fp18, OS_CONTEXT_PSF18(fpuContext), 0, 0
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psq_st fp19, OS_CONTEXT_PSF19(fpuContext), 0, 0
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psq_st fp20, OS_CONTEXT_PSF20(fpuContext), 0, 0
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psq_st fp21, OS_CONTEXT_PSF21(fpuContext), 0, 0
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psq_st fp22, OS_CONTEXT_PSF22(fpuContext), 0, 0
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psq_st fp23, OS_CONTEXT_PSF23(fpuContext), 0, 0
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psq_st fp24, OS_CONTEXT_PSF24(fpuContext), 0, 0
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psq_st fp25, OS_CONTEXT_PSF25(fpuContext), 0, 0
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psq_st fp26, OS_CONTEXT_PSF26(fpuContext), 0, 0
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psq_st fp27, OS_CONTEXT_PSF27(fpuContext), 0, 0
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psq_st fp28, OS_CONTEXT_PSF28(fpuContext), 0, 0
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psq_st fp29, OS_CONTEXT_PSF29(fpuContext), 0, 0
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psq_st fp30, OS_CONTEXT_PSF30(fpuContext), 0, 0
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psq_st fp31, OS_CONTEXT_PSF31(fpuContext), 0, 0
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_return:
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blr
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// clang-format on
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}
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asm void OSLoadFPUContext(register OSContext* fpuContext) {
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// clang-format off
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nofralloc
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addi r4, fpuContext, 0
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b __OSLoadFPUContext
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// clang-format on
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}
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asm void OSSaveFPUContext(register OSContext* fpuContext) {
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// clang-format off
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nofralloc
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addi r5, fpuContext, 0
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b __OSSaveFPUContext
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// clang-format on
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}
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asm void OSSetCurrentContext(register OSContext* context){
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// clang-format off
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nofralloc
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addis r4, r0, OS_CACHED_REGION_PREFIX
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stw context, 0x00D4(r4)
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clrlwi r5, context, 2
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stw r5, 0x00C0(r4)
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lwz r5, 0x00D8(r4)
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cmpw r5, context
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bne _disableFPU
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lwz r6, context->srr1
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ori r6, r6, 0x2000
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stw r6, context->srr1
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mfmsr r6
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ori r6, r6, 2
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mtmsr r6
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blr
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_disableFPU:
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lwz r6, context->srr1
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rlwinm r6, r6, 0, 19, 17
