173 lines
4.2 KiB
ArmAsm
173 lines
4.2 KiB
ArmAsm
.section .pretext
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.global initialize
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initialize:
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sts.l pr, @-r15
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! set up TLB
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mov.l Hmem_SetMMU, r3
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mov.l address_one, r4 ! 0x8102000
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mov.l address_two, r5 ! 0x8801E000
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jsr @r3 ! _Hmem_SetMMU
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mov #108, r6
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! clear the BSS
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mov.l bbss, r4 ! start
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mov.l ebss, r5 ! end
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bra L_check_bss
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mov #0, r6
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L_zero_bss:
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mov.l r6, @r4 ! zero and advance
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add #4, r4
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L_check_bss:
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cmp/hs r5, r4
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bf L_zero_bss
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! Copy the .data
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mov.l bdata, r4 ! dest
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mov.l edata, r5 ! dest limit
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mov.l romdata, r6 ! source
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bra L_check_data
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nop
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L_copy_data:
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mov.l @r6+, r3
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mov.l r3, @r4
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add #4, r4
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L_check_data:
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cmp/hs r5, r4
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bf L_copy_data
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mov.l bbss, r4
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mov.l edata, r5
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sub r4, r5 ! size of .bss and .data sections
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add #4, r5
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mov.l bssdatasize, r4
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mov.l r5, @r4
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mov.l GLibAddinAplExecutionCheck, r2
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mov #0, r4
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mov #1, r5
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jsr @r2 ! _GLibAddinAplExecutionCheck(0,1,1);
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mov r5, r6
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mov.l CallbackAtQuitMainFunction, r3
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mov.l exit_handler, r4
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jsr @r3 ! _CallbackAtQuitMainFunction(&exit_handler)
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nop
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mov.l main, r3
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jmp @r3 ! _main()
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lds.l @r15+, pr
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_exit_handler:
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mov.l r14, @-r15
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mov.l r13, @-r15
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mov.l r12, @-r15
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sts.l pr, @-r15
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mov.l Bdel_cychdr, r14
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jsr @r14 ! _Bdel_cychdr
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mov #6, r4
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jsr @r14 ! _Bdel_cychdr
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mov #7, r4
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jsr @r14 ! _Bdel_cychdr
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mov #8, r4
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jsr @r14 ! _Bdel_cychdr
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mov #9, r4
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jsr @r14 ! _Bdel_cychdr
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mov #10, r4
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mov.l BfileFLS_CloseFile, r12
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mov #4, r14
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mov #0, r13
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L_close_files:
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jsr @r12 ! _BfileFLS_CloseFile
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mov r13, r4
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add #1, r13
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cmp/ge r14, r13
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bf L_close_files
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mov.l flsFindClose, r12
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mov #0, r13
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L_close_finds:
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jsr @r12 ! _flsFindClose
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mov r13, r4
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add #1, r13
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cmp/ge r14, r13
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bf L_close_finds
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lds.l @r15+, pr
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mov.l @r15+, r12
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mov.l @r15+, r13
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mov.l Bkey_Set_RepeatTime_Default, r2
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jmp @r2 ! _Bkey_Set_RepeatTime_Default
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mov.l @r15+, r14
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.align 4
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address_two: .long 0x8801E000
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address_one: .long 0x8102000
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Hmem_SetMMU: .long _Hmem_SetMMU
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GLibAddinAplExecutionCheck: .long _GLibAddinAplExecutionCheck
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CallbackAtQuitMainFunction: .long _CallbackAtQuitMainFunction
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Bdel_cychdr: .long _Bdel_cychdr
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BfileFLS_CloseFile: .long _BfileFLS_CloseFile
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flsFindClose: .long _flsFindClose
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Bkey_Set_RepeatTime_Default: .long _Bkey_Set_RepeatTime_Default
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bbss: .long _bbss
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ebss: .long _ebss
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edata: .long _edata
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bdata: .long _bdata
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romdata: .long _romdata
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bssdatasize: .long _bssdatasize
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exit_handler: .long _exit_handler
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main: .long _main
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_Hmem_SetMMU:
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mov.l sc_addr, r2
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mov.l 1f, r0
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jmp @r2
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nop
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1: .long 0x3FA
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_Bdel_cychdr:
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mov.l sc_addr, r2
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mov.l 1f, r0
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jmp @r2
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nop
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1: .long 0x119
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_BfileFLS_CloseFile:
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mov.l sc_addr, r2
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mov.l 1f, r0
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jmp @r2
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nop
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1: .long 0x1E7
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_Bkey_Set_RepeatTime_Default:
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mov.l sc_addr, r2
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mov.l 1f, r0
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jmp @r2
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nop
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1: .long 0x244
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_CallbackAtQuitMainFunction:
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mov.l sc_addr, r2
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mov.l 1f, r0
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jmp @r2
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nop
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1: .long 0x494
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_flsFindClose:
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mov.l sc_addr, r2
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mov.l 1f, r0
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jmp @r2
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nop
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1: .long 0x218
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_GLibAddinAplExecutionCheck:
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mov.l sc_addr, r2
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mov #0x13, r0
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jmp @r2
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nop
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sc_addr: .long 0x80010070
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.end
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