diff options
Diffstat (limited to 'hifi/xaf/hifi-dpf/ipc/xt-shmem/hikey/int_vector.S')
-rw-r--r-- | hifi/xaf/hifi-dpf/ipc/xt-shmem/hikey/int_vector.S | 830 |
1 files changed, 0 insertions, 830 deletions
diff --git a/hifi/xaf/hifi-dpf/ipc/xt-shmem/hikey/int_vector.S b/hifi/xaf/hifi-dpf/ipc/xt-shmem/hikey/int_vector.S deleted file mode 100644 index d579a55e..00000000 --- a/hifi/xaf/hifi-dpf/ipc/xt-shmem/hikey/int_vector.S +++ /dev/null @@ -1,830 +0,0 @@ -/******************************************************************************* -* Copyright (C) 2018 Cadence Design Systems, Inc. -* -* Permission is hereby granted, free of charge, to any person obtaining -* a copy of this software and associated documentation files (the -* "Software"), to use this Software with Cadence processor cores only and -* not with any other processors and platforms, subject to -* the following conditions: -* -* The above copyright notice and this permission notice shall be included -* in all copies or substantial portions of the Software. -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY -* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, -* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE -* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -******************************************************************************/ -/****************************************************************************** - int_vector.S -******************************************************************************/ -#include <xtensa/coreasm.h> -#include <xtensa/corebits.h> -#include <xtensa/config/system.h> -#include <xtensa/simcall.h> -#include "arch_hifi330.h" - -// .data - .section .dram0.data, "aw" -/* CP */ - .type g_awVosCoprocSaOffset,@object - .align 16 /* minimize crossing cache boundaries */ -g_awVosCoprocSaOffset: - .word XT_CP0_SA, XT_CP1_SA, XT_CP2_SA, XT_CP3_SA - .word XT_CP4_SA, XT_CP5_SA, XT_CP6_SA, XT_CP7_SA - -/* CP n's CPENABLE bit. */ - .type g_bVosCoprocMask,@object - .align 16,,8 /* try to keep it all in one cache line */ -g_bVosCoprocMask: - .byte 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 - -/* Owner of CP (0 = unowned). */ - .global g_awVosCoprocOwnerSa - .type g_awVosCoprocOwnerSa,@object - .align 16,,XCHAL_CP_MAX<<2 /* minimize crossing cache boundaries */ -g_awVosCoprocOwnerSa: - .space XCHAL_CP_MAX << 2,0 - - .global g_strVosPanicMessage - .align 4 -g_strVosPanicMessage: - .string "\npanic at addr 0x%08x.\n" - - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .global OS_Panic - .type OS_Panic,@function - .align 4 -/***************************************************************************** - OS_Panic -*****************************************************************************/ -OS_Panic: - -#ifdef ZOS_SIM - /*panic at addr*/ - addi a4, a0, -3 /* point to call0 */ - movi a3, g_strVosPanicMessage - movi a2, SYS_log_msg - simcall - movi a2, SYS_gdb_abort - simcall -#else - /*low & med*/ - rsil a2, XCHAL_EXCM_LEVEL /* disable all low & med ints */ -1: j 1b /* loop infinitely */ -#endif - - .end literal_prefix - - .begin literal_prefix .DebugExceptionVector - .section .DebugExceptionVector.text, "ax" - .global OS_DebugExceptionVector - .align 4 -/***************************************************************************** -_DebugExceptionVector -*****************************************************************************/ -OS_DebugExceptionVector: -#ifdef ZOS_SIM - wsr a2, EXCSAVE+XCHAL_DEBUGLEVEL - movi a2, SYS_gdb_enter_sktloop - simcall -#else - wsr a0, EXCSAVE+XCHAL_DEBUGLEVEL - call0 OS_Panic - rfi XCHAL_DEBUGLEVEL -#endif - - .end literal_prefix - - - .begin literal_prefix .DoubleExceptionVector - .section .DoubleExceptionVector.text, "ax" - .global OS_DoubleExceptionVector - .align 4 -/***************************************************************************** - OS_DoubleExceptionVector -*****************************************************************************/ -OS_DoubleExceptionVector: - call0 OS_Panic /* does not return */ - rfde /* make a0 point here not later */ - - .end literal_prefix - - - .begin literal_prefix .KernelExceptionVector - .section .KernelExceptionVector.text, "ax" - .global OS_KernelExceptionVector - .align 4 -/***************************************************************************** - _KernelExceptionVector -*****************************************************************************/ -OS_KernelExceptionVector: - call0 OS_Panic /* does not return */ - rfe /* make a0 point here not later */ - - .end literal_prefix - - - .begin literal_prefix .UserExceptionVector - .section .UserExceptionVector.text, "ax" - .global OS_UserExceptionVector - .type OS_UserExceptionVector,@function - .align 4 -/***************************************************************************** - _UserExceptionVector -*****************************************************************************/ -OS_UserExceptionVector: - wsr a0, EXCSAVE_1 /* preserve a0 */ - call0 OS_UserExc /* user exception handler */ - /* never returns here - call0 is used as a jump (see note at top) */ - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - - .align 4 -OS_CoProcessorExc: - s32i a5, sp, XT_STK_A5 /* save a5 */ - addi a5, a0, -EXCCAUSE_CP0_DISABLED /* a0 = CP index */ - bgei a5, XCHAL_CP_MAX, .L_xt_user_exc_not_coproc - call0 OS_CoProcessorException /* in window vectors section */ - /* never returns here - call0 is used as a jump (see note at top) */ - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .align 4 -OS_AllocExc: - call0 OS_AllocaException /* in window vectors section */ - /* never returns here - call0 is used as a jump (see note at top) */ - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .align 4 -OS_SyscallExc: - call0 OS_SyscallException - /* never returns here - call0 is used as a jump (see note at top) */ - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .global OS_UserExc - .type OS_UserExc,@function - .align 4 -OS_UserExc: - rsr a0, EXCCAUSE - beqi a0, EXCCAUSE_ALLOCA, OS_AllocExc - beqi a0, EXCCAUSE_SYSCALL, OS_SyscallExc - - mov a0, sp /* sp == a1 */ - addi sp, sp, -XT_STK_FRMSZ /* allocate interrupt stack frame */ - s32i a0, sp, XT_STK_A1 /* save pre-interrupt SP */ - rsr a0, PS /* save interruptee's PS */ - s32i a0, sp, XT_STK_PS - rsr a0, EPC_1 /* save interruptee's PC */ - s32i a0, sp, XT_STK_PC - rsr a0, EXCSAVE_1 /* save interruptee's a0 */ - s32i a0, sp, XT_STK_A0 - movi a0, OS_UserExit /* save exit point for dispatch */ - s32i a0, sp, XT_STK_EXIT - - rsr a0, EXCCAUSE - bgeui a0, EXCCAUSE_CP0_DISABLED, OS_CoProcessorExc - -.L_xt_user_exc_not_coproc: - - - call0 XT_RTOS_INT_ENTER - - - movi a0, PS_INTLEVEL(XCHAL_EXCM_LEVEL) | PS_UM | PS_WOE - wsr a0, PS - rsync - - rsr a2, EXCCAUSE - beqi a2, EXCCAUSE_LEVEL1INTERRUPT, .L_xt_user_int - mov a6,a2 - mov a7,a1 - /*User exception*/ - call4 OS_UserexecHandler - j .L_xt_user_done - -.L_xt_user_int: - /* level 1 int */ - rsr a2, INTENABLE - rsr a3, INTERRUPT - movi a4, XCHAL_INTLEVEL1_MASK - and a2, a2, a3 - and a2, a2, a4 - beqz a2, .L_int_done1 - - neg a3,a2 - and a3,a3,a2 - wsr a3,INTCLEAR - - find_ls_one a2, a3 - mov a6,a2 - call4 OS_EnterIntHook - - mov a6,a2 - call4 OS_InterruptHandler - - mov