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stw r6, context->srr1
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mfmsr r6
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rlwinm r6, r6, 0, 19, 17
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ori r6, r6, 2
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mtmsr r6
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isync
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blr
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// clang-format on
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}
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OSContext* OSGetCurrentContext(void) {
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return (OSContext*)__OSCurrentContext;
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}
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asm u32 OSSaveContext(register OSContext* context) {
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// clang-format off
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nofralloc
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stmw r13, context->gpr[13]
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mfspr r0, GQR1
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stw r0, context->gqr[1]
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mfspr r0, GQR2
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stw r0, context->gqr[2]
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mfspr r0, GQR3
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stw r0, context->gqr[3]
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mfspr r0, GQR4
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stw r0, context->gqr[4]
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mfspr r0, GQR5
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stw r0, context->gqr[5]
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mfspr r0, GQR6
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stw r0, context->gqr[6]
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mfspr r0, GQR7
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stw r0, context->gqr[7]
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mfcr r0
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stw r0, context->cr
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mflr r0
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stw r0, context->lr
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stw r0, context->srr0
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mfmsr r0
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stw r0, context->srr1
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mfctr r0
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stw r0, context->ctr
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mfxer r0
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stw r0, context->xer
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stw r1, context->gpr[1]
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stw r2, context->gpr[2]
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li r0, 0x1
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stw r0, context->gpr[3]
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li r3, 0
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blr
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// clang-format on
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}
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extern void __RAS_OSDisableInterrupts_begin();
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extern void __RAS_OSDisableInterrupts_end();
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asm void OSLoadContext(register OSContext* context) {
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// clang-format off
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nofralloc
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lis r4,__RAS_OSDisableInterrupts_begin@ha
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lwz r6,context->srr0
