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3a312e101c
* Added functions to access and manipulate the fcr31 register * Improved WiiVC emulator check to avoid false positives * Updated comments * Moved float.h to include directory
70 lines
1017 B
ArmAsm
70 lines
1017 B
ArmAsm
.include "macros.inc"
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.section .text, "ax"
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.set noreorder
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.set noat
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glabel fcr_get_rounding_mode
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cfc1 $v0, $31
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jr $ra
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andi $v0, 0x3
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glabel fcr_set_rounding_mode
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cfc1 $t0, $31
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xor $at, $t0, $a0
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andi $at, $at, 0x3
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xor $at, $at, $t0
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jr $ra
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ctc1 $at, $31
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glabel fcr_get_enabled_exceptions
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cfc1 $v0, $31
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srl $v0, $v0, 7
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jr $ra
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andi $v0, $v0, 0x1f
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glabel fcr_set_enabled_exceptions
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cfc1 $t0, $31
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sll $a0, $a0, 7
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xor $at, $t0, $a0
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andi $at, $at, 0xf80
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xor $at, $at, $t0
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jr $ra
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ctc1 $at, $31
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glabel fcr_enable_exceptions
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cfc1 $at, $31
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andi $a0, $a0, 0x1f
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sll $a0, $a0, 7
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or $at, $at, $a0
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jr $ra
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ctc1 $at, $31
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glabel fcr_disable_exceptions
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cfc1 $at, $31
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andi $a0, $a0, 0x1f
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sll $a0, $a0, 7
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or $at, $at, $a0
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subu $at, $at, $a0
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jr $ra
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ctc1 $at, $31
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glabel fcr_get_cause
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cfc1 $v0, $31
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srl $v0, $v0, 12
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jr $ra
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andi $v0, $v0, 0x3f
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glabel fcr_get_flags
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cfc1 $v0, $31
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srl $v0, $v0, 2
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jr $ra
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andi $v0, $v0, 0x1f
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glabel fcr_clear_flags
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cfc1 $t0, $31
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xor $at, $t0, $0
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andi $at, $at, 0x7c
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xor $at, $at, $t0
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jr $ra
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ctc1 $at, $31
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