mirror of
https://github.com/Asraelite/littlebigcomputer.git
synced 2025-07-17 08:16:50 +00:00
48 lines
769 B
Text
48 lines
769 B
Text
hash_table:
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.data blablabla
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parse_line:
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li
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rw t0, 0(a0)
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srli t1, 18
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beqz end_of_line
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sub t1, t0, t1
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end_of_line:
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.char_encoding lbpc1
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get_instruction:
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a-z 0-9 () , space enter
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li x2, 0 ; cursor position in line
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listen:
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iord x0, 1, 0 ; get char from keyboard (device 1, buffer 0)
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beqz listen
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sub x1, x0, 'a'
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.eq diff 'z' - 'a'
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bleu x1, diff, okay
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sub x1, x0, '0'
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.eq diff '9' - '0'
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bleu x1, diff, okay
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beq x0, ' ', okay
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beq x0, '\n', okay
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beq x0, '(', okay
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beq x0, ')', okay
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beq x0, ',', okay
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b invalid_input
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invalid_input:
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iow 3, 1, 0o1214 ; play buzzing sound (sound card is device 3, play direct value command is 1)
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b listen
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okay:
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iow 2, 2, x0, 0 ; print character x0 (gpu is device 2, print char command is 2)
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addi x2, x2, 1 ; move cursor right
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