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Line 1... |
#include "spr-defs.h"
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#include "spr-defs.h"
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#include "board.h"
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#include "board.h"
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/* ======================================================= [ macros ] === */
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/* ======================================================= [ macros ] === */
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#define REDZONE 128
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#define EXCEPTION_STACK_SIZE (128 + REDZONE)
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#define CLEAR_GPR(gpr) \
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#define CLEAR_GPR(gpr) \
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l.or gpr, r0, r0
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l.or gpr, r0, r0
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#define ENTRY(symbol) \
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#define ENTRY(symbol) \
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Line 17... |
.global symbol ; \
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.global symbol ; \
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l.movhi gpr, hi(symbol) ; \
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l.movhi gpr, hi(symbol) ; \
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l.ori gpr, gpr, lo(symbol)
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l.ori gpr, gpr, lo(symbol)
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// Really goes to configurable interrupt handler
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// Really goes to configurable interrupt handler
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#define UNHANDLED_EXCEPTION \
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#define EXCEPTION_HANDLER \
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l.addi r1, r1, -256; \
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l.addi r1, r1, -EXCEPTION_STACK_SIZE; \
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l.sw 4(r1), r3; \
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l.sw 4(r1), r3; \
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l.sw 8(r1), r4; \
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l.sw 8(r1), r4; \
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l.mfspr r3,r0,SPR_NPC; \
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l.mfspr r3,r0,SPR_NPC; \
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l.mfspr r4,r0,SPR_EPCR_BASE; \
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l.mfspr r4,r0,SPR_EPCR_BASE; \
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l.j default_exception_handler; \
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l.j default_exception_handler; \
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l.nop
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l.nop
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/* =================================================== [ exceptions ] === */
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/* =================================================== [ exceptions ] === */
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.section .vectors, "ax"
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.section .vectors, "ax"
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/* ---[ 0x100: RESET exception ]----------------------------------------- */
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/* ---[ 0x100: RESET exception ]----------------------------------------- */
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Line 50... |
l.jr r4
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l.jr r4
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l.nop
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l.nop
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/* ---[ 0x200: BUS exception ]------------------------------------------- */
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/* ---[ 0x200: BUS exception ]------------------------------------------- */
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.org 0x200
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.org 0x200
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0x300: Data Page Fault exception ]------------------------------- */
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/* ---[ 0x300: Data Page Fault exception ]------------------------------- */
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.org 0x300
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.org 0x300
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0x400: Insn Page Fault exception ]------------------------------- */
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/* ---[ 0x400: Insn Page Fault exception ]------------------------------- */
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.org 0x400
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.org 0x400
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0x500: Timer exception ]----------------------------------------- */
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/* ---[ 0x500: Timer exception ]----------------------------------------- */
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.org 0x500
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.org 0x500
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#define TIMER_RELOAD_VALUE (SPR_TTMR_IE | SPR_TTMR_RT | ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD))
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#define TIMER_RELOAD_VALUE (SPR_TTMR_IE | SPR_TTMR_RT | ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD))
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//UNHANDLED_EXCEPTION
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//EXCEPTION_HANDLER
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/* Simply load timer_ticks variable and increment */
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/* Simply load timer_ticks variable and increment */
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.extern timer_ticks
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.extern timer_ticks
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l.addi r1, r1, -136
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l.addi r1, r1, -136
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l.sw 0(r1), r25
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l.sw 0(r1), r25
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l.sw 4(r1), r26
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l.sw 4(r1), r26
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Line 85... |
l.addi r1, r1, 136
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l.addi r1, r1, 136
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l.rfe
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l.rfe
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/* ---[ 0x600: Aligment exception ]-------------------------------------- */
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/* ---[ 0x600: Aligment exception ]-------------------------------------- */
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.org 0x600
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.org 0x600
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0x700: Illegal insn exception ]---------------------------------- */
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/* ---[ 0x700: Illegal insn exception ]---------------------------------- */
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.org 0x700
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.org 0x700
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0x800: External interrupt exception ]---------------------------- */
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/* ---[ 0x800: External interrupt exception ]---------------------------- */
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.org 0x800
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.org 0x800
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0x900: DTLB miss exception ]------------------------------------- */
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/* ---[ 0x900: DTLB miss exception ]------------------------------------- */
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.org 0x900
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.org 0x900
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0xa00: ITLB miss exception ]------------------------------------- */
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/* ---[ 0xa00: ITLB miss exception ]------------------------------------- */
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.org 0xa00
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.org 0xa00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0xb00: Range exception ]----------------------------------------- */
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/* ---[ 0xb00: Range exception ]----------------------------------------- */
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.org 0xb00
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.org 0xb00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0xc00: Syscall exception ]--------------------------------------- */
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/* ---[ 0xc00: Syscall exception ]--------------------------------------- */
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.org 0xc00
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.org 0xc00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0xd00: Trap exception ]------------------------------------------ */
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/* ---[ 0xd00: FPU exception ]------------------------------------------- */
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.org 0xd00
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.org 0xd00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0xe00: Trap exception ]------------------------------------------ */
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/* ---[ 0xe00: Trap exception ]------------------------------------------ */
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.org 0xe00
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.org 0xe00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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/* ---[ 0xf00: Reserved exceptions ]------------------------------------- */
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/* ---[ 0xf00 - 0x1400: Reserved exceptions ]---------------------------- */
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.org 0xf00
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UNHANDLED_EXCEPTION
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/*
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/*
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.org 0xf00
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EXCEPTION_HANDLER
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.org 0x1000
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.org 0x1000
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1100
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.org 0x1100
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1200
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.org 0x1200
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1300
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.org 0x1300
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1400
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.org 0x1400
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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*/
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/* ---[ 0x1500 - 0x1800: Implementation-specific exceptions ]------------ */
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/*
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.org 0x1500
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.org 0x1500
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1600
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.org 0x1600
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1700
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.org 0x1700
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1800
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.org 0x1800
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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*/
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/* ---[ 0x1500 - 0x1F00: Custom exceptions ]----------------------------- */
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/*
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.org 0x1900
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.org 0x1900
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1a00
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.org 0x1a00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1b00
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.org 0x1b00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1c00
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.org 0x1c00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1d00
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.org 0x1d00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1e00
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.org 0x1e00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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.org 0x1f00
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.org 0x1f00
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UNHANDLED_EXCEPTION
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EXCEPTION_HANDLER
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*/
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*/
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/* ========================================================= [ entry ] === */
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/* ========================================================= [ entry ] === */
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.section .text
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.section .text
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| Line 389... |
Line 388... |
l.lwz r29, 0x6c(r1)
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l.lwz r29, 0x6c(r1)
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l.lwz r30, 0x70(r1)
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l.lwz r30, 0x70(r1)
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l.lwz r31, 0x74(r1)
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l.lwz r31, 0x74(r1)
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l.lwz r32, 0x78(r1)
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l.lwz r32, 0x78(r1)
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l.addi r1, r1, 256
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l.addi r1, r1, EXCEPTION_STACK_SIZE
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l.rfe
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l.rfe
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l.nop
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l.nop
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