oot/asm/guNormalize.s

#include "ultra64/asm.h"

.set noat
.set noreorder

.section .text

.balign 32

LEAF(guNormalize)
    lwc1    $f4, ($a0)
    lwc1    $f6, ($a1)
    lwc1    $f8, ($a2)
    mul.s   $f10, $f4, $f4
    li      $t0, 0x3F800000 // 1.0f
    mul.s   $f16, $f6, $f6
    add.s   $f18, $f10, $f16
    mul.s   $f16, $f8, $f8
    add.s   $f10, $f16, $f18
    mtc1    $t0, $f18
    sqrt.s  $f16, $f10
    div.s   $f10, $f18, $f16
    mul.s   $f16, $f4, $f10
    nop
    mul.s   $f18, $f6, $f10
    nop
    mul.s   $f4, $f8, $f10
    swc1    $f16, ($a0)
    swc1    $f18, ($a1)
    jr      $ra
     swc1   $f4, ($a2)
END(guNormalize)
Improve the state of handwritten assembly files (#865) * Format all handwritten asm and document some * Use c preprocessor for constants * Fix * Fix PI_STATUS_ERROR, some label improvements * Avoid hi/lo for constants * Some more comments * Properly mark functions as functions and their sizes * Fix merge * Improvements * Review suggestions, rework procedure start/end macros to be more like libreultra * Move IPL3 symbol definitions into ipl3.s * Fix undefined_syms, add include and language guards to asm.h and fix the comment in gbi.h * Consistent hex capitalization, add some MIPS builtin defines to CC_CHECK to behave properly * Add -no-pad-sections assembler option and clean up alignment in gu files and bzero * Further suggestions and improvements * Matrix conversion function clarifications * Fix passing AVOID_UB to gcc * Suggestions * Suggestions, global interrupt mask improvements * Further suggestions, interrupt mask comments * Comments fixes, rdb.h * Switch from # comments to // comments, remove unnecesary .set gp=64 directives * Further review suggestions * Missed one 2022-04-30 23:03:22 +00:00			`#include "ultra64/asm.h"`
First proper commit. 2020-03-17 04:31:30 +00:00
Improve the state of handwritten assembly files (#865) * Format all handwritten asm and document some * Use c preprocessor for constants * Fix * Fix PI_STATUS_ERROR, some label improvements * Avoid hi/lo for constants * Some more comments * Properly mark functions as functions and their sizes * Fix merge * Improvements * Review suggestions, rework procedure start/end macros to be more like libreultra * Move IPL3 symbol definitions into ipl3.s * Fix undefined_syms, add include and language guards to asm.h and fix the comment in gbi.h * Consistent hex capitalization, add some MIPS builtin defines to CC_CHECK to behave properly * Add -no-pad-sections assembler option and clean up alignment in gu files and bzero * Further suggestions and improvements * Matrix conversion function clarifications * Fix passing AVOID_UB to gcc * Suggestions * Suggestions, global interrupt mask improvements * Further suggestions, interrupt mask comments * Comments fixes, rdb.h * Switch from # comments to // comments, remove unnecesary .set gp=64 directives * Further review suggestions * Missed one 2022-04-30 23:03:22 +00:00			`.set noat`
			`.set noreorder`
First proper commit. 2020-03-17 04:31:30 +00:00
			`.section .text`

Improve the state of handwritten assembly files (#865) * Format all handwritten asm and document some * Use c preprocessor for constants * Fix * Fix PI_STATUS_ERROR, some label improvements * Avoid hi/lo for constants * Some more comments * Properly mark functions as functions and their sizes * Fix merge * Improvements * Review suggestions, rework procedure start/end macros to be more like libreultra * Move IPL3 symbol definitions into ipl3.s * Fix undefined_syms, add include and language guards to asm.h and fix the comment in gbi.h * Consistent hex capitalization, add some MIPS builtin defines to CC_CHECK to behave properly * Add -no-pad-sections assembler option and clean up alignment in gu files and bzero * Further suggestions and improvements * Matrix conversion function clarifications * Fix passing AVOID_UB to gcc * Suggestions * Suggestions, global interrupt mask improvements * Further suggestions, interrupt mask comments * Comments fixes, rdb.h * Switch from # comments to // comments, remove unnecesary .set gp=64 directives * Further review suggestions * Missed one 2022-04-30 23:03:22 +00:00			`.balign 32`
First proper commit. 2020-03-17 04:31:30 +00:00
Improve the state of handwritten assembly files (#865) * Format all handwritten asm and document some * Use c preprocessor for constants * Fix * Fix PI_STATUS_ERROR, some label improvements * Avoid hi/lo for constants * Some more comments * Properly mark functions as functions and their sizes * Fix merge * Improvements * Review suggestions, rework procedure start/end macros to be more like libreultra * Move IPL3 symbol definitions into ipl3.s * Fix undefined_syms, add include and language guards to asm.h and fix the comment in gbi.h * Consistent hex capitalization, add some MIPS builtin defines to CC_CHECK to behave properly * Add -no-pad-sections assembler option and clean up alignment in gu files and bzero * Further suggestions and improvements * Matrix conversion function clarifications * Fix passing AVOID_UB to gcc * Suggestions * Suggestions, global interrupt mask improvements * Further suggestions, interrupt mask comments * Comments fixes, rdb.h * Switch from # comments to // comments, remove unnecesary .set gp=64 directives * Further review suggestions * Missed one 2022-04-30 23:03:22 +00:00			`LEAF(guNormalize)`
			`lwc1 $f4, ($a0)`
			`lwc1 $f6, ($a1)`
			`lwc1 $f8, ($a2)`
			`mul.s $f10, $f4, $f4`
			`li $t0, 0x3F800000 // 1.0f`
			`mul.s $f16, $f6, $f6`
			`add.s $f18, $f10, $f16`
			`mul.s $f16, $f8, $f8`
			`add.s $f10, $f16, $f18`
			`mtc1 $t0, $f18`
			`sqrt.s $f16, $f10`
			`div.s $f10, $f18, $f16`
			`mul.s $f16, $f4, $f10`
			`nop`
			`mul.s $f18, $f6, $f10`
			`nop`
			`mul.s $f4, $f8, $f10`
			`swc1 $f16, ($a0)`
			`swc1 $f18, ($a1)`
			`jr $ra`
			`swc1 $f4, ($a2)`
			`END(guNormalize)`