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Fixed JIT FPU bugs (Starstruck demo corruption, etc.)

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This commit is contained in:
Dimitris Panokostas 2018-02-08 20:40:37 +01:00
parent 88316d7916
commit b9dc57af87
14 changed files with 1735 additions and 121 deletions
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41
src/jit/gencomp_arm.cpp
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@ -123,7 +123,8 @@
//#define DISABLE_I_FSCC
//#define DISABLE_I_MOVE16
#define DISABLE_I_DIVU // DIVU works, but we have to think about exceptions. No big performance enhancement.
//#define DISABLE_I_DIVU
//#define DISABLE_I_DIVS
#define RETURN "return 0;"
@ -1268,6 +1269,7 @@ static void gen_divu(uae_u32 opcode, struct instr *curi, char* ssize) {
genamode(curi->dmode, "dstreg", sz_word, "dst", 1, 0);
comprintf("\tint tmp=scratchie++;\n");
comprintf("\tregister_possible_exception();\n");
if (!noflags) {
comprintf("\tjff_DIVU(tmp,dst,src);\n");
comprintf("\tlive_flags();\n");
@ -1275,7 +1277,27 @@ static void gen_divu(uae_u32 opcode, struct instr *curi, char* ssize) {
comprintf("\tjnf_DIVU(tmp,dst,src);\n");
}
genastore("tmp", curi->dmode, "dstreg", curi->size, "dst");
genastore("tmp", curi->dmode, "dstreg", sz_long /*curi->size*/, "dst");
}
static void gen_divs(uae_u32 opcode, struct instr *curi, char* ssize) {
(void)opcode;
(void)ssize;
comprintf("\t dont_care_flags();\n");
genamode(curi->smode, "srcreg", sz_word, "src", 1, 0);
genamode(curi->dmode, "dstreg", sz_word, "dst", 1, 0);
comprintf("\tint tmp=scratchie++;\n");
comprintf("\tregister_possible_exception();\n");
if (!noflags) {
comprintf("\tjff_DIVS(tmp,dst,src);\n");
comprintf("\tlive_flags();\n");
}
else {
comprintf("\tjnf_DIVS(tmp,dst,src);\n");
}
genastore("tmp", curi->dmode, "dstreg", sz_long /*curi->size*/, "dst");
}
static void gen_eor(uae_u32 opcode, struct instr *curi, char* ssize) {
@ -2507,8 +2529,11 @@ gen_opcode(unsigned long int opcode) {
break;
case i_DIVS:
#ifdef DISABLE_I_DIVS
isjump;
failure;
#endif
gen_divs(opcode, curi, ssize);
break;
case i_MULU:
@ -3018,6 +3043,13 @@ generate_one_opcode(int rp, int noflags)
dmsk = 7;
next_cpu_level = -1;
if (table68k[opcode].mnemo == i_DIVU || table68k[opcode].mnemo == i_DIVS) {
comprintf("#ifndef ARMV6T2\n");
comprintf(" FAIL(1);\n");
comprintf(" " RETURN "\n");
comprintf("#else\n");
}
if (table68k[opcode].suse
&& table68k[opcode].smode != imm && table68k[opcode].smode != imm0
&& table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2
@ -3109,6 +3141,10 @@ generate_one_opcode(int rp, int noflags)
if (global_fpu) flags |= 32;
comprintf ("return 0;\n");
if (table68k[opcode].mnemo == i_DIVU || table68k[opcode].mnemo == i_DIVS) {
comprintf("#endif\n");
}
comprintf("}\n");
char name[100] = { 0 };
@ -3132,6 +3168,7 @@ generate_one_opcode(int rp, int noflags)
com_flush();
}
}
opcode_next_clev[rp] = next_cpu_level;
opcode_last_postfix[rp] = postfix;
}