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N64: Try to disable FPU exceptions

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UnknownShadow200 2024-03-04 19:15:32 +11:00
parent dfcd025cab
commit 0b82f4f3df
1 changed files with 13 additions and 0 deletions
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13
src/Platform_N64.c
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@ -13,6 +13,7 @@
#include <stdlib.h>
#include <string.h>
#include <libdragon.h>
#include <cop1.h>
//#include <dragonfs.h>
//#include <rtc.h>
//#include <timer.h>
@ -249,9 +250,21 @@ cc_result Socket_CheckWritable(cc_socket s, cc_bool* writable) {
/*########################################################################################################################*
*--------------------------------------------------------Platform---------------------------------------------------------*
*#########################################################################################################################*/
// See src/n64sys.c
static void DisableFpuExceptions(void) {
uint32_t fcr31 = C1_FCR31();
fcr31 &= ~(C1_CAUSE_OVERFLOW | C1_CAUSE_UNDERFLOW | C1_CAUSE_NOT_IMPLEMENTED | C1_CAUSE_INEXACT_OP);
fcr31 |= C1_ENABLE_DIV_BY_0 | C1_ENABLE_INVALID_OP;
fcr31 |= C1_FCR31_FS;
C1_WRITE_FCR31(fcr31);
}
void Platform_Init(void) {
debug_init_isviewer();
debug_init_usblog();
DisableFpuExceptions();
Platform_ReadonlyFilesystem = true;
// TODO: Redesign Drawer2D to better handle this