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test2

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pd
openpowerwtf 2 years ago
parent 63ebe271c8
commit b79536e583
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1
dev/src/test2/bin
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dev/src/test2/bios.c
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#include <stdint.h>

#include "bios.h"

int main(int tid) {
int *p;
int *fdata = _fdata;

if (tid != 0) {
return -1;
}

// r/w memory init

// copy
for (p = _fdata_rom; p < _edata_rom; p++){
*(fdata++) = *p;
}
// zero
for (p = _fbss; p < _ebss; p++) {
*_fbss = 0;
}

// core init
set_epcr(0x03000000); // icm=gicm=1
set_dec(0);
set_tbh(0);
set_tbl(0);
set_tsr(0xFE000000); // mask: clear enw,wis,wrs,dis,fis,udis
set_xucr0(get_xucr0() & 0x00000200); // set tcs=0
set_tsr(0);
set_tcr(0); // disable all timers

// thread enable
// set_tens(0x3);

return 0;
}

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dev/src/test2/bios.h
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#ifndef BIOS_H

#define BIOS_H

extern int *_fdata_rom;
extern int *_edata_rom;
extern int *_fdata;
extern int *_fbss;
extern int *_ebss;

inline void set_epcr(int v) __attribute__((always_inline));
inline void set_dec(int v) __attribute__((always_inline));
inline void set_tbh(int v) __attribute__((always_inline));
inline void set_tbl(int v) __attribute__((always_inline));
inline void set_tsr(int v) __attribute__((always_inline));
inline void set_tcr(int v) __attribute__((always_inline));
inline void set_tens(int v) __attribute__((always_inline));
inline void set_xucr0(int v) __attribute__((always_inline));
inline int get_xucr0(void) __attribute__((always_inline));

inline void set_epcr(int v) {
asm volatile(
"lis 4,%0@h\n"
"ori 4,4,%0@l\n"
"mtspr 307,4\n" // epcr
: // outputs
: "r"(v) // inputs
: "r4" // clobbers
);
}

inline void set_dec(int v) {
asm volatile(
"lis 4,%0@h\n"
"ori 4,4,%0@l\n"
"mtspr 22,4\n" // dec
: // outputs
: "r"(v) // inputs
: "r4" // clobbers
);
}

inline void set_tbh(int v) {
asm volatile(
"lis 4,%0@h\n"
"ori 4,4,%0@l\n"
"mtspr 285,4\n" // tbh
: // outputs
: "r"(v) // inputs
: "r4" // clobbers
);
}

inline void set_tbl(int v) {
asm volatile(
"lis 4,%0@h\n"
"ori 4,4,%0@l\n"
"mtspr 284,4\n" // tbl
: // outputs
: "r"(v) // inputs
: "r4" // clobbers
);
}

inline void set_tsr(int v) {
asm volatile(
"lis 4,%0@h\n"
"ori 4,4,%0@l\n"
"mtspr 336,4\n" // tsr
: // outputs
: "r"(v) // inputs
: "r4" // clobbers
);
}

inline void set_tcr(int v) {
asm volatile(
"lis 4,%0@h\n"
"ori 4,4,%0@l\n"
"mtspr 340,4\n" // tcr
: // outputs
: "r"(v) // inputs
: "r4" // clobbers
);
}

inline int get_xucr0(void) {
int v;
asm volatile(
"mfspr %0,1014\n" // xucr0
: "=r"(v) // outputs
: // inputs
: // clobbers
);
return v;
}

inline void set_xucr0(int v) {
asm volatile(
"lis 4,%0@h\n"
"ori 4,4,%0@l\n"
"mtspr 1014,4\n" // xucr0
: // outputs
: "r"(v) // inputs
: "r4" // clobbers
);
}

inline void set_tens(int v) {
asm volatile(
"lis 4,%0@h\n"
"ori 4,4,%0@l\n"
"mtspr 438,4\n" // tens
: // outputs
: "r"(v) // inputs
: "r4" // clobbers
);
}

#endif

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dev/src/test2/boot.s
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# © IBM Corp. 2022
# Licensed under and subject to the terms of the CC-BY 4.0
# license (https://creativecommons.org/licenses/by/4.0/legalcode).
# Additional rights, including the right to physically implement a softcore
# that is compliant with the required sections of the Power ISA
# Specification, will be available at no cost via the OpenPOWER Foundation.
# This README will be updated with additional information when OpenPOWER's
# license is available.

# boot kernel
# resets to 32BE
# set up translations for starting bios (inc. BE/LE)
# copy modifiable rom data to ram - or do in bios?
# set up msr for running bios (inc. 32/64)
# jump to bios


.include "defines.s"

.macro load32 rx,v
li \rx,0
oris \rx,\rx,\v>>16
ori \rx,\rx,\v&0x0000FFFF
.endm

.macro load16swiz rx,v
li \rx,0
ori \rx,\rx,(\v<<8)&0xFF00
ori \rx,\rx,(\v>>8)&0x00FF
.endm

# constants from linker script, or defsym

.ifdef BIOS_32
# sup MSR cm=1 ce=1 ee=1 pr=0 fp=1 me=1 fe=00 de=0 is=0 ds=0
.set BIOS_MSR,0x0002B000
.else
# sup MSR cm=1 ce=1 ee=1 pr=0 fp=1 me=1 fe=00 de=0 is=0 ds=0
.set BIOS_MSR,0x8002B000
.endif

# erat w2 (test) # word 2 wlc=40:41 rsvd=42 u=44:47 r=48 c=49 wimge=52:56 vf=57 ux/sx=58:59 uw/sw=60:61 ur/sr=62:63
.ifdef BIOS_LE
.set BIOS_ERATW2,0x000000BF
.else
.set BIOS_ERATW2,0x0000003F
.endif

# bios might be able to use one stack during thread startup if careful
.ifndef BIOS_STACK_0
.set BIOS_STACK_0,_stack_0
.endif

.ifndef BIOS_STACK_1
.set BIOS_STACK_1,_stack_1
.endif

.ifndef BIOS_START
.set BIOS_START,0x00010000
.endif

.section .text

.global _start

.org 0x000
_start:
int_000:
b boot_start

# critical input
.org 0x020
int_020:
.ifndef INT_UNHANDLED
b .
.else
b INT_UNHANDLED
.endif

# debug
.org 0x040
int_040:
b .

# dsi
.org 0x060
int_060:
b .

# isi
.org 0x080
int_080:
b .

# external
.org 0x0A0
int_0A0:
b .

# alignment
.org 0x0C0
int_0C0:
b .

# program
.org 0x0E0
int_0E0:
b .

# fp unavailable
.org 0x100
int_100:
b .

# sc
.org 0x120
int_120:
b .

# apu unavailable
.org 0x140
int_140:
b .

# decrementer
.org 0x160
int_160:
b .

# fit
.org 0x180
int_180:
b .

# watchdog
.org 0x1A0
int_1A0:
b .

# dtlb
.org 0x1C0
int_1C0:
b .

# itlb
.org 0x1E0
int_1E0:
b .

# vector unavailable
.org 0x200
int_200:
b .

#
.org 0x220
int_220:
b .

#
.org 0x240
int_240:
b .

#
.org 0x260
int_260:
b .

# doorbell
.org 0x280
int_280:
b .

# doorbell critical
.org 0x2A0
int_2A0:
b .

# doorbell guest
.org 0x2C0
int_2C0:
b .

# doorbell guest critical
.org 0x2E0
int_2E0:
b .

# hvsc
.org 0x300
int_300:
b .

# hvpriv
.org 0x320
int_320:
b .

# lrat
.org 0x340
int_340:
b .

# ------------------------------------------------------------------------------------------------------------------------------
# initial translation
# both erats:
# 00000000 64K: (rom, BE)
# 00010000 64K: (ram, BE or LE)
#
.org 0x400
boot_start:

mfspr r5,tir # who am i?
cmpdi r5,0x00 # skip unless T0
bne init_t123

lis r3,0x8C00 # 32=ecl 36:37=tlbsel (10=i, 11=d)

# derat 31 @00000000
li r0,0x001F # entry #31
li r2,0x0015 # word 2 wlc=40:41 rsvd=42 u=44:47 r=48 c=49 wimge=52:56 vf=57 ux/sx=58:59 uw/sw=60:61 ur/sr=62:63
li r4,0 # word 1 rpn(32:51)=32:51 rpn(22:31)=54:63
li r8,0x023F # word 0 epn=32:51 class=52:53 v=54 x=55 size=56:59 thrd=60:63 size: 0001=4K 0011=64K 0101=1M 0111=16M 1010=1G

mtspr mmucr0,r3
eratwe r2,r0,2
eratwe r4,r0,1
eratwe r8,r0,0
isync

load32 r10,BIOS_ERATW2 # word 2 wlc=40:41 rsvd=42 u=44:47 r=48 c=49 wimge=52:56 vf=57 ux/sx=58:59 uw/sw=60:61 ur/sr=62:63

