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finish up missing_gcc_functions
This commit is contained in:
fig02
parent
fd2d669fbf
commit
c9357cc005
2 changed files with 122 additions and 103 deletions
2
Makefile
2
Makefile
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@ -117,7 +117,7 @@ endif
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ASFLAGS := -march=vr4300 -32 -Iinclude
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ASFLAGS := -march=vr4300 -32 -Iinclude
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ifeq ($(COMPILER),gcc)
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ifeq ($(COMPILER),gcc)
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CFLAGS += -G 0 -nostdinc $(INC) -D AVOID_UB -march=vr4300 -mfix4300 -mabi=32 -mno-abicalls -mdivide-breaks -fno-zero-initialized-in-bss -fno-toplevel-reorder -ffreestanding -fno-common -fno-merge-constants -mno-explicit-relocs -mno-split-addresses $(CHECK_WARNINGS) -funsigned-char
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CFLAGS += -G 0 -nostdinc $(INC) -DAVOID_UB -march=vr4300 -mfix4300 -mabi=32 -mno-abicalls -mdivide-breaks -fno-zero-initialized-in-bss -fno-toplevel-reorder -ffreestanding -fno-common -fno-merge-constants -mno-explicit-relocs -mno-split-addresses $(CHECK_WARNINGS) -funsigned-char
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MIPS_VERSION := -mips3
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MIPS_VERSION := -mips3
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else
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else
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# we support Microsoft extensions such as anonymous structs, which the compiler does support but warns for their usage. Surpress the warnings with -woff.
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# we support Microsoft extensions such as anonymous structs, which the compiler does support but warns for their usage. Surpress the warnings with -woff.
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@ -1,14 +1,19 @@
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/* --------------------------------------------------------------------------------*/
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/* Depending on the toolchain used, an appropriate precompiled libgcc library */
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/* may not exist and cannot be linked against. Until we have a better work around, */
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/* necessary gcc functions are hosted here in order to properly compile. */
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/* --------------------------------------------------------------------------------*/
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#ifdef __GNUC__
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#ifdef __GNUC__
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#include "global.h"
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#include "global.h"
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// Define functions needed for the GCC build here.
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// Self-hosted memcmp.
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// Self-hosted memcmp.
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int memcmp(void* s1, const void* s2, size_t n) {
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int memcmp(void* s1, const void* s2, size_t n) {
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u8* m1 = (u8*)s1;
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u8* m1 = (u8*)s1;
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u8* m2 = (u8*)s2;
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u8* m2 = (u8*)s2;
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u32 i;
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u32 i;
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for (i = 0; i < n; i++) {
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for (i = 0; i < n; i++) {
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if (m1[i] < m2[i]) {
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if (m1[i] < m2[i]) {
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return -1;
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return -1;
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@ -16,15 +21,18 @@ int memcmp(void* s1, const void* s2, size_t n) {
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return 1;
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return 1;
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}
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}
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}
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}
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return 0;
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return 0;
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}
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}
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void* memset(void* str, s32 c, size_t n) {
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void* memset(void* str, s32 c, size_t n) {
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u8* m1 = (u8*)str;
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u8* m1 = (u8*)str;
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u32 i;
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u32 i;
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for (i = 0; i < n; i++) {
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for (i = 0; i < n; i++) {
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m1[i] = c;
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m1[i] = c;
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}
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}
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return str;
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return str;
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}
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}
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@ -34,6 +42,7 @@ u32 __fixunssfdi(f32 a) {
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if (a < 0.0f) {
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if (a < 0.0f) {
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a = 0.0f;
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a = 0.0f;
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}
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}
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return (u32)a;
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return (u32)a;
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}
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}
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@ -41,6 +50,7 @@ u32 __fixunsdfdi(f64 a) {
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if (a < 0.0) {
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if (a < 0.0) {
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a = 0.0;
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a = 0.0;
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}
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}
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return (u32)a;
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return (u32)a;
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}
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}
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@ -91,105 +101,114 @@ f32 __powisf2(f32 a, s32 b) {
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return recip ? 1 / r : r;
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return recip ? 1 / r : r;
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}
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}
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unsigned long __umoddi3(unsigned long a, unsigned long b) {
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__asm__(" \n\
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__asm__(".set push;"
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.set push \n\
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".set noat;"
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.set noat \n\
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".set noreorder;"
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.set noreorder \n\
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".set gp=64;"
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.set gp=64 \n\
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"sw $a0, ($sp);"
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\n\
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"sw $a1, 4($sp);"
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.global __umoddi3 \n\
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"sw $a2, 8($sp);"
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__umoddi3: \n\
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"sw $a3, 0xc($sp);"
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.type __umoddi3, @function \n\
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"ld $t7, 8($sp);"
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.ent __umoddi3 \n\
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"ld $t6, ($sp);"
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sw $a0, ($sp) \n\
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"ddivu $zero, $t6, $t7;"
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sw $a1, 4($sp) \n\
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"bnez $t7, .L80324144;"
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sw $a2, 8($sp) \n\
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" nop;"
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sw $a3, 0xc($sp) \n\
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"break 7;"
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ld $t7, 8($sp) \n\
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".L80324144:"
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ld $t6, ($sp) \n\
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"mfhi $v0;"
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ddivu $zero, $t6, $t7 \n\
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"dsll32 $v1, $v0, 0;"
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bnez $t7, 1f \n\
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"dsra32 $v1, $v1, 0;"
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nop \n\
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"dsra32 $v0, $v0, 0;"
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break 7 \n\
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".set pop;");
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1: \n\
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}
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mfhi $v0 \n\
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dsll32 $v1, $v0, 0 \n\
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unsigned long __udivdi3(unsigned long a, unsigned long b) {
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dsra32 $v1, $v1, 0 \n\
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__asm__(".set push;"
