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/*
* $Id$
*/
#include "asm.h"
BEGIN_CODE
.globl _romStart
.globl _start
.globl _romFaultStart
.globl _led_array
.text
SYM(romStart ):
SYM(_romStart ):
# This line is to make compiler happy.
mov 0, g14
ldconst 0x120f,r10 # BIST register
/*
Setup code for in memory loaded image
*/
/*
# Interrupt stack is used by default.
# Copy all code (except Fault Table and Fault Handler)
# from EPROM into DRAM.
*/
ldconst 0x120f,r10 //# BIST register
ldconst 0x2,r3
stob r3,0(r10) //# 2->LED
/*
# Zero all uninitialized data
*/
callx _zeroBss
ldconst 0x120f,r10 //# BIST register
ldconst 0x3,r3
stob r3,0(r10) //# 3->LED
/*
# And reinitialize processor.
# _start is a few lines below.
# _prcb is RAM-based struct PRCB.
*/
ldconst 0x300, r4
ldconst _pmc_start, r5
ldconst _ram_prcb, r6
sysctl r4, r5, r6
/*
# This point will never be reached.
*/
SYM(_pmc_start) :
SYM(pmc_start) :
ldconst 0x120f,r10 # BIST register
ldconst 0x4,r3
stob r3,0(r10) //# 4->LED
mov 0, g14
/*
# To get ready to invoke procedures.
# I'll use supervisor stack.
*/
ldconst _svrStackPtr, fp
lda 16*4(fp), sp
ldconst 0x5,r3
stob r3,0(r10) //# 5->LED
ldconst 0x1F0000, r4
ldconst 0x1F2000, r3
ldconst 0, r5
modpc r4, r3, r5
ldconst 7,r3
stob r3,0(r10) //# 7->LED
callx _rx_boot_card
/* # if _romMain ever returns ... */
b _romExit
SYM(romFaultStart) :
SYM(_romFaultStart) :
mov 0, g14
/* ldconst 0, sf0 XXX JRS */
/*
# To get ready to invoke procedures.
# I'll use supervisor stack.
# _svrStackPtr is defined directly in rom.ld.
*/
ldconst _svrStackPtr, fp
lda 16*4(fp), sp
/*
# Set processor priority to zero.
*/
ldconst 0x1F0000, r4
ldconst 0, r5
modpc r4, r4, r5
// # Now to real code
// Fix this up callx _romFaultMain
callx _rx_boot_card
// # if _romMain ever returns ...
b _romExit
_romExit :
// # if _romMain ever returns ...
// fmark
b _romExit
SYM(led_array):
.byte 99
.byte 1
.byte 2
.byte 3
.byte 4
.byte 5
.byte 6
.byte 7
.byte 8
.byte 9
.byte 0xa
.byte 0xb
.byte 0xc
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