# derat 30 @<BIOS_START>
li r0,0x001E # entry #30
load32 r4,BIOS_START # word 1 rpn(32:51)=32:51 rpn(22:31)=54:63
load32 r8,BIOS_START
ori r8,r8,0x023F # word 0 epn=32:51 class=52:53 v=54 x=55 size=56:59 thrd=60:63 size: 0001=4K 0011=64K 0101=1M 0111=16M 1010=1G

eratwe r10,r0,2
eratwe r4,r0,1
eratwe r8,r0,0
isync

lis r3,0x8800 # 32=ecl 36:37=tlbsel (10=i, 11=d)

# ierat 15 @00000000
li r0,0x000F # entry #15
li r2,0x003F # word 2 wlc=40:41 rsvd=42 u=44:47 r=48 c=49 wimge=52:56 vf=57 ux/sx=58:59 uw/sw=60:61 ur/sr=62:63
li r4,0 # word 1 rpn(32:51)=32:51 rpn(22:31)=54:63
li r8,0x023F # word 0 epn=32:51 class=52:53 v=54 x=55 size=56:59 thrd=60:63 size: 0001=4K 0011=64K 0101=1M 0111=16M 1010=1G

mtspr mmucr0,r3
eratwe r2,r0,2
eratwe r4,r0,1
eratwe r8,r0,0
isync

# *** leave the init'd entry 14 for MT access to FFFFFFC0
# ierat 13 @<BIOS_START>
li r0,0x000D # entry #13
load32 r4,BIOS_START # word 1 rpn(32:51)=32:51 rpn(22:31)=54:63
load32 r8,BIOS_START
ori r8,r8,0x023F # word 0 epn=32:51 class=52:53 v=54 x=55 size=56:59 thrd=60:63 size: 0001=4K 0011=64K 0101=1M 0111=16M 1010=1G

eratwe r10,r0,2
eratwe r4,r0,1
eratwe r8,r0,0
isync

b init_t0

# ------------------------------------------------------------------------------------------------------------------------------
# init
#

# T0

init_t0:

# set up BIOS msr

load32 r10,BIOS_MSR
mtmsr r10
isync
# can't use load32 unless you can .set BIOS_STACK_0 to the linked value
# load32 r1,BIOS_STACK_0 # @stack_0
# this ignores def
# lis r1,_stack_0@h
# ori r1,r1,_stack_0@l
# this requires data load
lwz r1,stack_0(r0)

b boot_complete

# except T0

init_t123:

# set up BIOS msr

load32 r10,BIOS_MSR
mtmsr r10
isync
# check tir if more than 2 threads possible
lwz r1,stack_1(r0)

b boot_complete

# ------------------------------------------------------------------------------------------------------------------------------
boot_complete:

# set up thread and hop to it

lis r3,main@h
ori r3,r3,main@l
mtctr r3
mfspr r3,tir # who am i?
bctrl
b kernel_return

# ------------------------------------------------------------------------------------------------------------------------------

.org 0x7FC
kernel_return:
b .

# dec
.org 0x800
int_800:
b .

# perf
.org 0x820
int_820:
b .

.org 0x8F0
.section .rodata
stack_0: .long BIOS_STACK_0
stack_1: .long BIOS_STACK_1

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#!/usr/bin/bash

export COMMONFLAGS="-ffreestanding -fomit-frame-pointer -Wall -fno-stack-protector"
export CFLAGS="$COMMONFLAGS -fexceptions -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes"

# defines

## define vars to init rom with csr's it uses...

#
#csr_base=`grep '#define CSR_BASE' generated/csr.h | cut -d ' ' -f 3 | cut -c 1-6`
#uart_base=`grep 'CSR_UART_BASE' generated/csr.h | cut -d ' ' -f 5 | cut -c 3-6`
#UART_ADDR="${csr_base}${uart_base}"
#defsyms="-defsym $UART_ADDR"
#
#uart_base=`grep 'CSR_UART_1_BASE' generated/csr.h | cut -d ' ' -f 5 | cut -c 3-6`
#if [[ "$uart_base" != "" ]] ; then
# UART_1_ADDR="${csr_base}${uart_base}"
# defsyms="$defsyms -defsym $UART_1_ADDR"
#fi
#
#uart_base=`grep 'CSR_UART_2_BASE' generated/csr.h | cut -d ' ' -f 5 | cut -c 3-6`
#if [[ "$uart_base" != "" ]] ; then
# UART_2_ADDR="${csr_base}${uart_base}"
# defsyms="$defsyms -defsym $UART_2_ADDR"
#fi
#
#leds_base=`grep 'CSR_LEDS_BASE' generated/csr.h | cut -d ' ' -f 5 | cut -c 3-6`
#if [[ "$leds_base" != "" ]] ; then
# LEDS_ADDR="${csr_base}${leds_base}"
# defsyms="$defsyms -defsym $LEDS_ADDR"
#fi
#
#echo "CSR Addresses"
#echo "Console UART: ${UART_ADDR}"
#echo " LEDS: ${LEDS_ADDR}"
#echo " UART_1: ${UART_1_ADDR}"
#echo " UART_2: ${UART_1_ADDR}"

# a2o nanokernel

echo -n "Compiling..."

echo -n "boot.s "
#powerpc-linux-gnu-as -defsym UART_ADDR=$UART_ADDR -defsym LEDS_ADDR=$LEDS_ADDR -defsym UNHANDLED=1 -mbig-endian -mpower9 -I./asm asm/cmod7-boot.s -ahlnd -o crt0.o > crt0.lst
powerpc-linux-gnu-as -mbig-endian -ma2 -I. boot.s -ahlnd -o crt0.o > crt0.lst
if [ $? -ne 0 ]; then
exit
fi

echo -n "bios.c "
powerpc-linux-gnu-gcc -c -I. $CFLAGS bios.c

echo ""
echo "Linking..."
powerpc-linux-gnu-ld -nostdlib -nodefaultlibs -T linker.ld crt0.o bios.o -o rom
if [ $? -ne 0 ]; then
exit
fi

powerpc-linux-gnu-objdump -d rom > rom.d #wtf: why not getting labels in asm code?
powerpc-linux-gnu-objdump -s rom > rom.s
#powerpc-linux-gnu-objcopy --change-section-lma .bios=0x10000 -O binary rom rom.bin
powerpc-linux-gnu-objcopy -O binary rom rom.bin

#python3 -m litex.soc.software.memusage rom ./generated/regions.ld powerpc-linux-gnu

# make rom.bin.hex
bin/bin2init rom.bin
mv rom.bin.hex rom.init

echo "Built rom.d, rom.s, rom.init."

romsize=`grep rom regions.ld | cut -d " " -f 8 | cut -c 3-10`

echo "Hardware ROM Size $romsize"
#echo ""
#echo "CSR Addresses"
#echo "Console UART: ${UART_ADDR}"
#echo " LEDS: ${LEDS_ADDR}"
#echo " UART_1: ${UART_1_ADDR}"
#echo " UART_2: ${UART_2_ADDR}"
#

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#!/usr/bin/bash

export COMMONFLAGS="-ffreestanding -fomit-frame-pointer -Wall -fno-stack-protector"
export CFLAGS="$COMMONFLAGS -fexceptions -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes"

# defines

## define vars to init rom with csr's it uses...

#
#csr_base=`grep '#define CSR_BASE' generated/csr.h | cut -d ' ' -f 3 | cut -c 1-6`
#uart_base=`grep 'CSR_UART_BASE' generated/csr.h | cut -d ' ' -f 5 | cut -c 3-6`
#UART_ADDR="${csr_base}${uart_base}"
#defsyms="-defsym $UART_ADDR"
#
#uart_base=`grep 'CSR_UART_1_BASE' generated/csr.h | cut -d ' ' -f 5 | cut -c 3-6`
#if [[ "$uart_base" != "" ]] ; then
# UART_1_ADDR="${csr_base}${uart_base}"
# defsyms="$defsyms -defsym $UART_1_ADDR"
#fi
#
#uart_base=`grep 'CSR_UART_2_BASE' generated/csr.h | cut -d ' ' -f 5 | cut -c 3-6`
#if [[ "$uart_base" != "" ]] ; then
# UART_2_ADDR="${csr_base}${uart_base}"
# defsyms="$defsyms -defsym $UART_2_ADDR"
#fi
#
#leds_base=`grep 'CSR_LEDS_BASE' generated/csr.h | cut -d ' ' -f 5 | cut -c 3-6`
#if [[ "$leds_base" != "" ]] ; then
# LEDS_ADDR="${csr_base}${leds_base}"
# defsyms="$defsyms -defsym $LEDS_ADDR"
#fi
#
#echo "CSR Addresses"
#echo "Console UART: ${UART_ADDR}"
#echo " LEDS: ${LEDS_ADDR}"
#echo " UART_1: ${UART_1_ADDR}"
#echo " UART_2: ${UART_1_ADDR}"

