sm64/lib/asm/guMtxF2L.s
2023-08-17 08:56:02 -04:00

47 lines
791 B
ArmAsm

.set noat
.set noreorder // don't insert nops after branches
#include "macros.inc"
.section .text, "ax"
#ifdef VERSION_CN
.balign 32
glabel guMtxF2L
li $at, 0x47800000 // 65536.000000
mtc1 $at, $f0
lui $t9, 0xffff
addiu $t8, $a1, 0x20
.L80306C70:
lwc1 $f4, ($a0)
mul.s $f6, $f4, $f0
trunc.w.s $f8, $f6
lwc1 $f10, 4($a0)
mul.s $f16, $f10, $f0
trunc.w.s $f18, $f16
mfc1 $t0, $f8
mfc1 $t1, $f18
and $t2, $t0, $t9
srl $t3, $t1, 0x10
or $t4, $t2, $t3
sw $t4, ($a1)
sll $t5, $t0, 0x10
andi $t6, $t1, 0xffff
or $t7, $t5, $t6
sw $t7, 0x20($a1)
addiu $a1, $a1, 4
bne $a1, $t8, .L80306C70
addiu $a0, $a0, 8
jr $ra
nop
nop
nop
nop
nop
#endif