a6,a2 - call4 OS_ExitIntHook - j .L_xt_user_int - -.L_int_done1: - - -.L_xt_user_done: - call0 XT_RTOS_INT_EXIT - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .global OS_UserExit - .type OS_UserExit,@function - .align 4 -OS_UserExit: - l32i a0, sp, XT_STK_PS /* retrieve interruptee's PS */ - wsr a0, PS - l32i a0, sp, XT_STK_PC /* retrieve interruptee's PC */ - wsr a0, EPC_1 - l32i a0, sp, XT_STK_A0 /* retrieve interruptee's A0 */ - l32i sp, sp, XT_STK_A1 /* remove interrupt stack frame */ - rsync /* ensure PS and EPC written */ - rfe /* PS.EXCM is cleared */ - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .type OS_SyscallException,@function - .align 4 -/***************************************************************************** - OS_SyscallException -*****************************************************************************/ -OS_SyscallException: - addi sp, sp, -XT_STK_FRMSZ /* allocate interrupt stack frame */ - s32i a12, sp, XT_STK_A12 /* _xt_context_save requires A12- */ - s32i a13, sp, XT_STK_A13 /* A13 to have already been saved */ - call0 OS_ContextSave - - - /* - 2)update PC*/ - rsr a2, EPC_1 - addi a3, a2, 3 - - rsr a0, LEND - bne a3, a0, 1f - rsr a0, LCOUNT - beqz a0, 1f - addi a0, a0, -1 - rsr a3, LBEG - wsr a0, LCOUNT - -1: wsr a3, EPC_1 - - /* Restore context,exception */ - call0 OS_ContextRestore - addi sp, sp, XT_STK_FRMSZ - - movi a0, -1 - movnez a2, a0, a2 /* return -1 if not syscall 0 */ - rsr a0, EXCSAVE_1 - rfe - - - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .type OS_CoProcessorException,@function - .align 4 -/***************************************************************************** - OS_CoProcessorException -*****************************************************************************/ -OS_CoProcessorException: /* a5 = CP index */ - - s32i a2, sp, XT_STK_A2 - s32i a3, sp, XT_STK_A3 - s32i a4, sp, XT_STK_A4 - s32i a15, sp, XT_STK_A15 - - - /* co-processor old owner new owner. */ - call0 XT_RTOS_CP_STATE /* a15 = new owner's save area */ - beqz a15, .L_xt_coproc_invalid /* not in a thread (invalid) */ - - mov a0, a5 /* a0 = CP index */ - movi a3, g_awVosCoprocOwnerSa - addx4 a3, a0, a3 /* a3 = &g_awVosCoprocOwnerSa[CP] */ - l32i a2, a3, 0 /* a2 = old owner's save area */ - - /* Enable the co-processor's bit in CPENABLE. */ - movi a4, g_bVosCoprocMask - rsr a5, CPENABLE /* a5 = CPENABLE */ - add a4, a4, a0 - l8ui a4, a4, 0 /* a4 = bitmask from CP index */ - or a5, a5, a4 /* a5 = CPENABLE + CP */ - wsr a5, CPENABLE - - - beq a15, a2, .L_xt_coproc_done /* new owner == old, we're done */ - - s32i a15, a3, 0 /* g_awVosCoprocOwnerSa[CP] = new */ - - l8ui a5, a15, XT_CPSTORED /* a5 = new owner's old CPSTORED */ - neg a3, a4 - addi a3, a3, -1 /* a3 = ~a4 (bitmask for CP) */ - and a3, a5, a3 /* clr CP in new owner's CPSTORED */ - s8i a3, a15, XT_CPSTORED /* update new owner's CPSTORED */ - - /* Adjust new owner's save area pointers to area for CP n. */ - movi a3, g_awVosCoprocSaOffset - and a5, a5, a4 /* a5 = new owner's CP is stored */ - addx4 a3, a0, a3 /* a3 = &OS_CoprocSaOffset[CP] */ - l32i a3, a3, 0 /* a3 = XT_CP[CP]_SA */ - add a15, a15, a3 /* a15 = new owner's area for CP */ - moveqz a15, a5, a5 /* a15 = 0 if state not stored */ - - rsync /* ensure wsr.CPENABLE is complete */ - beqz a2, .L_xt_coproc_new /* no old owner to save */ - - /* If old owner still needs CP, clear CP in CPENABLE and set in CPSTORED. */ - l8ui a5, a2, XT_CPENABLE /* a5 = old owner's CPENABLE */ - and a4, a5, a4 /* a4 = CP in old owner CPENABLE */ - beqz a4, .L_xt_coproc_new /* discard old owner's CP state */ - - sub a5, a5, a4 /* clr CP in old owner's CPENABLE */ - s8i a5, a2, XT_CPENABLE /* update old owner's CPENABLE */ - l8ui a5, a2, XT_CPSTORED /* a5 = old owner's CPSTORED */ - or a5, a5, a4 /* set CP in old owner's CPSTORED */ - s8i a5, a2, XT_CPSTORED /* update old owner's CPSTORED */ - - /* Save co-processor state of old owner. */ -.Ln_xt_coproc_old: - add a2, a2, a3 /* a2 = old owner's area for CP */ - mov a3, a0 /* a3 = CP index */ - /* - The config-specific HAL macro invoked below destroys a2-5, preserves a0-1. - It is theoretically possible for Xtensa processor designers to write TIE - that causes more address registers to be affected, but it is generally - unlikely. If that ever happens, more registers needs to be saved/restored - around this macro invocation, and the value in a15 needs to be recomputed. - */ - xchal_cpi_store_funcbody - - /* Restore co-processor state of new owner. */ -.L_xt_coproc_new: - beqz a15, .L_xt_coproc_done /* no valid state to restore */ - mov a2, a15 /* a2 = new owner's area for CP */ - mov a3, a0 /* a3 = CP index */ - - xchal_cpi_load_funcbody - - -.L_xt_coproc_done: - l32i a15, sp, XT_STK_A15 - l32i a5, sp, XT_STK_A5 - l32i a4, sp, XT_STK_A4 - l32i a3, sp, XT_STK_A3 - l32i a2, sp, XT_STK_A2 - call0 OS_UserExit - -.L_xt_coproc_invalid: - call0 OS_Panic /* not in a thread (invalid) */ - .end literal_prefix - - .begin literal_prefix .Level2InterruptVector - .section .Level2InterruptVector.text, "ax" - .global OS_Level2Vector - .type OS_Level2Vector,@function - .align 4 -/***************************************************************************** - _Level2Vector -*****************************************************************************/ -OS_Level2Vector: - wsr a0, EXCSAVE_2 /* preserve a0 */ - call0 OS_Medint2 /* load interrupt handler */ - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .extern OS_InterruptHandler - .type OS_Medint2,@function - .align 4 -OS_Medint2: - -#movi a1, 0xdeadbeef - movi a1, 0xe8075000 - movi a2, 0xe8075e30 /*HIFI_RESERVE1_LOCATION*/ - s32i a1, a2, 0 - - mov a0, sp /* sp == a1 */ - addi sp, sp, -XT_STK_FRMSZ /* allocate interrupt stack frame */ - s32i a0, sp, XT_STK_A1 /* save pre-interrupt SP */ - rsr a0, EPS_2 /* save interruptee's PS */ - s32i a0, sp, XT_STK_PS - rsr a0, EPC_2 /* save interruptee's PC */ - s32i a0, sp, XT_STK_PC - rsr a0, EXCSAVE_2 /* save interruptee's a0 */ - s32i a0, sp, XT_STK_A0 - movi a0, OS_Medint2Exit /* save exit point for dispatch */ - s32i a0, sp, XT_STK_EXIT - - call0 XT_RTOS_INT_ENTER - - movi a0, PS_INTLEVEL(2) | PS_UM | PS_WOE - wsr a0, PS - rsync - - -.L_ProcAllInt2: - rsr a2, INTENABLE - rsr a3, INTERRUPT - movi a4, XCHAL_INTLEVEL2_MASK - and a2, a2, a3 - and a2, a2, a4 - beqz a2, .L_int_done2 - - neg a3,a2 - and a3,a3,a2 - wsr a3,INTCLEAR - - find_ls_one a2, a3 - mov a6,a2 - call4 OS_EnterIntHook - - mov a6,a2 - call4 OS_InterruptHandler - - mov a6,a2 - call4 OS_ExitIntHook - j .L_ProcAllInt2 - -.L_int_done2: - call0 XT_RTOS_INT_EXIT - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .global OS_Medint2Exit - .type OS_Medint2Exit,@function - .align 4 -OS_Medint2Exit: - /* Restore only level-specific regs (the rest were already restored) */ - l32i a0, sp, XT_STK_PS /* retrieve interruptee's PS */ - wsr a0, EPS_2 - l32i a0, sp, XT_STK_PC /* retrieve interruptee's PC */ - wsr a0, EPC_2 - l32i a0, sp, XT_STK_A0 /* retrieve interruptee's A0 */ - l32i sp, sp, XT_STK_A1 /* remove interrupt stack frame */ - rsync /* ensure EPS and EPC written */ - rfi 2 - .end literal_prefix - - - .begin literal_prefix .Level3InterruptVector - .section .Level3InterruptVector.text, "ax" - .global