# a2o nanokernel

echo -n "Compiling..."

echo -n "boot.s "
#powerpc-linux-gnu-as -defsym UART_ADDR=$UART_ADDR -defsym LEDS_ADDR=$LEDS_ADDR -defsym UNHANDLED=1 -mbig-endian -mpower9 -I./asm asm/cmod7-boot.s -ahlnd -o crt0.o > crt0.lst
powerpc-linux-gnu-as -mbig-endian -ma2 -I. boot.s -ahlnd -o crt0.o > crt0.lst
if [ $? -ne 0 ]; then
exit
fi

echo -n "bios.c "
powerpc-linux-gnu-gcc -c -I. $CFLAGS bios.c

echo ""
echo "Linking..."
powerpc-linux-gnu-ld -nostdlib -nodefaultlibs -T linker2.ld crt0.o bios.o -o rom
if [ $? -ne 0 ]; then
exit
fi

powerpc-linux-gnu-objdump -d rom > rom.d #wtf: why not getting labels in asm code?
powerpc-linux-gnu-objdump -s rom > rom.s
#powerpc-linux-gnu-objcopy --change-section-lma .bios=0x10000 -O binary rom rom.bin
powerpc-linux-gnu-objcopy -O binary rom rom.bin

#python3 -m litex.soc.software.memusage rom ./generated/regions.ld powerpc-linux-gnu

# make rom.bin.hex
bin/bin2init rom.bin
mv rom.bin.hex rom.init

echo "Built rom.d, rom.s, rom.init."

romsize=`grep rom regions.ld | cut -d " " -f 8 | cut -c 3-10`

echo "Hardware ROM Size $romsize"
#echo ""
#echo "CSR Addresses"
#echo "Console UART: ${UART_ADDR}"
#echo " LEDS: ${LEDS_ADDR}"
#echo " UART_1: ${UART_1_ADDR}"
#echo " UART_2: ${UART_2_ADDR}"
#

