Implement fsin and fcos

saiminhtet · Jan 6, 2020 · 9ae0371 · 9ae0371
1 parent 64bc899
commit 9ae0371
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Showing 4 changed files with 14 additions and 1 deletion.
diff --git a/emu/decode.h b/emu/decode.h
@@ -725,6 +725,8 @@ __no_instrument DECODER_RET glue(DECODER_NAME, OP_SIZE)(DECODER_ARGS) {
                     case 0xd972: TRACE("fsqrt"); FSQRT(); break;
                     case 0xd974: TRACE("frndint"); FRNDINT(); break;
                     case 0xd975: TRACE("fscale"); FSCALE(); break;
+                    case 0xd976: TRACE("fsin"); FSIN(); break;
+                    case 0xd977: TRACE("fcos"); FCOS(); break;
                     case 0xde31: TRACE("fcompp"); FCOM(); FPOP; FPOP; break;
                     case 0xdf40: TRACE("fnstsw ax"); FSTSW(reg_a); break;
                     default: TRACE("undefined"); UNDEFINED;

diff --git a/emu/fpu.c b/emu/fpu.c
@@ -267,6 +267,13 @@ void fpu_patan(struct cpu_state *cpu) {
     fpu_pop(cpu);
 }
 
+void fpu_sin(struct cpu_state *cpu) {
+    ST(0) = f80_from_double(sin(f80_to_double(ST(0))));
+}
+void fpu_cos(struct cpu_state *cpu) {
+    ST(0) = f80_from_double(cos(f80_to_double(ST(0))));
+}
+
 void fpu_xam(struct cpu_state *cpu) {
     float80 f = ST(0);
     int outflags = 0;

diff --git a/emu/fpu.h b/emu/fpu.h
@@ -99,6 +99,8 @@ void fpu_divm64(struct cpu_state *cpu, double *f);
 void fpu_divrm64(struct cpu_state *cpu, double *f);
 
 void fpu_patan(struct cpu_state *cpu);
+void fpu_sin(struct cpu_state *cpu);
+void fpu_cos(struct cpu_state *cpu);
 void fpu_xam(struct cpu_state *cpu);
 
 void fpu_stcw16(struct cpu_state *cpu, uint16_t *i);

diff --git a/jit/gen.c b/jit/gen.c
@@ -400,6 +400,7 @@ void helper_rdtsc(struct cpu_state *cpu);
 #define FSAVE(val,z) h_write(fpu_save, z)
 #define FRESTORE(val,z) h_write(fpu_restore, z)
 #define FPOP h(fpu_pop)
+#define FINCSTP() h(fpu_incstp)
 #define FADD(src, dst) hhh(fpu_add, src, dst)
 #define FIADD(val,z) h_read(fpu_iadd, z)
 #define FADDM(val,z) h_read(fpu_addm, z)
@@ -419,7 +420,8 @@ void helper_rdtsc(struct cpu_state *cpu);
 #define FIDIVR(val,z) h_read(fpu_idivr, z)
 #define FDIVRM(val,z) h_read(fpu_divrm, z)
 #define FPATAN() h(fpu_patan)
-#define FINCSTP() h(fpu_incstp)
+#define FSIN() h(fpu_sin)
+#define FCOS() h(fpu_cos)
 
 // vector