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jr $ra \n\
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".set noat;"
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dsra32 $v0, $v0, 0 \n\
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".set noreorder;"
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.end __umoddi3 \n\
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".set gp=64;"
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.size __umoddi3, . - __umoddi3 \n\
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"sw $a0, ($sp);"
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\n\
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"sw $a1, 4($sp);"
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.global __udivdi3 \n\
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"sw $a2, 8($sp);"
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__udivdi3: \n\
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"sw $a3, 0xc($sp);"
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.type __udivdi3, @function \n\
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"ld $t7, 8($sp);"
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.ent __udivdi3 \n\
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"ld $t6, ($sp);"
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sw $a0, ($sp) \n\
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"ddivu $zero, $t6, $t7;"
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sw $a1, 4($sp) \n\
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"bnez $t7, .L80324180;"
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sw $a2, 8($sp) \n\
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" nop;"
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sw $a3, 0xc($sp) \n\
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"break 7;"
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ld $t7, 8($sp) \n\
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".L80324180:"
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ld $t6, ($sp) \n\
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"mflo $v0;"
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ddivu $zero, $t6, $t7 \n\
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"dsll32 $v1, $v0, 0;"
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bnez $t7, 1f \n\
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"dsra32 $v1, $v1, 0;"
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nop \n\
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" dsra32 $v0, $v0, 0;"
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break 7 \n\
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".set pop;");
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1: \n\
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}
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mflo $v0 \n\
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dsll32 $v1, $v0, 0 \n\
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long __moddi3(long a, long b) {
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dsra32 $v1, $v1, 0 \n\
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__asm__(".set push;"
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jr $ra \n\
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".set noat;"
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dsra32 $v0, $v0, 0 \n\
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".set noreorder;"
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.end __udivdi3 \n\
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".set gp=64;"
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.size __udivdi3, . - __udivdi3 \n\
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"sw $a0, ($sp);"
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\n\
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"sw $a1, 4($sp);"
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.global __moddi3 \n\
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"sw $a2, 8($sp);"
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__moddi3: \n\
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"sw $a3, 0xc($sp);"
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.type __moddi3, @function \n\
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"ld $t7, 8($sp);"
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.ent __moddi3 \n\
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"ld $t6, ($sp);"
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sw $a0, ($sp) \n\
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"ddivu $zero, $t6, $t7;"
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sw $a1, 4($sp) \n\
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"bnez $t7, .L803241E8;"
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sw $a2, 8($sp) \n\
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" nop;"
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sw $a3, 0xc($sp) \n\
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"break 7;"
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ld $t7, 8($sp) \n\
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".L803241E8:"
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ld $t6, ($sp) \n\
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"mfhi $v0;"
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ddivu $zero, $t6, $t7 \n\
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"dsll32 $v1, $v0, 0;"
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bnez $t7, 1f \n\
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"dsra32 $v1, $v1, 0;"
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nop \n\
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" dsra32 $v0, $v0, 0;"
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break 7 \n\
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".set pop;");
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1: \n\
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}
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mfhi $v0 \n\
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dsll32 $v1, $v0, 0 \n\
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long __divdi3(long a, long b) {
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dsra32 $v1, $v1, 0 \n\
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__asm__(".set push;"
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jr $ra \n\
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".set noat;"
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dsra32 $v0, $v0, 0 \n\
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".set noreorder;"
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.end __moddi3 \n\
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".set gp=64;"
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.size __moddi3, . - __moddi3 \n\
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"sw $a0, ($sp);"
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\n\
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"sw $a1, 4($sp);"
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.global __divdi3 \n\
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"sw $a2, 8($sp);"
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__divdi3: \n\
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"sw $a3, 0xc($sp);"
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.type __divdi3, @function \n\
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"ld $t7, 8($sp);"
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.ent __divdi3 \n\
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"ld $t6, ($sp);"
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sw $a0, ($sp) \n\
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"ddiv $zero, $t6, $t7;"
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sw $a1, 4($sp) \n\
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"nop;"
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sw $a2, 8($sp) \n\
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"bnez $t7, .L80324228;"
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sw $a3, 0xc($sp) \n\
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" nop;"
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ld $t7, 8($sp) \n\
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"break 7;"
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ld $t6, ($sp) \n\
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".L80324228:"
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ddiv $zero, $t6, $t7 \n\
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"daddiu $at, $zero, -1;"
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nop \n\
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"bne $t7, $at, .L80324244;"
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bnez $t7, 1f \n\
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" daddiu $at, $zero, 1;"
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nop \n\
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"dsll32 $at, $at, 0x1f;"
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break 7 \n\
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"bne $t6, $at, .L80324244;"
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1: \n\
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" nop;"
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daddiu $at, $zero, -1 \n\
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"break 6;"
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bne $t7, $at, 2f \n\
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".L80324244:"
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daddiu $at, $zero, 1 \n\
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"mflo $v0;"
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dsll32 $at, $at, 0x1f \n\
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"dsll32 $v1, $v0, 0;"
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bne $t6, $at, 2f \n\
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"dsra32 $v1, $v1, 0;"
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nop \n\
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" dsra32 $v0, $v0, 0;"
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break 6 \n\
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".set pop;");
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2: \n\
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}
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mflo $v0 \n\
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dsll32 $v1, $v0, 0 \n\
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dsra32 $v1, $v1, 0 \n\
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jr $ra \n\
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dsra32 $v0, $v0, 0 \n\
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.end __divdi3 \n\
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.size __divdi3, . - __divdi3 \n\
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\n\
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.set pop \n\
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\n");
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#endif
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#endif
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