27,9 → 27,8 |
# |
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#include "regname.h" |
#include "main.h" |
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#define INITIAL_STACK 0x80040000 |
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.set noat |
.set noreorder |
.set nomacro |
38,8 → 37,82 |
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.global start |
start: |
lui $sp, INITIAL_STACK >> 16 |
ori $sp, $sp, INITIAL_STACK & 0xffff |
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j bootstrap |
/* Setup CPU map (on msim this code |
is executed in parallel on all CPUs, |
but it not an issue) */ |
la $a0, CPUMAP |
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sw $zero, 0($a0) |
sw $zero, 4($a0) |
sw $zero, 8($a0) |
sw $zero, 12($a0) |
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sw $zero, 16($a0) |
sw $zero, 20($a0) |
sw $zero, 24($a0) |
sw $zero, 28($a0) |
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sw $zero, 32($a0) |
sw $zero, 36($a0) |
sw $zero, 40($a0) |
sw $zero, 44($a0) |
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sw $zero, 48($a0) |
sw $zero, 52($a0) |
sw $zero, 56($a0) |
sw $zero, 60($a0) |
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sw $zero, 64($a0) |
sw $zero, 68($a0) |
sw $zero, 72($a0) |
sw $zero, 76($a0) |
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sw $zero, 80($a0) |
sw $zero, 84($a0) |
sw $zero, 88($a0) |
sw $zero, 92($a0) |
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sw $zero, 96($a0) |
sw $zero, 100($a0) |
sw $zero, 104($a0) |
sw $zero, 108($a0) |
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sw $zero, 112($a0) |
sw $zero, 116($a0) |
sw $zero, 120($a0) |
sw $zero, 124($a0) |
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lui $a1, 1 |
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#ifdef MACHINE_msim |
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/* Read dorder value */ |
la $k0, MSIM_DORDER_ADDRESS |
lw $k1, ($k0) |
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/* If we are not running on BSP |
then end in an infinite loop */ |
beq $k1, $zero, bsp |
nop |
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/* Record CPU presence */ |
sll $a2, $k1, 2 |
addu $a2, $a2, $a0 |
sw $a1, ($a2) |
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loop: |
j loop |
nop |
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#endif |
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bsp: |
/* Record CPU presence */ |
sw $a1, ($a0) |
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/* Setup initial stack */ |
la $sp, INITIAL_STACK |
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j bootstrap |
nop |