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1 # © IBM Corp. 2022
2 # Licensed under and subject to the terms of the CC-BY 4.0
3 # license (https://creativecommons.org/licenses/by/4.0/legalcode).
4 # Additional rights, including the right to physically implement a softcore
5 # that is compliant with the required sections of the Power ISA
6 # Specification, will be available at no cost via the OpenPOWER Foundation.
7 # This README will be updated with additional information when OpenPOWER's
8 # license is available.
9
10 # boot kernel
11 # resets to 32BE
12 # set up translations for starting bios (inc. BE/LE)
13 # copy modifiable rom data to ram - or do in bios?
14 # set up msr for running bios (inc. 32/64)
15 # jump to bios
16
17
18 .include "defines.s"
1 # © IBM Corp. 2020
2 # Licensed under and subject to the terms of the CC-BY 4.0
3 # license (https://creativecommons.org/licenses/by/4.0/legalcode).
4 # Additional rights, including the right to physically implement a softcore
5 # that is compliant with the required sections of the Power ISA
6 # Specification, will be available at no cost via the OpenPOWER Foundation.
7 # This README will be updated with additional information when OpenPOWER's
8 # license is available.
9
10 #-----------------------------------------
11 # Defines
12 #-----------------------------------------
13
14 # Regs
15
16 .set r0, 0
17 .set r1, 1
18 .set r2, 2
19 .set r3, 3
20 .set r4, 4
21 .set r5, 5
22 .set r6, 6
23 .set r7, 7
24 .set r8, 8
25 .set r9, 9
26 .set r10,10
27 .set r11,11
28 .set r12,12
29 .set r13,13
30 .set r14,14
31 .set r15,15
32 .set r16,16
33 .set r17,17
34 .set r18,18
35 .set r19,19
36 .set r20,20
37 .set r21,21
38 .set r22,22
39 .set r23,23
40 .set r24,24
41 .set r25,25
42 .set r26,26
43 .set r27,27
44 .set r28,28
45 .set r29,29
46 .set r30,30
47 .set r31,31
48
49 .set f0, 0
50 .set f1, 1
51 .set f2, 2
52 .set f3, 3
53 .set f4, 4
54 .set f5, 5
55 .set f6, 6
56 .set f7, 7
57 .set f8, 8
58 .set f9, 9
59 .set f10,10
60 .set f11,11
61 .set f12,12
62 .set f13,13
63 .set f14,14
64 .set f15,15
65 .set f16,16
66 .set f17,17
67 .set f18,18
68 .set f19,19
69 .set f20,20
70 .set f21,21
71 .set f22,22
72 .set f23,23
73 .set f24,24
74 .set f25,25
75 .set f26,26
76 .set f27,27
77 .set f28,28
78 .set f29,29
79 .set f30,30
80 .set f31,31
81
82 .set cr0, 0
83 .set cr1, 1
84 .set cr2, 2
85 .set cr3, 3
86 .set cr4, 4
87 .set cr5, 5
88 .set cr6, 6
89 .set cr7, 7
90
91 # SPR numbers
92
93 .set srr0, 26
94 .set srr1, 27
95 .set epcr, 307
96 .set tar, 815
97
98 .set dbsr, 304
99 .set dbcr0, 308
100 .set dbcr1, 309
101 .set dbcr2, 310
102 .set dbcr3, 848
103
104 .set ivpr, 63
105
106 .set iucr0, 1011
107 .set iucr1, 883
108 .set iucr2, 884
109
110 .set iudbg0, 888
111 .set iudbg1, 889
112 .set iudbg2, 890
113 .set iulfsr, 891
114 .set iullcr, 892
115
116 .set mmucr0, 1020
117 .set mmucr1, 1021
118 .set mmucr2, 1022
119 .set mmucr3, 1023
120
121 .set tb, 268
122 .set tbl, 284
123 .set tbh, 285
124
125 .set dec, 22
126 .set udec, 550
127 .set tsr, 336
128 .set tcr, 340
129
130 .set xucr0, 1014
131 .set xucr1, 851
132 .set xucr2, 1016
133 .set xucr3, 852
134 .set xucr4, 853
135
136 .set tens, 438
137 .set tenc, 439
138 .set tensr, 437
139
140 .set pid, 48
141 .set pir, 286
142 .set pvr, 287
143 .set tir, 446
144
19
20 .macro load32 rx,v
21 li \rx,0
22 oris \rx,\rx,\v>>16
23 ori \rx,\rx,\v&0x0000FFFF
24 .endm
25
26 .macro load16swiz rx,v
27 li \rx,0
28 ori \rx,\rx,(\v<<8)&0xFF00
29 ori \rx,\rx,(\v>>8)&0x00FF
30 .endm
31
32 # constants from linker script, or defsym
33
34 .ifdef BIOS_32
35 # sup MSR cm=1 ce=1 ee=1 pr=0 fp=1 me=1 fe=00 de=0 is=0 ds=0
36 .set BIOS_MSR,0x0002B000
37 .else
38 # sup MSR cm=1 ce=1 ee=1 pr=0 fp=1 me=1 fe=00 de=0 is=0 ds=0
39 .set BIOS_MSR,0x8002B000
40 .endif
41
42 # erat w2 (test) # word 2 wlc=40:41 rsvd=42 u=44:47 r=48 c=49 wimge=52:56 vf=57 ux/sx=58:59 uw/s
43 .ifdef BIOS_LE
44 .set BIOS_ERATW2,0x000000BF
45 .else
46 .set BIOS_ERATW2,0x0000003F
47 .endif
48
49 # bios might be able to use one stack during thread startup if careful
50 .ifndef BIOS_STACK_0
51 .set BIOS_STACK_0,_stack_0
52 .endif
53
54 .ifndef BIOS_STACK_1
55 .set BIOS_STACK_1,_stack_1
56 .endif
57
58 .ifndef BIOS_START
59 .set BIOS_START,0x00010000
60 .endif
61
62 .section .text
63
64 .global _start
65
66 .org 0x000
67 _start:
68 int_000:
69 0000 48000400 b boot_start
70
71 # critical input
72 0004 00000000 .org 0x020
72 00000000
72 00000000
72 00000000
72 00000000
73 int_020:
74 .ifndef INT_UNHANDLED
75 0020 48000000 b .
76 .else
77 b INT_UNHANDLED
78 .endif
79
80 # debug
81 0024 00000000 .org 0x040
81 00000000
81 00000000
81 00000000
81 00000000
82 int_040:
83 0040 48000000 b .
84
85 # dsi
86 0044 00000000 .org 0x060
86 00000000
86 00000000
86 00000000
86 00000000
87 int_060:
88 0060 48000000 b .
89
90 # isi
91 0064 00000000 .org 0x080
91 00000000
91 00000000
91 00000000
91 00000000
92 int_080:
93 0080 48000000 b .
94
95 # external
96 0084 00000000 .org 0x0A0
96 00000000
96 00000000
96 00000000
96 00000000
97 int_0A0:
98 00a0 48000000 b .
99
100 # alignment
101 00a4 00000000 .org 0x0C0
101 00000000
101 00000000
101 00000000
101 00000000
102 int_0C0:
103 00c0 48000000 b .
104
105 # program
106 00c4 00000000 .org 0x0E0
106 00000000
106 00000000
106 00000000
106 00000000
107 int_0E0:
108 00e0 48000000 b .
109
110 # fp unavailable
111 00e4 00000000 .org 0x100
111 00000000
111 00000000
111 00000000
111 00000000
112 int_100:
113 0100 48000000 b .
114
115 # sc
116 0104 00000000 .org 0x120
116 00000000
116 00000000
116 00000000
116 00000000
117 int_120:
118 0120 48000000 b .
119
120 # apu unavailable
121 0124 00000000 .org 0x140
121 00000000
121 00000000
121 00000000
121 00000000
122 int_140:
123 0140 48000000 b .
124
125 # decrementer
126 0144 00000000 .org 0x160
126 00000000
126 00000000
126 00000000
126 00000000
127 int_160:
128 0160 48000000 b .
129
130 # fit
131 0164 00000000 .org 0x180
131 00000000
131 00000000
131 00000000
131 00000000
132 int_180:
133 0180 48000000 b .
134
135 # watchdog
136 0184 00000000 .org 0x1A0
136 00000000
136 00000000
136 00000000
136 00000000
137 int_1A0:
138 01a0 48000000 b .
139
140 # dtlb
141 01a4 00000000 .org 0x1C0
141 00000000
141 00000000
141 00000000
141 00000000
142 int_1C0:
143 01c0 48000000 b .
144
145 # itlb
146 01c4 00000000 .org 0x1E0
146 00000000
146 00000000
146 00000000
146 00000000
147 int_1E0:
148 01e0 48000000 b .
149
150 # vector unavailable
151 01e4 00000000 .org 0x200
151 00000000
151 00000000
151 00000000
151 00000000
152 int_200:
153 0200 48000000 b .
154
155 #
156 0204 00000000 .org 0x220
156 00000000
156 00000000
156 00000000
156 00000000
157 int_220:
158 0220 48000000 b .
159
160 #
161 0224 00000000 .org 0x240
161 00000000
161 00000000
161 00000000
161 00000000
162 int_240:
163 0240 48000000 b .
164
165 #
166 0244 00000000 .org 0x260
166 00000000
166 00000000
166 00000000
166 00000000
167 int_260:
168 0260 48000000 b .
169
170 # doorbell
171 0264 00000000 .org 0x280
171 00000000
171 00000000
171 00000000
171 00000000
172 int_280:
173 0280 48000000 b .
174
175 # doorbell critical
176 0284 00000000 .org 0x2A0
176 00000000
176 00000000
176 00000000
176 00000000
177 int_2A0:
178 02a0 48000000 b .
179
180 # doorbell guest
181 02a4 00000000 .org 0x2C0
181 00000000
181 00000000
181 00000000
181 00000000
182 int_2C0:
183 02c0 48000000 b .
184
185 # doorbell guest critical
186 02c4 00000000 .org 0x2E0
186 00000000
186 00000000
186 00000000
186 00000000
187 int_2E0:
188 02e0 48000000 b .
189
190 # hvsc
191 02e4 00000000 .org 0x300
191 00000000
191 00000000
191 00000000
191 00000000
192 int_300:
193 0300 48000000 b .
194
195 # hvpriv
196 0304 00000000 .org 0x320
196 00000000
196 00000000
196 00000000
196 00000000
197 int_320:
198 0320 48000000 b .
199
200 # lrat
201 0324 00000000 .org 0x340
201 00000000
201 00000000
201 00000000
201 00000000
202 int_340:
203 0340 48000000 b .
204
205 # -------------------------------------------------------------------------------------------------
206 # initial translation
207 # both erats:
208 # 00000000 64K: (rom, BE)
209 # 00010000 64K: (ram, BE or LE)
210 #
211 0344 00000000 .org 0x400
211 00000000
211 00000000
211 00000000
211 00000000
212 boot_start:
213
214 0400 7CBE6AA6 mfspr r5,tir # who am i?
215 0404 2C250000 cmpdi r5,0x00 # skip unless T0
216 0408 408200E0 bne init_t123
217
218 040c 3C608C00 lis r3,0x8C00 # 32=ecl 36:37=tlbsel (10=i, 11=d)
219
220 # derat 31 @00000000
221 0410 3800001F li r0,0x001F # entry #31
222 0414 38400015 li r2,0x0015 # word 2 wlc=40:41 rsvd=42 u=44:47 r=48 c=49 wimge=52:56 vf=57 ux/
223 0418 38800000 li r4,0 # word 1 rpn(32:51)=32:51 rpn(22:31)=54:63
224 041c 3900023F li r8,0x023F # word 0 epn=32:51 class=52:53 v=54 x=55 size=56:59 thrd=60:63 s
225
226 0420 7C7CFBA6 mtspr mmucr0,r3
227 0424 7C4011A6 eratwe r2,r0,2
228 0428 7C8009A6 eratwe r4,r0,1
229 042c 7D0001A6 eratwe r8,r0,0
230 0430 4C00012C isync
231
232 0434 39400000 load32 r10,BIOS_ERATW2 # word 2 wlc=40:41 rsvd=42 u=44:47 r=48 c=49 wimge=52:56 vf=57 ux/
232 654A0000
232 614A003F
233
234 # derat 30 @<BIOS_START>
235 0440 3800001E li r0,0x001E # entry #30
236 0444 38800000 load32 r4,BIOS_START # word 1 rpn(32:51)=32:51 rpn(22:31)=54:63
236 64840001
236 60840000
237 0450 39000000 load32 r8,BIOS_START
237 65080001
237 61080000
238 045c 6108023F ori r8,r8,0x023F # word 0 epn=32:51 class=52:53 v=54 x=55 size=56:59 thrd=60:63 s
239
240 0460 7D4011A6 eratwe r10,r0,2
241 0464 7C8009A6 eratwe r4,r0,1
242 0468 7D0001A6 eratwe r8,r0,0
243 046c 4C00012C isync
244
245 0470 3C608800 lis r3,0x8800 # 32=ecl 36:37=tlbsel (10=i, 11=d)
246
247 # ierat 15 @00000000
248 0474 3800000F li r0,0x000F # entry #15
249 0478 3840003F li r2,0x003F # word 2 wlc=40:41 rsvd=42 u=44:47 r=48 c=49 wimge=52:56 vf=57 ux/
250 047c 38800000 li r4,0 # word 1 rpn(32:51)=32:51 rpn(22:31)=54:63
251 0480 3900023F li r8,0x023F # word 0 epn=32:51 class=52:53 v=54 x=55 size=56:59 thrd=60:63 s
252
253 0484 7C7CFBA6 mtspr mmucr0,r3
254 0488 7C4011A6 eratwe r2,r0,2
255 048c 7C8009A6 eratwe r4,r0,1
256 0490 7D0001A6 eratwe r8,r0,0
257 0494 4C00012C isync
258
259 # *** leave the init'd entry 14 for MT access to FFFFFFC0
260 # ierat 13 @<BIOS_START>
261 0498 3800000D li r0,0x000D # entry #13
262 049c 38800000 load32 r4,BIOS_START # word 1 rpn(32:51)=32:51 rpn(22:31)=54:63
262 64840001
262 60840000
263 04a8 39000000 load32 r8,BIOS_START
263 65080001
263 61080000
264 04b4 6108023F ori r8,r8,0x023F # word 0 epn=32:51 class=52:53 v=54 x=55 size=56:59 thrd=60:63 s
265
266 04b8 7D4011A6 eratwe r10,r0,2
267 04bc 7C8009A6 eratwe r4,r0,1
268 04c0 7D0001A6 eratwe r8,r0,0
269 04c4 4C00012C isync
270
271 04c8 48000004 b init_t0
272
273 # -------------------------------------------------------------------------------------------------
274 # init
275 #
276
277 # T0
278
279 init_t0:
280
281 # set up BIOS msr
282
283 04cc 39400000 load32 r10,BIOS_MSR
283 654A8002
283 614AB000
284 04d8 7D400124 mtmsr r10
285 04dc 4C00012C isync
286 # can't use load32 unless you can .set BIOS_STACK_0 to the linked value
287 # load32 r1,BIOS_STACK_0 # @stack_0
288 # this ignores def
289 # lis r1,_stack_0@h
290 # ori r1,r1,_stack_0@l
291 # this requires data load
292 04e0 80200000 lwz r1,stack_0(r0)
293
294 04e4 48000020 b boot_complete
295
296 # except T0
297
298 init_t123:
299
300 # set up BIOS msr
301
302 04e8 39400000 load32 r10,BIOS_MSR
302 654A8002
302 614AB000
303 04f4 7D400124 mtmsr r10
304 04f8 4C00012C isync
305 # check tir if more than 2 threads possible
306 04fc 80200000 lwz r1,stack_1(r0)
307
308 0500 48000004 b boot_complete
309
310 # -------------------------------------------------------------------------------------------------
311 boot_complete:
312
313 # set up thread and hop to it
314
315 0504 3C600000 lis r3,main@h
316 0508 60630000 ori r3,r3,main@l
317 050c 7C6903A6 mtctr r3
318 0510 7C7E6AA6 mfspr r3,tir # who am i?
319 0514 4E800421 bctrl
320 0518 480002E4 b kernel_return
321
322 # -------------------------------------------------------------------------------------------------
323
324 051c 00000000 .org 0x7FC
324 00000000
324 00000000
324 00000000
324 00000000
325 kernel_return:
326 07fc 48000000 b .
327
328 # dec
329 .org 0x800
330 int_800:
331 0800 48000000 b .
332
333 # perf
334 0804 00000000 .org 0x820
334 00000000
334 00000000
334 00000000
334 00000000
335 int_820:
336 0820 48000000 b .
337
338 0824 00000000 .org 0x8F0
338 00000000
338 00000000
338 00000000
338 00000000
339 .section .rodata
340 0000 00000000 stack_0: .long BIOS_STACK_0
341 0004 00000000 stack_1: .long BIOS_STACK_1