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addi r5,r4,__RAS_OSDisableInterrupts_begin@l
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cmplw r6,r5
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ble _notInRAS
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lis r4,__RAS_OSDisableInterrupts_end@ha
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addi r0,r4,__RAS_OSDisableInterrupts_end@l
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cmplw r6,r0
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bge _notInRAS
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stw r5,context->srr0
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_notInRAS:
|
||||
|
||||
lwz r0, context->gpr[0]
|
||||
lwz r1, context->gpr[1]
|
||||
lwz r2, context->gpr[2]
|
||||
|
||||
lhz r4, context->state
|
||||
rlwinm. r5, r4, 0, 30, 30
|
||||
beq notexc
|
||||
rlwinm r4, r4, 0, 31, 29
|
||||
sth r4, context->state
|
||||
lmw r5, context->gpr[5]
|
||||
b misc
|
||||
notexc:
|
||||
lmw r13, context->gpr[13]
|
||||
misc:
|
||||
|
||||
lwz r4, context->gqr[1]
|
||||
mtspr GQR1, r4
|
||||
lwz r4, context->gqr[2]
|
||||
mtspr GQR2, r4
|
||||
lwz r4, context->gqr[3]
|
||||
mtspr GQR3, r4
|
||||
lwz r4, context->gqr[4]
|
||||
mtspr GQR4, r4
|
||||
lwz r4, context->gqr[5]
|
||||
mtspr GQR5, r4
|
||||
lwz r4, context->gqr[6]
|
||||
mtspr GQR6, r4
|
||||
lwz r4, context->gqr[7]
|
||||
mtspr GQR7, r4
|
||||
|
||||
lwz r4, context->cr
|
||||
mtcr r4
|
||||
lwz r4, context->lr
|
||||
mtlr r4
|
||||
lwz r4, context->ctr
|
||||
mtctr r4
|
||||
lwz r4, context->xer
|
||||
mtxer r4
|
||||
|
||||
mfmsr r4
|
||||
rlwinm r4, r4, 0, 17, 15
|
||||
rlwinm r4, r4, 0, 31, 29
|
||||
mtmsr r4
|
||||
|
||||
lwz r4, context->srr0
|
||||
mtsrr0 r4
|
||||
lwz r4, context->srr1
|
||||
mtsrr1 r4
|
||||
|
||||
lwz r4, context->gpr[4]
|
||||
lwz r3, context->gpr[3]
|
||||
|
||||
rfi
|
||||
// clang-format on
|
||||
}
|
||||
|
||||
asm u32 OSGetStackPointer() {
|
||||
// clang-format off
|
||||
nofralloc
|
||||
mr r3, r1
|
||||
blr
|
||||
// clang-format on
|
||||
}
|
||||
|
||||
asm u32 OSSwitchStack(register u32 newsp) {
|
||||
// clang-format off
|
||||
nofralloc
|
||||
mr r5, r1
|
||||
mr r1, newsp
|
||||
mr r3, r5
|
||||
blr
|
||||
// clang-format on
|
||||
}
|
||||
|
||||
asm int OSSwitchFiber(register u32 pc, register u32 newsp) {
|
||||
// clang-format off
|
||||
nofralloc
|
||||
mflr r0
|
||||
mr r5, r1
|
||||
stwu r5, -8(newsp)
|
||||
mr r1, newsp
|
||||
stw r0, 4(r5)
|
||||
mtlr pc
|
||||
blrl
|
||||
lwz r5, 0(r1)
|
||||
lwz r0, 4(r5)
|
||||
mtlr r0
|
||||
mr r1, r5
|
||||
blr
|
||||
// clang-format on
|
||||
}
|
||||
|
||||
void OSClearContext(register OSContext* context) {
|
||||
context->mode = 0;
|
||||
context->state = 0;
|
||||
if (context == __OSFPUContext)
|
||||
__OSFPUContext = NULL;
|
||||
}
|
||||
|
||||
asm void OSInitContext(register OSContext* context, register u32 pc, register u32 newsp) {
|
||||
// clang-format off
|
||||
nofralloc
|
||||
|
||||
stw pc, OS_CONTEXT_SRR0(context)
|
||||
stw newsp, OS_CONTEXT_R1(context)
|
||||
li r11, 0
|
||||
ori r11, r11, 0x00008000 | 0x00000020 | 0x00000010 | 0x00000002 | 0x00001000
|
||||
stw r11, OS_CONTEXT_SRR1(context)
|
||||
li r0, 0x0
|
||||
stw r0, OS_CONTEXT_CR(context)
|
||||
stw r0, OS_CONTEXT_XER(context)
|
||||
|
||||
|
||||
stw r2, OS_CONTEXT_R2(context)
|
||||
stw r13, OS_CONTEXT_R13(context)
|
||||
|
||||
stw r0, OS_CONTEXT_R3(context)
|
||||
stw r0, OS_CONTEXT_R4(context)
|
||||
stw r0, OS_CONTEXT_R5(context)
|
||||
stw r0, OS_CONTEXT_R6(context)
|
||||
stw r0, OS_CONTEXT_R7(context)
|
||||
stw r0, OS_CONTEXT_R8(context)
|
||||
stw r0, OS_CONTEXT_R9(context)
|
||||
stw r0, OS_CONTEXT_R10(context)
|
||||
stw r0, OS_CONTEXT_R11(context)
|
||||
stw r0, OS_CONTEXT_R12(context)
|
||||
|
||||
stw r0, OS_CONTEXT_R14(context)
|
||||
stw r0, OS_CONTEXT_R15(context)
|
||||
stw r0, OS_CONTEXT_R16(context)
|
||||
stw r0, OS_CONTEXT_R17(context)
|
||||
stw r0, OS_CONTEXT_R18(context)
|
||||
stw r0, OS_CONTEXT_R19(context)
|
||||
stw r0, OS_CONTEXT_R20(context)
