mirror of https://github.com/PCSX2/pcsx2.git
114 lines
2.3 KiB
ArmAsm
114 lines
2.3 KiB
ArmAsm
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.set noat
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.set noreorder
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.global _start
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.global _exit
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.text
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nop
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nop
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_start:
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lui $2,%hi(_args_ptr)
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addiu $2,$2, %lo(_args_ptr)
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sw $4,($2)
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# Clear bss
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zerobss:
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lui $2,%hi(_fbss)
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lui $3,%hi(_end)
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addiu $2,$2,%lo(_fbss)
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addiu $3,$3,%lo(_end)
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loop:
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nop
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nop
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sq $0,($2)
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sltu $1,$2,$3
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bne $1,$0,loop
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addiu $2,$2,16
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# Thread
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lui $4,%hi(_gp)
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lui $5,%hi(_stack)
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lui $6,%hi(_stack_size)
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lui $7,%hi(_args)
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lui $8,%hi(_exit)
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addiu $4,$4,%lo(_gp)
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addiu $5,$5,%lo(_stack)
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addiu $6,$6,%lo(_stack_size)
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addiu $7,$7,%lo(_args)
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addiu $8,$8,%lo(_exit)
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move $28,$4
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addiu $3,$0,60
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syscall
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move $29, $2
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# Heap
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addiu $3,$0,61
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lui $4,%hi(_end)
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addiu $4,$4,%lo(_end)
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lui $5,%hi(_heap_size)
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addiu $5,$5,%lo(_heap_size)
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syscall
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nop
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# Cache
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li $3, 100
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move $4,$0
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syscall
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nop
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# Jump main
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ei
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# Check if we got args from system
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lui $2, %hi(_args)
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addiu $2, %lo(_args)
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lw $3, 0($2)
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bnez $3, _gotArgv # Started w (Load)ExecPS2
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nop
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# Check args via $a0
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lui $2,%hi(_args_ptr)
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addiu $2,$2,%lo(_args_ptr)
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lw $3,0($2)
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beqzl $3, _goMain
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addu $4, $0, $0
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addiu $2, $3, 4
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b _gotArgv
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nop
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_gotArgv:
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lw $4, ($2)
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addiu $5, $2, 4
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_goMain:
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jal main
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nop
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# Check if we got our args in $a0 again
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la $4, _args_ptr
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lw $5, 0($4)
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beqz $5, _exit
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nop
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_root:
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lw $6, 0($5)
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sw $0, 0($6)
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# Call ExitDeleteThread()
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addiu $3, $0, 36
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syscall
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nop
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_exit:
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# Exit
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# Should call Exit(retval) if not called by pukklink
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addiu $3,$0,35
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syscall
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move $4, $2
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nop
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.bss
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.align 6
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_args: .space 256+16*4+4
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.data
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_args_ptr:
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.space 4
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