OS_Level3Vector - .type OS_Level3Vector,@function - .align 4 -/***************************************************************************** - _Level3Vector -*****************************************************************************/ -OS_Level3Vector: - wsr a0, EXCSAVE_3 /* preserve a0 */ - call0 OS_MedInt3 /* load interrupt handler */ - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .extern OS_InterruptHandler - .type OS_MedInt3,@function - .align 4 -OS_MedInt3: - - mov a0, sp /* sp == a1 */ - addi sp, sp, -XT_STK_FRMSZ /* allocate interrupt stack frame */ - s32i a0, sp, XT_STK_A1 /* save pre-interrupt SP */ - rsr a0, EPS_3 /* save interruptee's PS */ - s32i a0, sp, XT_STK_PS - rsr a0, EPC_3 /* save interruptee's PC */ - s32i a0, sp, XT_STK_PC - rsr a0, EXCSAVE_3 /* save interruptee's a0 */ - s32i a0, sp, XT_STK_A0 - movi a0, OS_Medint3Exit /* save exit point for dispatch */ - s32i a0, sp, XT_STK_EXIT - - call0 XT_RTOS_INT_ENTER - - movi a0, PS_INTLEVEL(3) | PS_UM | PS_WOE - wsr a0, PS - rsync - - -.L_ProcAllInt3: - rsr a2, INTENABLE - rsr a3, INTERRUPT - movi a4, XCHAL_INTLEVEL3_MASK - and a2, a2, a3 - and a2, a2, a4 - beqz a2, .L_int_done3 - - neg a3,a2 - and a3,a3,a2 - wsr a3,INTCLEAR - - find_ls_one a2, a3 - mov a6,a2 - call4 OS_EnterIntHook - - mov a6,a2 - call4 OS_InterruptHandler - - mov a6,a2 - call4 OS_ExitIntHook - j .L_ProcAllInt3 - -.L_int_done3: - - call0 XT_RTOS_INT_EXIT - - .end literal_prefix - - .begin literal_prefix .iram0 - .section .iram0.text, "ax" - .global OS_Medint3Exit - .type OS_Medint3Exit,@function - .align 4 -OS_Medint3Exit: - /* Restore only level-specific regs (the rest were already restored) */ - l32i a0, sp, XT_STK_PS /* retrieve interruptee's PS */ - wsr a0, EPS_3 - l32i a0, sp, XT_STK_PC /* retrieve interruptee's PC */ - wsr a0, EPC_3 - l32i a0, sp, XT_STK_A0 /* retrieve interruptee's A0 */ - l32i sp, sp, XT_STK_A1 /* remove interrupt stack frame */ - rsync /* ensure EPS and EPC written */ - rfi 3 - .end literal_prefix - - - .begin literal_prefix .NMIExceptionVector - .section .NMIExceptionVector.text, "ax" - .global OS_NMIExceptionVector - .align 8 -/***************************************************************************** - OS_NMIExceptionVector -*****************************************************************************/ -OS_NMIExceptionVector: - /*wsr a3, 213 - wsr a4, 214*/ - - /*movi a3, 0x0 - movi a4, 0xf711a510 - s32i a3, a4, 0*/ - - /*rsr a3, 213 - rsr a4, 214*/ - - movi a0, PS_INTLEVEL(3) | PS_UM | PS_WOE - wsr a0, PS - rsync - rsr a2, EXCCAUSE - mov a6,a2 - mov a7,a1 - call4 OS_NmiHook - - rfi XCHAL_NMILEVEL - - .end literal_prefix - - .section .WindowVectors.text, "ax" - -/* --------------------------------------------------------------------------------- -Window Overflow Exception for Call4. - -Invoked if a call[i] referenced a register (a4-a15) -that contains data from ancestor call[j]; -call[j] had done a call4 to call[j+1]. -On entry here: - window rotated to call[j] start point; - a0-a3 are registers to be saved; - a4-a15 must be preserved; - a5 is call[j+1]'s stack pointer. --------------------------------------------------------------------------------- -*/ - - .org 0x0 - .global _WindowOverflow4 -_WindowOverflow4: - - s32e a0, a5, -16 /* save a0 to call[j+1]'s stack frame */ - s32e a1, a5, -12 /* save a1 to call[j+1]'s stack frame */ - s32e a2, a5, -8 /* save a2 to call[j+1]'s stack frame */ - s32e a3, a5, -4 /* save a3 to call[j+1]'s stack frame */ - rfwo /* rotates back to call[i] position */ - -/* --------------------------------------------------------------------------------- -Window