|
||||
stw r0, OS_CONTEXT_R21(context)
|
||||
stw r0, OS_CONTEXT_R22(context)
|
||||
stw r0, OS_CONTEXT_R23(context)
|
||||
stw r0, OS_CONTEXT_R24(context)
|
||||
stw r0, OS_CONTEXT_R25(context)
|
||||
stw r0, OS_CONTEXT_R26(context)
|
||||
stw r0, OS_CONTEXT_R27(context)
|
||||
stw r0, OS_CONTEXT_R28(context)
|
||||
stw r0, OS_CONTEXT_R29(context)
|
||||
stw r0, OS_CONTEXT_R30(context)
|
||||
stw r0, OS_CONTEXT_R31(context)
|
||||
|
||||
stw r0, OS_CONTEXT_GQR0(context)
|
||||
stw r0, OS_CONTEXT_GQR1(context)
|
||||
stw r0, OS_CONTEXT_GQR2(context)
|
||||
stw r0, OS_CONTEXT_GQR3(context)
|
||||
stw r0, OS_CONTEXT_GQR4(context)
|
||||
stw r0, OS_CONTEXT_GQR5(context)
|
||||
stw r0, OS_CONTEXT_GQR6(context)
|
||||
stw r0, OS_CONTEXT_GQR7(context)
|
||||
|
||||
b OSClearContext
|
||||
// clang-format on
|
||||
}
|
||||
|
||||
void OSDumpContext(OSContext* context) {
|
||||
u32 i;
|
||||
u32* p;
|
||||
|
||||
OSReport("------------------------- Context 0x%08x -------------------------\n", context);
|
||||
|
||||
for (i = 0; i < 16; ++i) {
|
||||
OSReport("r%-2d = 0x%08x (%14d) r%-2d = 0x%08x (%14d)\n", i, context->gpr[i],
|
||||
context->gpr[i], i + 16, context->gpr[i + 16], context->gpr[i + 16]);
|
||||
}
|
||||
|
||||
OSReport("LR = 0x%08x CR = 0x%08x\n", context->lr, context->cr);
|
||||
OSReport("SRR0 = 0x%08x SRR1 = 0x%08x\n", context->srr0, context->srr1);
|
||||
|
||||
OSReport("\nGQRs----------\n");
|
||||
for (i = 0; i < 4; ++i) {
|
||||
OSReport("gqr%d = 0x%08x \t gqr%d = 0x%08x\n", i, context->gqr[i], i + 4, context->gqr[i + 4]);
|
||||
}
|
||||
|
||||
if (context->state & OS_CONTEXT_STATE_FPSAVED) {
|
||||
OSContext* currentContext;
|
||||
OSContext fpuContext;
|
||||
BOOL enabled;
|
||||
|
||||
enabled = OSDisableInterrupts();
|
||||
currentContext = OSGetCurrentContext();
|
||||
OSClearContext(&fpuContext);
|
||||
OSSetCurrentContext(&fpuContext);
|
||||
|
||||
OSReport("\n\nFPRs----------\n");
|
||||
for (i = 0; i < 32; i += 2) {
|
||||
OSReport("fr%d \t= %d \t fr%d \t= %d\n", i, (u32)context->fpr[i], i + 1,
|
||||
(u32)context->fpr[i + 1]);
|
||||
}
|
||||
OSReport("\n\nPSFs----------\n");
|
||||
for (i = 0; i < 32; i += 2) {
|
||||
OSReport("ps%d \t= 0x%x \t ps%d \t= 0x%x\n", i, (u32)context->psf[i], i + 1,
|
||||
(u32)context->psf[i + 1]);
|
||||
}
|
||||
|
||||
OSClearContext(&fpuContext);
|
||||
OSSetCurrentContext(currentContext);
|
||||
OSRestoreInterrupts(enabled);
|
||||
}
|
||||
|
||||
OSReport("\nAddress: Back Chain LR Save\n");
|
||||
for (i = 0, p = (u32*)context->gpr[1]; p && (u32)p != 0xffffffff && i++ < 16; p = (u32*)*p) {
|
||||
OSReport("0x%08x: 0x%08x 0x%08x\n", p, p[0], p[1]);
|
||||
}
|
||||
}
|
||||
|
||||
static asm void OSSwitchFPUContext(register __OSException exception, register OSContext* context) {
|
||||
// clang-format off
|
||||
nofralloc
|
||||
mfmsr r5
|
||||
ori r5, r5, 0x2000
|
||||
mtmsr r5
|
||||
isync
|
||||
lwz r5, OS_CONTEXT_SRR1(context)
|
||||
ori r5, r5, 0x2000
|
||||
mtsrr1 r5
|
||||
addis r3, r0, OS_CACHED_REGION_PREFIX
|
||||
lwz r5, 0x00D8(r3)
|
||||
stw context, 0x00D8(r3)
|
||||
cmpw r5, r4
|
||||
beq _restoreAndExit
|
||||
cmpwi r5, 0x0
|
||||
beq _loadNewFPUContext
|
||||
bl __OSSaveFPUContext
|
||||
_loadNewFPUContext:
|
||||
bl __OSLoadFPUContext
|
||||
_restoreAndExit:
|
||||
lwz r3, OS_CONTEXT_CR(context)
|
||||
mtcr r3
|
||||
lwz r3, OS_CONTEXT_LR(context)
|
||||
mtlr r3
|
||||
lwz r3, OS_CONTEXT_SRR0(context)
|
||||
mtsrr0 r3
|
||||
lwz r3, OS_CONTEXT_CTR(context)
|
||||
mtctr r3
|
||||
lwz r3, OS_CONTEXT_XER(context)
|
||||
mtxer r3
|
||||
lhz r3, context->state
|
||||
rlwinm r3, r3, 0, 31, 29
|
||||
sth r3, context->state
|
||||
lwz r5, OS_CONTEXT_R5(context)
|
||||
lwz r3, OS_CONTEXT_R3(context)
|
||||
lwz r4, OS_CONTEXT_R4(context)
|
||||
rfi
|
||||
// clang-format on
|
||||
}
|
||||
|
||||
void __OSContextInit(void) {
|
||||
__OSSetExceptionHandler(__OS_EXCEPTION_FLOATING_POINT, OSSwitchFPUContext);
|
||||
__OSFPUContext = NULL;
|
||||
DBPrintf("FPU-unavailable handler installed\n");
|
||||
}
|
||||
Loading…
Reference in New Issue