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parrado |
#include "spr_defs.h"
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// Linked from 0x200, so subtract 0x200 from each .org
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.section .vectors, "ax"
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/*
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.org 0x100
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_reset:
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l.nop
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l.j _reset_except
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l.nop
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*/
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.org 0x000
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_except_200:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _buserr_except
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l.nop
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.org 0x100
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_except_300:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _dpf_except
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l.nop
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.org 0x200
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_except_400:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _ipf_except
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l.nop
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.org 0x300
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_except_500:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _lpint_except
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l.nop
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.org 0x400
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_except_600:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _align_except
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l.nop
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.org 0x500
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_except_700:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _illegal_except
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l.nop
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.org 0x600
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_except_800:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _hpint_except //jmp to C interrupt handler (returns later to end_except)
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l.nop
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.org 0x700
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_except_900:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _dtlbmiss_except
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l.nop
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.org 0x800
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_except_a00:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _itlbmiss_except
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l.nop
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.org 0x900
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_except_b00:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _range_except
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l.nop
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.org 0xa00
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_except_c00:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _syscall_except
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l.nop
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.org 0xb00
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_except_d00:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _res1_except
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l.nop
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.org 0xc00
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_except_e00:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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| 192 |
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _trap_except
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l.nop
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| 197 |
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.org 0xd00
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_except_f00:
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l.nop
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l.addi r1,r1,-116 //free 29 words of stack (stack is r1)
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l.sw 0x18(r1),r9 //save register r9(return addr) to stack
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l.jal store_regs //save registers r3-r31 (except r9) to stack (r9 is changed here)
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l.nop
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l.movhi r9,hi(end_except) //set return addr to end_except instruction
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l.ori r9,r9,lo(end_except) //set return addr to end_except instruction
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l.j _res2_except
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l.nop
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store_regs: //save registers r3-r31 (except r9) to stack
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l.sw 0x00(r1),r3
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l.sw 0x04(r1),r4
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l.sw 0x08(r1),r5
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l.sw 0x0c(r1),r6
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l.sw 0x10(r1),r7
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l.sw 0x14(r1),r8
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l.sw 0x1c(r1),r10
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l.sw 0x20(r1),r11
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l.sw 0x24(r1),r12
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l.sw 0x28(r1),r13
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l.sw 0x2c(r1),r14
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l.sw 0x30(r1),r15
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l.sw 0x34(r1),r16
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l.sw 0x38(r1),r17
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l.sw 0x3c(r1),r18
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l.sw 0x40(r1),r19
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l.sw 0x44(r1),r20
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l.sw 0x48(r1),r21
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l.sw 0x4c(r1),r22
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l.sw 0x50(r1),r23
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l.sw 0x54(r1),r24
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l.sw 0x58(r1),r25
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l.sw 0x5c(r1),r26
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l.sw 0x60(r1),r27
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l.sw 0x64(r1),r28
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| 237 |
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l.sw 0x68(r1),r29
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| 238 |
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l.sw 0x6c(r1),r30
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| 239 |
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l.sw 0x70(r1),r31
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| 240 |
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l.jr r9
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l.nop
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end_except: //load back registers from stack r3-r31
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l.lwz r3,0x00(r1)
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l.lwz r4,0x04(r1)
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| 246 |
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l.lwz r5,0x08(r1)
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| 247 |
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l.lwz r6,0x0c(r1)
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| 248 |
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l.lwz r7,0x10(r1)
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| 249 |
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l.lwz r8,0x14(r1)
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| 250 |
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l.lwz r9,0x18(r1)
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| 251 |
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l.lwz r10,0x1c(r1)
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| 252 |
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l.lwz r11,0x20(r1)
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| 253 |
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l.lwz r12,0x24(r1)
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| 254 |
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l.lwz r13,0x28(r1)
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| 255 |
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l.lwz r14,0x2c(r1)
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| 256 |
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l.lwz r15,0x30(r1)
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| 257 |
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l.lwz r16,0x34(r1)
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| 258 |
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l.lwz r17,0x38(r1)
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| 259 |
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l.lwz r18,0x3c(r1)
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| 260 |
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l.lwz r19,0x40(r1)
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| 261 |
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l.lwz r20,0x44(r1)
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| 262 |
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l.lwz r21,0x48(r1)
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| 263 |
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l.lwz r22,0x4c(r1)
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| 264 |
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l.lwz r23,0x50(r1)
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| 265 |
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l.lwz r24,0x54(r1)
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| 266 |
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l.lwz r25,0x58(r1)
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| 267 |
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l.lwz r26,0x5c(r1)
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| 268 |
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l.lwz r27,0x60(r1)
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| 269 |
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l.lwz r28,0x64(r1)
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| 270 |
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l.lwz r29,0x68(r1)
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| 271 |
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l.lwz r30,0x6c(r1)
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| 272 |
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l.lwz r31,0x70(r1)
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| 273 |
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l.addi r1,r1,116 //free stack places
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| 274 |
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l.rfe //recover SR register and prior PC (jumps back to program)
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| 275 |
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l.nop
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| 276 |
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