Underflow Exception for Call4 - -Invoked by RETW returning from call[i+1] to call[i] -where call[i]'s registers must be reloaded (not live in ARs); -where call[i] had done a call4 to call[i+1]. -On entry here: - window rotated to call[i] start point; - a0-a3 are undefined, must be reloaded with call[i].reg[0..3]; - a4-a15 must be preserved (they are call[i+1].reg[0..11]); - a5 is call[i+1]'s stack pointer. --------------------------------------------------------------------------------- -*/ - - .org 0x40 - .global _WindowUnderflow4 -_WindowUnderflow4: - - l32e a0, a5, -16 /* restore a0 from call[i+1]'s stack frame */ - l32e a1, a5, -12 /* restore a1 from call[i+1]'s stack frame */ - l32e a2, a5, -8 /* restore a2 from call[i+1]'s stack frame */ - l32e a3, a5, -4 /* restore a3 from call[i+1]'s stack frame */ - rfwu - - .global OS_AllocaException - .align 4 -/***************************************************************************** - OS_AllocaException -*****************************************************************************/ -OS_AllocaException: - - rsr a0, WINDOWBASE /* grab WINDOWBASE before rotw changes it */ - rotw -1 /* WINDOWBASE goes to a4, new a0-a3 are scratch */ - rsr a2, PS - extui a3, a2, XCHAL_PS_OWB_SHIFT, XCHAL_PS_OWB_BITS - xor a3, a3, a4 /* bits changed from old to current windowbase */ - rsr a4, EXCSAVE_1 /* restore original a0 (now in a4) */ - slli a3, a3, XCHAL_PS_OWB_SHIFT - xor a2, a2, a3 /* flip changed bits in old window base */ - wsr a2, PS /* update PS.OWB to new window base */ - rsync - - _bbci.l a4, 31, _WindowUnderflow4 - rotw -1 /* original a0 goes to a8 */ - _bbci.l a8, 30, _WindowUnderflow8 - rotw -1 - j _WindowUnderflow12 - - - -/* --------------------------------------------------------------------------------- -Window Overflow Exception for Call8 - -Invoked if a call[i] referenced a register (a4-a15) -that contains data from ancestor call[j]; -call[j] had done a call8 to call[j+1]. -On entry here: - window rotated to call[j] start point; - a0-a7 are registers to be saved; - a8-a15 must be preserved; - a9 is call[j+1]'s stack pointer. --------------------------------------------------------------------------------- -*/ - - .org 0x80 - .global _WindowOverflow8 -_WindowOverflow8: - - s32e a0, a9, -16 /* save a0 to call[j+1]'s stack frame */ - l32e a0, a1, -12 /* a0 <- call[j-1]'s sp - (used to find end of call[j]'s frame) */ - s32e a1, a9, -12 /* save a1 to call[j+1]'s stack frame */ - s32e a2, a9, -8 /* save a2 to call[j+1]'s stack frame */ - s32e a3, a9, -4 /* save a3 to call[j+1]'s stack frame */ - s32e a4, a0, -32 /* save a4 to call[j]'s stack frame */ - s32e a5, a0, -28 /* save a5 to call[j]'s stack frame */ - s32e a6, a0, -24 /* save a6 to call[j]'s stack frame */ - s32e a7, a0, -20 /* save a7 to call[j]'s stack frame */ - rfwo /* rotates back to call[i] position */ - -/* --------------------------------------------------------------------------------- -Window Underflow Exception for Call8 - -Invoked by RETW returning from call[i+1] to call[i] -where call[i]'s registers must be reloaded (not live in ARs); -where call[i] had done a call8 to call[i+1]. -On entry here: - window rotated to call[i] start point; - a0-a7 are undefined, must be reloaded with call[i].reg[0..7]; - a8-a15 must be preserved (they are call[i+1].reg[0..7]); - a9 is call[i+1]'s stack pointer. --------------------------------------------------------------------------------- -*/ - - .org 0xC0 - .global _WindowUnderflow8 -_WindowUnderflow8: - - l32e a0, a9, -16 /* restore a0 from call[i+1]'s stack frame */ - l32e a1, a9, -12 /* restore a1 from call[i+1]'s stack frame */ - l32e a2, a9, -8 /* restore a2 from call[i+1]'s stack frame */ - l32e a7, a1, -12 /* a7 <- call[i-1]'s sp - (used to find end of call[i]'s frame) */ - l32e a3, a9, -4 /* restore a3 from call[i+1]'s stack frame */ - l32e a4, a7, -32 /* restore a4 from call[i]'s stack frame */ - l32e a5, a7, -28 /* restore a5 from call[i]'s stack frame */ - l32e a6, a7, -24 /* restore a6 from call[i]'s stack frame */ - l32e a7, a7, -20 /* restore a7 from call[i]'s stack frame */ - rfwu - -/* --------------------------------------------------------------------------------- -Window Overflow Exception for Call12 - -Invoked if a call[i] referenced a register (a4-a15) -that contains data from ancestor call[j]; -call[j] had done a call12 to call[j+1]. -On entry here: - window rotated to call[j] start point; - a0-a11 are registers to be saved; - a12-a15 must be preserved; - a13 is call[j+1]'s stack pointer. --------------------------------------------------------------------------------- -*/ - - .org 0x100 - .global _WindowOverflow12 -_WindowOverflow12: - - s32e a0, a13, -16 /* save a0 to call[j+1]'s stack frame */ - l32e a0, a1, -12 /* a0 <- call[j-1]'s sp - (used to find end of call[j]'s frame) */ - s32e a1, a13, -12 /* save a1 to call[j+1]'s stack frame */ - s32e a2, a13, -8 /* save a2 to call[j+1]'s stack frame */ - s32e a3, a13, -4 /* save a3 to call[j+1]'s stack frame */ - s32e a4, a0, -48 /* save a4 to end of call[j]'s stack frame */ - s32e a5, a0, -44 /* save a5 to end of call[j]'s stack frame */ - s32e a6, a0, -40 /* save a6 to end of call[j]'s stack frame */ - s32e a7, a0, -36 /* save a7 to end of call[j]'s stack frame */ - s32e a8, a0, -32 /* save a8 to end of call[j]'s stack frame */ - s32e a9, a0, -28 /* save a9 to end of call[j]'s stack frame */ - s32e a10, a0, -24 /* save a10 to end of call[j]'s stack frame */ - s32e a11, a0, -20 /* save a11 to end of call[j]'s stack frame */ - rfwo /* rotates back to call[i] position */ - -/* --------------------------------------------------------------------------------- -Window Underflow Exception for Call12 - -Invoked by RETW returning from call[i+1] to call[i] -where call[i]'s registers must be reloaded (not live in ARs); -where call[i] had done a call12 to call[i+1]. -On entry here: - window rotated to call[i] start point; - a0-a11 are undefined, must be reloaded with call[i].reg[0..11]; - a12-a15 must be preserved (they are call[i+1].reg[0..3]); - a13 is call[i+1]'s stack pointer. --------------------------------------------------------------------------------- -*/ - - .org 0x140 - .global _WindowUnderflow12 -_WindowUnderflow12: - - l32e a0, a13, -16 /* restore a0 from call[i+1]'s stack frame */ - l32e a1, a13, -12 /* restore a1 from call[i+1]'s stack frame */ - l32e a2, a13, -8 /* restore a2 from call[i+1]'s stack frame */ - l32e a11, a1, -12 /* a11 <- call[i-1]'s sp - (used to find end of call[i]'s frame) */ - l32e a3, a13, -4 /* restore a3 from call[i+1]'s stack frame */ - l32e a4, a11, -48 /* restore a4 from end of call[i]'s stack frame */ - l32e a5, a11, -44 /* restore a5 from end of call[i]'s stack frame */ - l32e a6, a11, -40 /* restore a6 from end of call[i]'s stack frame */ - l32e a7, a11, -36 /* restore a7 from end of call[i]'s stack frame */ - l32e a8, a11, -32 /* restore a8 from end of call[i]'s stack frame */ - l32e a9, a11, -28 /* restore a9 from end of call[i]'s stack frame */ - l32e a10, a11, -24 /* restore a10 from end of call[i]'s stack frame */ - l32e a11, a11, -20 /* restore a11 from end of call[i]'s stack frame */ - rfwu - - - |