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144
dev/src/test2/defines.s
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# © IBM Corp. 2020
# Licensed under and subject to the terms of the CC-BY 4.0
# license (https://creativecommons.org/licenses/by/4.0/legalcode).
# Additional rights, including the right to physically implement a softcore
# that is compliant with the required sections of the Power ISA
# Specification, will be available at no cost via the OpenPOWER Foundation.
# This README will be updated with additional information when OpenPOWER's
# license is available.

#-----------------------------------------
# Defines
#-----------------------------------------

# Regs

.set r0, 0
.set r1, 1
.set r2, 2
.set r3, 3
.set r4, 4
.set r5, 5
.set r6, 6
.set r7, 7
.set r8, 8
.set r9, 9
.set r10,10
.set r11,11
.set r12,12
.set r13,13
.set r14,14
.set r15,15
.set r16,16
.set r17,17
.set r18,18
.set r19,19
.set r20,20
.set r21,21
.set r22,22
.set r23,23
.set r24,24
.set r25,25
.set r26,26
.set r27,27
.set r28,28
.set r29,29
.set r30,30
.set r31,31

.set f0, 0
.set f1, 1
.set f2, 2
.set f3, 3
.set f4, 4
.set f5, 5
.set f6, 6
.set f7, 7
.set f8, 8
.set f9, 9
.set f10,10
.set f11,11
.set f12,12
.set f13,13
.set f14,14
.set f15,15
.set f16,16
.set f17,17
.set f18,18
.set f19,19
.set f20,20
.set f21,21
.set f22,22
.set f23,23
.set f24,24
.set f25,25
.set f26,26
.set f27,27
.set f28,28
.set f29,29
.set f30,30
.set f31,31

.set cr0, 0
.set cr1, 1
.set cr2, 2
.set cr3, 3
.set cr4, 4
.set cr5, 5
.set cr6, 6
.set cr7, 7

# SPR numbers

.set srr0, 26
.set srr1, 27
.set epcr, 307
.set tar, 815

.set dbsr, 304
.set dbcr0, 308
.set dbcr1, 309
.set dbcr2, 310
.set dbcr3, 848

.set ivpr, 63

.set iucr0, 1011
.set iucr1, 883
.set iucr2, 884

.set iudbg0, 888
.set iudbg1, 889
.set iudbg2, 890
.set iulfsr, 891
.set iullcr, 892

.set mmucr0, 1020
.set mmucr1, 1021
.set mmucr2, 1022
.set mmucr3, 1023

.set tb, 268
.set tbl, 284
.set tbh, 285

.set dec, 22
.set udec, 550
.set tsr, 336
.set tcr, 340

.set xucr0, 1014
.set xucr1, 851
.set xucr2, 1016
.set xucr3, 852
.set xucr4, 853

.set tens, 438
.set tenc, 439
.set tensr, 437

.set pid, 48
.set pir, 286
.set pvr, 287
.set tir, 446

86
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/* this version puts kernel at rom start and bios at ram start

/* define format
INCLUDE output_format.ld */
OUTPUT_FORMAT("elf32-powerpc")

ENTRY(_start)

/* define origin, len of rom, ram, csr */
INCLUDE regions.ld

SECTIONS
{
/* kernel code */
.kernel :
{
/*_fkernel = .; */
*crt0*(.text)
KEEP(*crt0*(.text))
*(.gnu.linkonce.t.*)
_ekernel = .;
} > rom

.rodata :
{
. = ALIGN(8);
_frodata = .;
*(.rodata .rodata.* .gnu.linkonce.r.*)
*(.rodata1)
*(.got2 .got2.*)
*(.toc .toc.*)
FILL(0);
. = ALIGN(8);
_erodata = .;
} > rom

/* kernel data to be copied to ram by rom code...*/
.data :
{
. = ALIGN(8);
_fdata = .;
*(.data .data.* .gnu.linkonce.d.*)
FILL(0);
. = ALIGN(8);
_edata = .;
} > ram AT > rom

/* bios code */
.bios :
{
. = ALIGN(4);
bios.o (.text .text* .gnu.linkonce.t.*)
. = ALIGN(4);
} > ram AT > ram

.bss :
{
. = ALIGN(8);
_fbss = .;
*(.dynsbss)
*(.sbss .sbss.* .gnu.linkonce.sb.*)
*(.scommon)
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(8);
_ebss = .;
_end = .;
} > ram

/DISCARD/ :
{
*(.eh_frame)
*(.comment)
*(.gnu.attributes)
}

}

PROVIDE(_stack_size = 0x00010000);
PROVIDE(_stack_0 = ORIGIN(ram) + LENGTH(ram) - 8);
PROVIDE(_stack_1 = _stack_0 - _stack_size);

PROVIDE(_fdata_rom = LOADADDR(.data));
PROVIDE(_edata_rom = LOADADDR(.data) + SIZEOF(.data));
PROVIDE(_bios_start = LOADADDR(.bios));

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/* this version puts kernel and bios at rom start

/* define format
INCLUDE output_format.ld */
OUTPUT_FORMAT("elf32-powerpc")

ENTRY(_start)

/* define origin, len of rom, ram, csr */
INCLUDE regions.ld

SECTIONS
{
/* kernel code */
.kernel :
{
/*_fkernel = .; */
*crt0*(.text)
KEEP(*crt0*(.text))
*(.gnu.linkonce.t.*)
_ekernel = .;
} > rom

.rodata :
{
. = ALIGN(8);
_frodata = .;
*(.rodata .rodata.* .gnu.linkonce.r.*)
*(.rodata1)
*(.got2 .got2.*)
*(.toc .toc.*)
FILL(0);
. = ALIGN(8);
_erodata = .;
} > rom

/* bios code */
.bios :
{
. = ALIGN(32);
bios.o (.text .text* .gnu.linkonce.t.*)
. = ALIGN(4);
} > rom

/* kernel data to be copied to ram by rom code...*/
.data :
{
. = ALIGN(8);
_fdata = .;
*(.data .data.* .gnu.linkonce.d.*)
FILL(0);
. = ALIGN(8);
_edata = .;
} > ram AT > rom

.bss :
{
. = ALIGN(8);
_fbss = .;
*(.dynsbss)
*(.sbss .sbss.* .gnu.linkonce.sb.*)
*(.scommon)
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(8);
_ebss = .;
_end = .;
} > ram

/DISCARD/ :
{
*(.eh_frame)
*(.comment)
*(.gnu.attributes)
}

}

PROVIDE(_stack_size = 0x00010000);
PROVIDE(_stack_0 = ORIGIN(ram) + LENGTH(ram) - 8);
PROVIDE(_stack_1 = _stack_0 - _stack_size);

PROVIDE(_fdata_rom = LOADADDR(.data));
PROVIDE(_edata_rom = LOADADDR(.data) + SIZEOF(.data));
PROVIDE(_bios_start = LOADADDR(.bios));

21
dev/src/test2/readme.md
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# Updating build process - test1

* 32b crosscompile
* partial original test kernel plus bios.c to complete boot
* this version puts kernel at rom start and bios at ram start (different erat entries)

```
build

# create mem file for coco sim
cp rom.init test2
```

* this version puts kernel and bios in rom

```
build2

# create mem file for coco sim
cp rom.init test2
```

5
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MEMORY {
rom : ORIGIN = 0x00000000, LENGTH = 0x00010000
ram : ORIGIN = 0x00010000, LENGTH = 0x00010000
csr : ORIGIN = 0xFFF00000, LENGTH = 0x00010000
}

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319
dev/src/test2/rom.d
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rom: file format elf32-powerpc


Disassembly of section .kernel:

00000000 <_start>:
0: 48 00 04 00 b 400 <boot_start>
...

