Commit 47446c9c authored Mar 12, 2018 by Laurent Vivier

target/m68k: implement fsincos



using floatx80_sin() and floatx80_cos()

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180312202728.23790-5-laurent@vivier.eu>

parent 68d0ed37

target/m68k/fpu_helper.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -607,3 +607,14 @@ void HELPER(fcos)(CPUM68KState env, FPReg res, FPReg *val)
		{
		res->d = floatx80_cos(val->d, &env->fp_status);
		}

		void HELPER(fsincos)(CPUM68KState env, FPReg res0, FPReg res1, FPReg val)
		{
		floatx80 a = val->d;
		/* If res0 and res1 specify the same floating-point data register,
		* the sine result is stored in the register, and the cosine
		* result is discarded.
		*/
		res1->d = floatx80_cos(a, &env->fp_status);
		res0->d = floatx80_sin(a, &env->fp_status);
		}

target/m68k/helper.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,7 @@ DEF_HELPER_3(ftentox, void, env, fp, fp)
		DEF_HELPER_3(ftan, void, env, fp, fp)
		DEF_HELPER_3(fsin, void, env, fp, fp)
		DEF_HELPER_3(fcos, void, env, fp, fp)
		DEF_HELPER_4(fsincos, void, env, fp, fp, fp)

		DEF_HELPER_3(mac_move, void, env, i32, i32)
		DEF_HELPER_3(macmulf, i64, env, i32, i32)

target/m68k/translate.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -5159,6 +5159,14 @@ DISAS_INSN(fpu)
		case 0x6c: /* fdsub */
		gen_helper_fdsub(cpu_env, cpu_dest, cpu_src, cpu_dest);
		break;
		case 0x30: case 0x31: case 0x32:
		case 0x33: case 0x34: case 0x35:
		case 0x36: case 0x37: {
		TCGv_ptr cpu_dest2 = gen_fp_ptr(REG(ext, 0));
		gen_helper_fsincos(cpu_env, cpu_dest, cpu_dest2, cpu_src);
		tcg_temp_free_ptr(cpu_dest2);
		}
		break;
		case 0x38: /* fcmp */
		gen_helper_fcmp(cpu_env, cpu_src, cpu_dest);
		return;