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26 lines
484 B
ArmAsm
26 lines
484 B
ArmAsm
.cpu arm946e-s
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.section "fixcp15", "ax"
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.syntax unified
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.arm
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// to fix access to gba slot memory
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.global fix_cp15_asm
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.type fix_cp15_asm, %function
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fix_cp15_asm:
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mrc p15, 0, r0, c2, c0, 0
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bic r0, r0, #(1 << 3)
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mcr p15, 0, r0, c2, c0, 0
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mrc p15, 0, r0, c3, c0, 0
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bic r0, r0, #(1 << 3)
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mcr p15, 0, r0, c3, c0, 0
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mrc p15, 0, r0, c5, c0, 2
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bic r0, r0, #(0xF << 12)
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orr r0, r0, #(3 << 12)
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mcr p15, 0, r0, c5, c0, 2
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bx lr
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.balign 4
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.pool
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.end |