221 lines
4.0 KiB
NASM
221 lines
4.0 KiB
NASM
.text 0x00400000
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.globl main
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la $28, _heap_
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la $4, _true
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# was: la _true_addr, _true
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ori $3, $0, 4
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# was: ori _true_init, $0, 4
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sw $3, 0($4)
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# was: sw _true_init, 0(_true_addr)
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la $3, _false
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# was: la _false_addr, _false
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ori $4, $0, 5
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# was: ori _false_init, $0, 5
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sw $4, 0($3)
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# was: sw _false_init, 0(_false_addr)
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jal main
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_stop_:
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ori $2, $0, 10
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syscall
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# Function main
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main:
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sw $31, -4($29)
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sw $16, -8($29)
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addi $29, $29, -12
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ori $3, $0, 40
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# was: ori _size_reg_3_, $0, 40
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bgez $3, _safe_lab_4_
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# was: bgez _size_reg_3_, _safe_lab_4_
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ori $5, $0, 3
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# was: ori $5, $0, 3
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la $6, _Msg_IllegalArraySize_
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# was: la $6, _Msg_IllegalArraySize_
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j _RuntimeError_
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_safe_lab_4_:
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# dynalloc
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ori $2, $28, 0
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# was: ori _letBind_2_, $28, 0
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sll $4, $3, 2
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# was: sll _tmp_10_, _size_reg_3_, 2
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addi $4, $4, 4
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# was: addi _tmp_10_, _tmp_10_, 4
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add $28, $28, $4
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# was: add $28, $28, _tmp_10_
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sw $3, 0($2)
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# was: sw _size_reg_3_, 0(_letBind_2_)
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addi $6, $2, 4
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# was: addi _addr_reg_5_, _letBind_2_, 4
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ori $5, $0, 0
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# was: ori _i_reg_6_, $0, 0
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_loop_beg_7_:
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sub $4, $5, $3
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# was: sub _tmp_reg_9_, _i_reg_6_, _size_reg_3_
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bgez $4, _loop_end_8_
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# was: bgez _tmp_reg_9_, _loop_end_8_
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sw $5, 0($6)
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# was: sw _i_reg_6_, 0(_addr_reg_5_)
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addi $6, $6, 4
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# was: addi _addr_reg_5_, _addr_reg_5_, 4
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addi $5, $5, 1
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# was: addi _i_reg_6_, _i_reg_6_, 1
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j _loop_beg_7_
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_loop_end_8_:
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ori $4, $0, 4
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# was: ori _arr_ind_12_, $0, 4
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addi $3, $2, 4
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# was: addi _arr_reg_13_, _letBind_2_, 4
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lw $2, 0($2)
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# was: lw _size_reg_14_, 0(_letBind_2_)
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bgez $4, _safe_lab_17_
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# was: bgez _arr_ind_12_, _safe_lab_17_
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_error_lab_16_:
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ori $5, $0, 5
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# was: ori $5, $0, 5
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la $6, _Msg_IllegalIndex_
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# was: la $6, _Msg_IllegalIndex_
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j _RuntimeError_
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_safe_lab_17_:
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sub $2, $4, $2
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# was: sub _tmp_reg_15_, _arr_ind_12_, _size_reg_14_
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bgez $2, _error_lab_16_
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# was: bgez _tmp_reg_15_, _error_lab_16_
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sll $4, $4, 2
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# was: sll _arr_ind_12_, _arr_ind_12_, 2
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add $3, $3, $4
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# was: add _arr_reg_13_, _arr_reg_13_, _arr_ind_12_
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lw $16, 0($3)
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# was: lw _letBind_11_, 0(_arr_reg_13_)
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# ori _tmp_18_,_letBind_11_,0
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# ori _mainres_1_,_tmp_18_,0
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ori $2, $16, 0
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# was: ori $2, _mainres_1_, 0
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jal putint
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# was: jal putint, $2
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ori $2, $16, 0
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# was: ori $2, _mainres_1_, 0
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addi $29, $29, 12
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lw $16, -8($29)
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lw $31, -4($29)
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jr $31
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ord:
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jr $31
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chr:
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andi $2, $2, 255
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jr $31
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putint:
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addi $29, $29, -8
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sw $2, 0($29)
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sw $4, 4($29)
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ori $4, $2, 0
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ori $2, $0, 1
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syscall
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ori $2, $0, 4
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la $4, _space_
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syscall
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lw $2, 0($29)
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lw $4, 4($29)
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addi $29, $29, 8
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jr $31
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getint:
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ori $2, $0, 5
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syscall
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jr $31
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putchar:
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addi $29, $29, -8
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sw $2, 0($29)
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sw $4, 4($29)
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ori $4, $2, 0
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ori $2, $0, 11
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syscall
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ori $2, $0, 4
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la $4, _space_
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syscall
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lw $2, 0($29)
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lw $4, 4($29)
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addi $29, $29, 8
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jr $31
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getchar:
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addi $29, $29, -8
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sw $4, 0($29)
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sw $5, 4($29)
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ori $2, $0, 12
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syscall
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ori $5, $2, 0
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ori $2, $0, 4
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la $4, _cr_
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syscall
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ori $2, $5, 0
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lw $4, 0($29)
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lw $5, 4($29)
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addi $29, $29, 8
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jr $31
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putstring:
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addi $29, $29, -16
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sw $2, 0($29)
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sw $4, 4($29)
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sw $5, 8($29)
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sw $6, 12($29)
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lw $4, 0($2)
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addi $5, $2, 4
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add $6, $5, $4
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ori $2, $0, 11
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putstring_begin:
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sub $4, $5, $6
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bgez $4, putstring_done
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lb $4, 0($5)
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syscall
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addi $5, $5, 1
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j putstring_begin
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putstring_done:
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lw $2, 0($29)
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lw $4, 4($29)
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lw $5, 8($29)
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lw $6, 12($29)
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addi $29, $29, 16
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jr $31
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_RuntimeError_:
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la $4, _ErrMsg_
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ori $2, $0, 4
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syscall
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ori $4, $5, 0
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ori $2, $0, 1
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syscall
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la $4, _colon_space_
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ori $2, $0, 4
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syscall
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ori $4, $6, 0
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ori $2, $0, 4
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syscall
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la $4, _cr_
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ori $2, $0, 4
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syscall
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j _stop_
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.data
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# Fixed strings for I/O
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_ErrMsg_:
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.asciiz "Runtime error at line "
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_colon_space_:
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.asciiz ": "
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_cr_:
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.asciiz "\n"
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_space_:
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.asciiz " "
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# Message strings for specific errors
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_Msg_IllegalArraySize_:
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.asciiz "negative array size"
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_Msg_IllegalIndex_:
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.asciiz "array index out of bounds"
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_Msg_DivZero_:
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.asciiz "division by zero"
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# String Literals
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.align 2
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_true:
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.space 4
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.asciiz "true"
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.align 2
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_false:
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.space 4
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.asciiz "false"
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.align 2
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_heap_:
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.space 100000 |