/*
* $Id$
*/
#include "asm.h"
BEGIN_CODE
.globl _romStart
.globl start
.globl _start
.globl _romFaultStart
.globl _led_array
.text
start: /* JRS */
_start: /* JRS */
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
/* just to compile and link application XXX JOEL */
.globl _faultStart
.globl _faultEnd
.globl _faultCheckSum
.globl _faultBuffer
.globl _svrStackPtr
.globl _console_pmr_getc
.globl _console_pmr_kbhit
.globl _console_pmr_init
.globl _console_pmr_putc
.globl _DBGConsole_make_sync
.globl _codeRamStart
.globl _codeRomStart
.globl _codeRamEnd
.globl _codeRomEnd
.globl _bssStart
.globl _bssEnd
.globl _bssStart_1
.globl _bssEnd_1
.globl _intStackPtr
_faultStart:
_faultEnd:
_faultCheckSum:
_faultBuffer:
_svrStackPtr:
_console_pmr_getc:
_console_pmr_kbhit:
_console_pmr_init:
_console_pmr_putc:
_DBGConsole_make_sync:
_codeRamStart:
_codeRomStart:
_codeRamEnd:
_codeRomEnd:
_bssStart:
_bssEnd:
_bssStart_1:
_bssEnd_1:
_intStackPtr:
