PSP Hello World main.s Assembly

# Module Info
        .set push
    .section .lib.ent.top, "a", @progbits
    .align 2
    .word 0
__lib_ent_top:
    .section .lib.ent.btm, "a", @progbits
    .align 2
__lib_ent_bottom:
    .word 0
    .section .lib.stub.top, "a", @progbits
    .align 2
    .word 0
__lib_stub_top:
    .section .lib.stub.btm, "a", @progbits
    .align 2
__lib_stub_bottom:
    .word 0
        .set pop
.text
    .globl  module_info
    .section    .rodata.sceModuleInfo,"a",@progbits
    .align  4
    .type   module_info, @object
    .size   module_info, 52
module_info:
    .half   0
    .byte   0
    .byte   1
    .ascii  "HelloWorld\000"
    .space  16
    .byte   0
    .word   _gp
    .word   __lib_ent_top
    .word   __lib_ent_bottom
    .word   __lib_stub_top
    .word   __lib_stub_bottom
    .globl  sce_newlib_attribute
    .section    .sdata,"aw",@progbits
    .align  2
    .type   sce_newlib_attribute, @object
    .size   sce_newlib_attribute, 4

# Thread Attribute
sce_newlib_attribute:
    .word   -2147483648


# Main Program
.data
    main_pspDebugScreenSetXY_001:   .asciiz "Hello, World!"

.text
    .globl  main
    .type main, @function
main:
    addiu $sp, $sp, -4                  # save main $ra
    sw $ra, ($sp)

    jal setupExitCallback               # callback.h
    nop

    jal pspDebugScreenInit              # pspdebug.h
    nop

.loop0: # while loop
        jal isRunning
        nop

        bne $v0, 1, .e_loop0            # break on `isRunning() == 0`

        jal sceDisplayWaitVblankStart   # pspdisplay.h
        nop

        jal pspDebugScreenClear         # pspdebug.h
        nop

        li $a0, 0
        li $a1, 0
        jal pspDebugScreenSetXY         # pspdebug.h
        nop

        la $a0, main_pspDebugScreenSetXY_001
        jal pspDebugScreenPrintf        # pspdebug.h
        nop

        j .loop0
        nop
.e_loop0:
    jal sceKernelExitGame               # pspkernel.h
    nop

    li $v0, 0                           # return 0;
    lw $ra, ($sp)
    addiu $sp, $sp, 4                   # pop $ra from stack
    jr $ra
    nop