Function SYSCALL

pcsx2/R5900OpcodeImpl.cpp:908–1206

#include "Sifcmd.h"

void SYSCALL()
{
	u8 call;

	if (cpuRegs.GPR.n.v1.SL[0] < 0)
		call = (u8)(-cpuRegs.GPR.n.v1.SL[0]);
	else
		call = cpuRegs.GPR.n.v1.UC[0];

	BIOS_LOG("Bios call: %s (%x)", R5900::bios[call], call);


	switch (static_cast<Syscall>(call))
	{
		case Syscall::SetGsCrt:
		{
			//Function "SetGsCrt(Interlace, Mode, Field)"
			//Useful for fetching information of interlace/video/field display parameters of the Graphics Synthesizer

			gsIsInterlaced = cpuRegs.GPR.n.a0.UL[0] & 1;
			bool gsIsFrameMode = cpuRegs.GPR.n.a2.UL[0] & 1;
			const char* inter = (gsIsInterlaced) ? "Interlaced" : "Progressive";
			const char* field = (gsIsFrameMode) ? "FRAME" : "FIELD";
			std::string mode;
			// Warning info might be incorrect!
			switch (cpuRegs.GPR.n.a1.UC[0])
			{
				case 0x0:
				case 0x2:
					mode = "NTSC 640x448 @ 59.940 (59.82)"; gsSetVideoMode(GS_VideoMode::NTSC); break;

				case 0x1:
				case 0x3:
					mode = "PAL  640x512 @ 50.000 (49.76)"; gsSetVideoMode(GS_VideoMode::PAL); break;

				case 0x1A: mode = "VESA 640x480 @ 59.940"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x1B: mode = "VESA 640x480 @ 72.809"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x1C: mode = "VESA 640x480 @ 75.000"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x1D: mode = "VESA 640x480 @ 85.008"; gsSetVideoMode(GS_VideoMode::VESA); break;

				case 0x2A: mode = "VESA 800x600 @ 56.250"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x2B: mode = "VESA 800x600 @ 60.317"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x2C: mode = "VESA 800x600 @ 72.188"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x2D: mode = "VESA 800x600 @ 75.000"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x2E: mode = "VESA 800x600 @ 85.061"; gsSetVideoMode(GS_VideoMode::VESA); break;

				case 0x3B: mode = "VESA 1024x768 @ 60.004"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x3C: mode = "VESA 1024x768 @ 70.069"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x3D: mode = "VESA 1024x768 @ 75.029"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x3E: mode = "VESA 1024x768 @ 84.997"; gsSetVideoMode(GS_VideoMode::VESA); break;

				case 0x4A: mode = "VESA 1280x1024 @ 63.981"; gsSetVideoMode(GS_VideoMode::VESA); break;
				case 0x4B: mode = "VESA 1280x1024 @ 79.976"; gsSetVideoMode(GS_VideoMode::VESA); break;

				case 0x50: mode = "SDTV   720x480 @ 59.94"; gsSetVideoMode(GS_VideoMode::SDTV_480P); break;
				case 0x51: mode = "HDTV 1920x1080 @ 60.00"; gsSetVideoMode(GS_VideoMode::HDTV_1080I); break;
				case 0x52: mode = "HDTV  1280x720 @ ??.???"; gsSetVideoMode(GS_VideoMode::HDTV_720P); break;
				case 0x53: mode = "SDTV   768x576 @ ??.???"; gsSetVideoMode(GS_VideoMode::SDTV_576P); break;