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https://github.com/notwa/mm
synced 2024-11-05 04:39:03 -08:00
19 lines
452 B
NASM
19 lines
452 B
NASM
dpad_control:
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// a0: number you want to control
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// a1: button state
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// v0: number after modifications
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la t1, dpad_values
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srl t0, a1, 8
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andi t0, 0xF
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add t0, t1
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lb t0, 0(t0)
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jr
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add v0, a0, t0
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dpad_values:
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// use table of values for branchless operation
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.byte 0, 1, -1, 0
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.byte -16, -4, -64, -16
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.byte +16, +64, +4, +16
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.byte 0, 1, -1, 0
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.align
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