00000020 <int_020>:
20: 48 00 00 00 b 20 <int_020>
...

00000040 <int_040>:
40: 48 00 00 00 b 40 <int_040>
...

00000060 <int_060>:
60: 48 00 00 00 b 60 <int_060>
...

00000080 <int_080>:
80: 48 00 00 00 b 80 <int_080>
...

000000a0 <int_0A0>:
a0: 48 00 00 00 b a0 <int_0A0>
...

000000c0 <int_0C0>:
c0: 48 00 00 00 b c0 <int_0C0>
...

000000e0 <int_0E0>:
e0: 48 00 00 00 b e0 <int_0E0>
...

00000100 <int_100>:
100: 48 00 00 00 b 100 <int_100>
...

00000120 <int_120>:
120: 48 00 00 00 b 120 <int_120>
...

00000140 <int_140>:
140: 48 00 00 00 b 140 <int_140>
...

00000160 <int_160>:
160: 48 00 00 00 b 160 <int_160>
...

00000180 <int_180>:
180: 48 00 00 00 b 180 <int_180>
...

000001a0 <int_1A0>:
1a0: 48 00 00 00 b 1a0 <int_1A0>
...

000001c0 <int_1C0>:
1c0: 48 00 00 00 b 1c0 <int_1C0>
...

000001e0 <int_1E0>:
1e0: 48 00 00 00 b 1e0 <int_1E0>
...

00000200 <int_200>:
200: 48 00 00 00 b 200 <int_200>
...

00000220 <int_220>:
220: 48 00 00 00 b 220 <int_220>
...

00000240 <int_240>:
240: 48 00 00 00 b 240 <int_240>
...

00000260 <int_260>:
260: 48 00 00 00 b 260 <int_260>
...

00000280 <int_280>:
280: 48 00 00 00 b 280 <int_280>
...

000002a0 <int_2A0>:
2a0: 48 00 00 00 b 2a0 <int_2A0>
...

000002c0 <int_2C0>:
2c0: 48 00 00 00 b 2c0 <int_2C0>
...

000002e0 <int_2E0>:
2e0: 48 00 00 00 b 2e0 <int_2E0>
...

00000300 <int_300>:
300: 48 00 00 00 b 300 <int_300>
...

00000320 <int_320>:
320: 48 00 00 00 b 320 <int_320>
...

00000340 <int_340>:
340: 48 00 00 00 b 340 <int_340>
...

00000400 <boot_start>:
400: 7c be 6a a6 mfspr r5,446
404: 2c 25 00 00 cmpdi r5,0
408: 40 82 00 e0 bne 4e8 <init_t123>
40c: 3c 60 8c 00 lis r3,-29696
410: 38 00 00 1f li r0,31
414: 38 40 00 15 li r2,21
418: 38 80 00 00 li r4,0
41c: 39 00 02 3f li r8,575
420: 7c 7c fb a6 mtspr 1020,r3
424: 7c 40 11 a6 eratwe r2,r0,2
428: 7c 80 09 a6 eratwe r4,r0,1
42c: 7d 00 01 a6 mtfprwa f8,r0
430: 4c 00 01 2c isync
434: 39 40 00 00 li r10,0
438: 65 4a 00 00 oris r10,r10,0
43c: 61 4a 00 3f ori r10,r10,63
440: 38 00 00 1e li r0,30
444: 38 80 00 00 li r4,0
448: 64 84 00 01 oris r4,r4,1
44c: 60 84 00 00 ori r4,r4,0
450: 39 00 00 00 li r8,0
454: 65 08 00 01 oris r8,r8,1
458: 61 08 00 00 ori r8,r8,0
45c: 61 08 02 3f ori r8,r8,575
460: 7d 40 11 a6 eratwe r10,r0,2
464: 7c 80 09 a6 eratwe r4,r0,1
468: 7d 00 01 a6 mtfprwa f8,r0
46c: 4c 00 01 2c isync
470: 3c 60 88 00 lis r3,-30720
474: 38 00 00 0f li r0,15
478: 38 40 00 3f li r2,63
47c: 38 80 00 00 li r4,0
480: 39 00 02 3f li r8,575
484: 7c 7c fb a6 mtspr 1020,r3
488: 7c 40 11 a6 eratwe r2,r0,2
48c: 7c 80 09 a6 eratwe r4,r0,1
490: 7d 00 01 a6 mtfprwa f8,r0
494: 4c 00 01 2c isync
498: 38 00 00 0d li r0,13
49c: 38 80 00 00 li r4,0
4a0: 64 84 00 01 oris r4,r4,1
4a4: 60 84 00 00 ori r4,r4,0
4a8: 39 00 00 00 li r8,0
4ac: 65 08 00 01 oris r8,r8,1
4b0: 61 08 00 00 ori r8,r8,0
4b4: 61 08 02 3f ori r8,r8,575
4b8: 7d 40 11 a6 eratwe r10,r0,2
4bc: 7c 80 09 a6 eratwe r4,r0,1
4c0: 7d 00 01 a6 mtfprwa f8,r0
4c4: 4c 00 01 2c isync
4c8: 48 00 00 04 b 4cc <init_t0>

000004cc <init_t0>:
4cc: 39 40 00 00 li r10,0
4d0: 65 4a 80 02 oris r10,r10,32770
4d4: 61 4a b0 00 ori r10,r10,45056
4d8: 7d 40 01 24 mtmsr r10
4dc: 4c 00 01 2c isync
4e0: 80 20 08 f0 lwz r1,2288(0)
4e4: 48 00 00 20 b 504 <boot_complete>

000004e8 <init_t123>:
4e8: 39 40 00 00 li r10,0
4ec: 65 4a 80 02 oris r10,r10,32770
4f0: 61 4a b0 00 ori r10,r10,45056
4f4: 7d 40 01 24 mtmsr r10
4f8: 4c 00 01 2c isync
4fc: 80 20 08 f4 lwz r1,2292(0)
500: 48 00 00 04 b 504 <boot_complete>

00000504 <boot_complete>:
504: 3c 60 00 00 lis r3,0
508: 60 63 09 00 ori r3,r3,2304
50c: 7c 69 03 a6 mtctr r3
510: 7c 7e 6a a6 mfspr r3,446
514: 4e 80 04 21 bctrl
518: 48 00 02 e4 b 7fc <kernel_return>
...

000007fc <kernel_return>:
7fc: 48 00 00 00 b 7fc <kernel_return>

00000800 <int_800>:
800: 48 00 00 00 b 800 <int_800>
...

00000820 <int_820>:
820: 48 00 00 00 b 820 <int_820>
...

Disassembly of section .bios:

000008f8 <main-0x8>:
8f8: 60 00 00 00 nop
8fc: 60 00 00 00 nop

00000900 <main>:
900: 94 21 ff c0 stwu r1,-64(r1)
904: 90 61 00 38 stw r3,56(r1)
908: 3d 20 00 01 lis r9,1
90c: 81 29 00 00 lwz r9,0(r9)
910: 91 21 00 0c stw r9,12(r1)
914: 81 21 00 38 lwz r9,56(r1)
918: 2c 09 00 00 cmpwi r9,0
91c: 41 82 00 0c beq 928 <main+0x28>
920: 39 20 ff ff li r9,-1
924: 48 00 01 7c b aa0 <main+0x1a0>
928: 3d 20 00 00 lis r9,0
92c: 81 29 0a ac lwz r9,2732(r9)
930: 91 21 00 08 stw r9,8(r1)
934: 48 00 00 28 b 95c <main+0x5c>
938: 81 21 00 0c lwz r9,12(r1)
93c: 39 49 00 04 addi r10,r9,4
940: 91 41 00 0c stw r10,12(r1)
944: 81 41 00 08 lwz r10,8(r1)
948: 81 4a 00 00 lwz r10,0(r10)
94c: 91 49 00 00 stw r10,0(r9)
950: 81 21 00 08 lwz r9,8(r1)
954: 39 29 00 04 addi r9,r9,4
958: 91 21 00 08 stw r9,8(r1)
95c: 3d 20 00 00 lis r9,0
960: 81 29 0a ac lwz r9,2732(r9)
964: 81 41 00 08 lwz r10,8(r1)
968: 7c 0a 48 40 cmplw r10,r9
96c: 41 80 ff cc blt 938 <main+0x38>
970: 3d 20 00 01 lis r9,1
974: 81 29 00 00 lwz r9,0(r9)
978: 91 21 00 08 stw r9,8(r1)
97c: 48 00 00 20 b 99c <main+0x9c>
980: 3d 20 00 01 lis r9,1
984: 81 29 00 00 lwz r9,0(r9)
988: 39 40 00 00 li r10,0
98c: 91 49 00 00 stw r10,0(r9)
990: 81 21 00 08 lwz r9,8(r1)
994: 39 29 00 04 addi r9,r9,4
998: 91 21 00 08 stw r9,8(r1)
99c: 3d 20 00 01 lis r9,1
9a0: 81 29 00 00 lwz r9,0(r9)
9a4: 81 41 00 08 lwz r10,8(r1)
9a8: 7c 0a 48 40 cmplw r10,r9
9ac: 41 80 ff d4 blt 980 <main+0x80>
9b0: 3d 20 03 00 lis r9,768
9b4: 91 21 00 30 stw r9,48(r1)
9b8: 81 21 00 30 lwz r9,48(r1)
9bc: 3c 80 00 00 lis r4,0
9c0: 60 84 00 09 ori r4,r4,9
9c4: 7c 93 4b a6 mtspr 307,r4
9c8: 60 00 00 00 nop
9cc: 39 20 00 00 li r9,0
9d0: 91 21 00 2c stw r9,44(r1)
9d4: 81 21 00 2c lwz r9,44(r1)
9d8: 3c 80 00 00 lis r4,0
9dc: 60 84 00 09 ori r4,r4,9
9e0: 7c 96 03 a6 mtdec r4
9e4: 60 00 00 00 nop
9e8: 39 20 00 00 li r9,0
9ec: 91 21 00 28 stw r9,40(r1)
9f0: 81 21 00 28 lwz r9,40(r1)
9f4: 3c 80 00 00 lis r4,0
9f8: 60 84 00 09 ori r4,r4,9
9fc: 7c 9d 43 a6 mttbu r4
a00: 60 00 00 00 nop
a04: 39 20 00 00 li r9,0
a08: 91 21 00 24 stw r9,36(r1)
a0c: 81 21 00 24 lwz r9,36(r1)
a10: 3c 80 00 00 lis r4,0
a14: 60 84 00 09 ori r4,r4,9
a18: 7c 9c 43 a6 mttbl r4
a1c: 60 00 00 00 nop
a20: 3d 20 fe 00 lis r9,-512
a24: 91 21 00 20 stw r9,32(r1)
a28: 81 21 00 20 lwz r9,32(r1)
a2c: 3c 80 00 00 lis r4,0
a30: 60 84 00 09 ori r4,r4,9
a34: 7c 90 53 a6 mtspr 336,r4
a38: 60 00 00 00 nop
a3c: 7d 36 fa a6 mfspr r9,1014
a40: 91 21 00 1c stw r9,28(r1)
a44: 81 21 00 1c lwz r9,28(r1)
a48: 55 29 05 ac rlwinm r9,r9,0,22,22
a4c: 91 21 00 18 stw r9,24(r1)
a50: 81 21 00 18 lwz r9,24(r1)
a54: 3c 80 00 00 lis r4,0
a58: 60 84 00 09 ori r4,r4,9
a5c: 7c 96 fb a6 mtspr 1014,r4
a60: 60 00 00 00 nop
a64: 39 20 00 00 li r9,0
a68: 91 21 00 14 stw r9,20(r1)
a6c: 81 21 00 14 lwz r9,20(r1)
a70: 3c 80 00 00 lis r4,0
a74: 60 84 00 09 ori r4,r4,9
a78: 7c 90 53 a6 mtspr 336,r4
a7c: 60 00 00 00 nop
a80: 39 20 00 00 li r9,0
a84: 91 21 00 10 stw r9,16(r1)
a88: 81 21 00 10 lwz r9,16(r1)
a8c: 3c 80 00 00 lis r4,0
a90: 60 84 00 09 ori r4,r4,9
a94: 7c 94 53 a6 mtspr 340,r4
a98: 60 00 00 00 nop
a9c: 39 20 00 00 li r9,0
aa0: 7d 23 4b 78 mr r3,r9
aa4: 38 21 00 40 addi r1,r1,64
aa8: 4e 80 00 20 blr

683
dev/src/test2/rom.init
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48000400
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00000000
7CBE6AA6
2C250000
408200E0
3C608C00
3800001F
38400015
38800000
3900023F
7C7CFBA6
7C4011A6
7C8009A6
7D0001A6
4C00012C
39400000
654A0000
614A003F
3800001E
38800000
64840001
60840000
39000000
65080001
61080000
6108023F
7D4011A6
7C8009A6
7D0001A6
4C00012C
3C608800
3800000F
3840003F
38800000
3900023F
7C7CFBA6
7C4011A6
7C8009A6
7D0001A6
4C00012C
3800000D
38800000
64840001
60840000
39000000
65080001
61080000
6108023F
7D4011A6
7C8009A6
7D0001A6
4C00012C
48000004
39400000
654A8002
614AB000
7D400124
4C00012C
802008F0
48000020
39400000
654A8002
614AB000
7D400124
4C00012C
802008F4
48000004
3C600000
60630900
7C6903A6
7C7E6AA6
4E800421
480002E4
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00000000
0001FFF8
0000FFF8
60000000
60000000
9421FFC0
90610038
3D200001
81290000
9121000C
81210038
2C090000
4182000C
3920FFFF
4800017C
3D200000
81290AAC
91210008
48000028
8121000C
39490004
9141000C
81410008
814A0000
91490000
81210008
39290004
91210008
3D200000
81290AAC
81410008
7C0A4840
4180FFCC
3D200001
81290000
91210008
48000020
3D200001
81290000
39400000
91490000
81210008
39290004
91210008
3D200001
81290000
81410008
7C0A4840
4180FFD4
3D200300
91210030
81210030
3C800000
60840009
7C934BA6
60000000
39200000
9121002C
8121002C
3C800000
60840009
7C9603A6
60000000
39200000
91210028
81210028
3C800000
60840009
7C9D43A6
60000000
39200000
91210024
81210024
3C800000
60840009
7C9C43A6
60000000
3D20FE00
91210020
81210020
3C800000
60840009
7C9053A6
60000000
7D36FAA6
9121001C
8121001C
552905AC
91210018
81210018
3C800000
60840009
7C96FBA6
60000000
39200000
91210014
81210014
3C800000
60840009
7C9053A6
60000000
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60000000
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7D234B78
38210040
4E800020

178
dev/src/test2/rom.s
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rom: file format elf32-powerpc

Contents of section .kernel:
0000 48000400 00000000 00000000 00000000 H...............
0010 00000000 00000000 00000000 00000000 ................
0020 48000000 00000000 00000000 00000000 H...............
0030 00000000 00000000 00000000 00000000 ................
0040 48000000 00000000 00000000 00000000 H...............
0050 00000000 00000000 00000000 00000000 ................
0060 48000000 00000000 00000000 00000000 H...............
0070 00000000 00000000 00000000 00000000 ................
0080 48000000 00000000 00000000 00000000 H...............
0090 00000000 00000000 00000000 00000000 ................
00a0 48000000 00000000 00000000 00000000 H...............
00b0 00000000 00000000 00000000 00000000 ................
00c0 48000000 00000000 00000000 00000000 H...............
00d0 00000000 00000000 00000000 00000000 ................
00e0 48000000 00000000 00000000 00000000 H...............
00f0 00000000 00000000 00000000 00000000 ................
0100 48000000 00000000 00000000 00000000 H...............
0110 00000000 00000000 00000000 00000000 ................
0120 48000000 00000000 00000000 00000000 H...............
0130 00000000 00000000 00000000 00000000 ................
0140 48000000 00000000 00000000 00000000 H...............
0150 00000000 00000000 00000000 00000000 ................
0160 48000000 00000000 00000000 00000000 H...............
0170 00000000 00000000 00000000 00000000 ................
0180 48000000 00000000 00000000 00000000 H...............
0190 00000000 00000000 00000000 00000000 ................
01a0 48000000 00000000 00000000 00000000 H...............
01b0 00000000 00000000 00000000 00000000 ................
01c0 48000000 00000000 00000000 00000000 H...............
01d0 00000000 00000000 00000000 00000000 ................
01e0 48000000 00000000 00000000 00000000 H...............
01f0 00000000 00000000 00000000 00000000 ................
0200 48000000 00000000 00000000 00000000 H...............
0210 00000000 00000000 00000000 00000000 ................
0220 48000000 00000000 00000000 00000000 H...............
0230 00000000 00000000 00000000 00000000 ................
0240 48000000 00000000 00000000 00000000 H...............
0250 00000000 00000000 00000000 00000000 ................
0260 48000000 00000000 00000000 00000000 H...............
0270 00000000 00000000 00000000 00000000 ................
0280 48000000 00000000 00000000 00000000 H...............
0290 00000000 00000000 00000000 00000000 ................
02a0 48000000 00000000 00000000 00000000 H...............
02b0 00000000 00000000 00000000 00000000 ................
02c0 48000000 00000000 00000000 00000000 H...............
02d0 00000000 00000000 00000000 00000000 ................
02e0 48000000 00000000 00000000 00000000 H...............
02f0 00000000 00000000 00000000 00000000 ................
0300 48000000 00000000 00000000 00000000 H...............
0310 00000000 00000000 00000000 00000000 ................
0320 48000000 00000000 00000000 00000000 H...............
0330 00000000 00000000 00000000 00000000 ................
0340 48000000 00000000 00000000 00000000 H...............
0350 00000000 00000000 00000000 00000000 ................
0360 00000000 00000000 00000000 00000000 ................
0370 00000000 00000000 00000000 00000000 ................
0380 00000000 00000000 00000000 00000000 ................
0390 00000000 00000000 00000000 00000000 ................
03a0 00000000 00000000 00000000 00000000 ................
03b0 00000000 00000000 00000000 00000000 ................
03c0 00000000 00000000 00000000 00000000 ................
03d0 00000000 00000000 00000000 00000000 ................
03e0 00000000 00000000 00000000 00000000 ................
03f0 00000000 00000000 00000000 00000000 ................
0400 7cbe6aa6 2c250000 408200e0 3c608c00 |.j.,%..@...<`..
0410 3800001f 38400015 38800000 3900023f 8...8@..8...9..?
0420 7c7cfba6 7c4011a6 7c8009a6 7d0001a6 ||..|@..|...}...
0430 4c00012c 39400000 654a0000 614a003f L..,9@..eJ..aJ.?
0440 3800001e 38800000 64840001 60840000 8...8...d...`...
0450 39000000 65080001 61080000 6108023f 9...e...a...a..?
0460 7d4011a6 7c8009a6 7d0001a6 4c00012c }@..|...}...L..,
0470 3c608800 3800000f 3840003f 38800000 <`..8...8@.?8...
0480 3900023f 7c7cfba6 7c4011a6 7c8009a6 9..?||..|@..|...
0490 7d0001a6 4c00012c 3800000d 38800000 }...L..,8...8...
04a0 64840001 60840000 39000000 65080001 d...`...9...e...
04b0 61080000 6108023f 7d4011a6 7c8009a6 a...a..?}@..|...
04c0 7d0001a6 4c00012c 48000004 39400000 }...L..,H...9@..
04d0 654a8002 614ab000 7d400124 4c00012c eJ..aJ..}@.$L..,
04e0 802008f0 48000020 39400000 654a8002 . ..H.. 9@..eJ..
04f0 614ab000 7d400124 4c00012c 802008f4 aJ..}@.$L..,. ..
0500 48000004 3c600000 60630900 7c6903a6 H...<`..`c..|i..
0510 7c7e6aa6 4e800421 480002e4 00000000 |~j.N..!H.......
0520 00000000 00000000 00000000 00000000 ................
0530 00000000 00000000 00000000 00000000 ................
0540 00000000 00000000 00000000 00000000 ................
0550 00000000 00000000 00000000 00000000 ................
0560 00000000 00000000 00000000 00000000 ................
0570 00000000 00000000 00000000 00000000 ................
0580 00000000 00000000 00000000 00000000 ................
0590 00000000 00000000 00000000 00000000 ................
05a0 00000000 00000000 00000000 00000000 ................
05b0 00000000 00000000 00000000 00000000 ................
05c0 00000000 00000000 00000000 00000000 ................
05d0 00000000 00000000 00000000 00000000 ................
05e0 00000000 00000000 00000000 00000000 ................
05f0 00000000 00000000 00000000 00000000 ................
0600 00000000 00000000 00000000 00000000 ................
0610 00000000 00000000 00000000 00000000 ................
0620 00000000 00000000 00000000 00000000 ................
0630 00000000 00000000 00000000 00000000 ................
0640 00000000 00000000 00000000 00000000 ................
0650 00000000 00000000 00000000 00000000 ................
0660 00000000 00000000 00000000 00000000 ................
0670 00000000 00000000 00000000 00000000 ................
0680 00000000 00000000 00000000 00000000 ................
0690 00000000 00000000 00000000 00000000 ................
06a0 00000000 00000000 00000000 00000000 ................
06b0 00000000 00000000 00000000 00000000 ................
06c0 00000000 00000000 00000000 00000000 ................
06d0 00000000 00000000 00000000 00000000 ................
06e0 00000000 00000000 00000000 00000000 ................
06f0 00000000 00000000 00000000 00000000 ................
0700 00000000 00000000 00000000 00000000 ................
0710 00000000 00000000 00000000 00000000 ................
0720 00000000 00000000 00000000 00000000 ................
0730 00000000 00000000 00000000 00000000 ................
0740 00000000 00000000 00000000 00000000 ................
0750 00000000 00000000 00000000 00000000 ................
0760 00000000 00000000 00000000 00000000 ................
0770 00000000 00000000 00000000 00000000 ................
0780 00000000 00000000 00000000 00000000 ................
0790 00000000 00000000 00000000 00000000 ................
07a0 00000000 00000000 00000000 00000000 ................
07b0 00000000 00000000 00000000 00000000 ................
07c0 00000000 00000000 00000000 00000000 ................
07d0 00000000 00000000 00000000 00000000 ................
07e0 00000000 00000000 00000000 00000000 ................
07f0 00000000 00000000 00000000 48000000 ............H...
0800 48000000 00000000 00000000 00000000 H...............
0810 00000000 00000000 00000000 00000000 ................
0820 48000000 00000000 00000000 00000000 H...............
0830 00000000 00000000 00000000 00000000 ................
0840 00000000 00000000 00000000 00000000 ................
0850 00000000 00000000 00000000 00000000 ................
0860 00000000 00000000 00000000 00000000 ................
0870 00000000 00000000 00000000 00000000 ................
0880 00000000 00000000 00000000 00000000 ................
0890 00000000 00000000 00000000 00000000 ................
08a0 00000000 00000000 00000000 00000000 ................
08b0 00000000 00000000 00000000 00000000 ................
08c0 00000000 00000000 00000000 00000000 ................
08d0 00000000 00000000 00000000 00000000 ................
08e0 00000000 00000000 00000000 00000000 ................
Contents of section .rodata:
08f0 0001fff8 0000fff8 ........
Contents of section .bios:
08f8 60000000 60000000 9421ffc0 90610038 `...`....!...a.8
0908 3d200001 81290000 9121000c 81210038 = ...)...!...!.8
0918 2c090000 4182000c 3920ffff 4800017c ,...A...9 ..H..|
0928 3d200000 81290aac 91210008 48000028 = ...)...!..H..(
0938 8121000c 39490004 9141000c 81410008 .!..9I...A...A..
0948 814a0000 91490000 81210008 39290004 .J...I...!..9)..
0958 91210008 3d200000 81290aac 81410008 .!..= ...)...A..
0968 7c0a4840 4180ffcc 3d200001 81290000 |.H@A...= ...)..
0978 91210008 48000020 3d200001 81290000 .!..H.. = ...)..
0988 39400000 91490000 81210008 39290004 9@...I...!..9)..
0998 91210008 3d200001 81290000 81410008 .!..= ...)...A..
09a8 7c0a4840 4180ffd4 3d200300 91210030 |.H@A...= ...!.0
09b8 81210030 3c800000 60840009 7c934ba6 .!.0<...`...|.K.
09c8 60000000 39200000 9121002c 8121002c `...9 ...!.,.!.,
09d8 3c800000 60840009 7c9603a6 60000000 <...`...|...`...
09e8 39200000 91210028 81210028 3c800000 9 ...!.(.!.(<...
09f8 60840009 7c9d43a6 60000000 39200000 `...|.C.`...9 ..
0a08 91210024 81210024 3c800000 60840009 .!.$.!.$<...`...
0a18 7c9c43a6 60000000 3d20fe00 91210020 |.C.`...= ...!.
0a28 81210020 3c800000 60840009 7c9053a6 .!. <...`...|.S.
0a38 60000000 7d36faa6 9121001c 8121001c `...}6...!...!..
0a48 552905ac 91210018 81210018 3c800000 U)...!...!..<...
0a58 60840009 7c96fba6 60000000 39200000 `...|...`...9 ..
0a68 91210014 81210014 3c800000 60840009 .!...!..<...`...
0a78 7c9053a6 60000000 39200000 91210010 |.S.`...9 ...!..
0a88 81210010 3c800000 60840009 7c9453a6 .!..<...`...|.S.
0a98 60000000 39200000 7d234b78 38210040 `...9 ..}#Kx8!.@
0aa8 4e800020 N..

1
dev/src/test2/test2
Unescape Escape View File

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../../sim/mem/test2
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