2686 lines
83 KiB
C
2686 lines
83 KiB
C
/*Register allocation :
|
|
EBX, ECX, EDX - emulated registers
|
|
EAX - work register, EA storage
|
|
ESI, EDI - work registers
|
|
EBP - points at emulated register array
|
|
*/
|
|
#define HOST_REG_START 1
|
|
#define HOST_REG_END 4
|
|
static inline int find_host_reg()
|
|
{
|
|
int c;
|
|
for (c = HOST_REG_START; c < HOST_REG_END; c++)
|
|
{
|
|
if (host_reg_mapping[c] == -1)
|
|
break;
|
|
}
|
|
|
|
if (c == NR_HOST_REGS)
|
|
fatal("Out of host regs!\n");
|
|
return c;
|
|
}
|
|
|
|
static void STORE_IMM_ADDR_B(uintptr_t addr, uint8_t val)
|
|
{
|
|
addbyte(0xC6); /*MOVB [addr],val*/
|
|
addbyte(0x05);
|
|
addlong(addr);
|
|
addbyte(val);
|
|
}
|
|
static void STORE_IMM_ADDR_W(uintptr_t addr, uint16_t val)
|
|
{
|
|
addbyte(0x66); /*MOVW [addr],val*/
|
|
addbyte(0xC7);
|
|
addbyte(0x05);
|
|
addlong(addr);
|
|
addword(val);
|
|
}
|
|
static void STORE_IMM_ADDR_L(uintptr_t addr, uint32_t val)
|
|
{
|
|
addbyte(0xC7); /*MOVL [addr],val*/
|
|
addbyte(0x05);
|
|
addlong(addr);
|
|
addlong(val);
|
|
}
|
|
|
|
static void STORE_IMM_REG_B(int reg, uint8_t val)
|
|
{
|
|
addbyte(0xC6); /*MOVB [addr],val*/
|
|
addbyte(0x45);
|
|
if (reg & 4)
|
|
addbyte((uint32_t)®s[reg & 3].b.h - (uint32_t)&EAX);
|
|
else
|
|
addbyte((uint32_t)®s[reg & 3].b.l - (uint32_t)&EAX);
|
|
addbyte(val);
|
|
}
|
|
static void STORE_IMM_REG_W(int reg, uint16_t val)
|
|
{
|
|
addbyte(0x66); /*MOVW [addr],val*/
|
|
addbyte(0xC7);
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)®s[reg & 7].w - (uint32_t)&EAX);
|
|
addword(val);
|
|
}
|
|
static void STORE_IMM_REG_L(int reg, uint32_t val)
|
|
{
|
|
addbyte(0xC7); /*MOVL [addr],val*/
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)®s[reg & 7].l - (uint32_t)&EAX);
|
|
addlong(val);
|
|
}
|
|
|
|
static int LOAD_REG_B(int reg)
|
|
{
|
|
int host_reg = find_host_reg();
|
|
host_reg_mapping[host_reg] = reg;
|
|
|
|
addbyte(0x0f); /*MOVZX B[reg],host_reg*/
|
|
addbyte(0xb6);
|
|
addbyte(0x45 | (host_reg << 3));
|
|
if (reg & 4)
|
|
addbyte((uint32_t)®s[reg & 3].b.h - (uint32_t)&EAX);
|
|
else
|
|
addbyte((uint32_t)®s[reg & 3].b.l - (uint32_t)&EAX);
|
|
|
|
return host_reg;
|
|
}
|
|
static int LOAD_REG_W(int reg)
|
|
{
|
|
int host_reg = find_host_reg();
|
|
host_reg_mapping[host_reg] = reg;
|
|
|
|
addbyte(0x0f); /*MOVZX W[reg],host_reg*/
|
|
addbyte(0xb7);
|
|
addbyte(0x45 | (host_reg << 3));
|
|
addbyte((uint32_t)®s[reg & 7].w - (uint32_t)&EAX);
|
|
|
|
return host_reg;
|
|
}
|
|
static int LOAD_REG_L(int reg)
|
|
{
|
|
int host_reg = find_host_reg();
|
|
host_reg_mapping[host_reg] = reg;
|
|
|
|
addbyte(0x8b); /*MOVL host_reg,[reg]*/
|
|
addbyte(0x45 | (host_reg << 3));
|
|
addbyte((uint32_t)®s[reg & 7].l - (uint32_t)&EAX);
|
|
|
|
return host_reg;
|
|
}
|
|
|
|
static int LOAD_VAR_W(uintptr_t addr)
|
|
{
|
|
int host_reg = find_host_reg();
|
|
host_reg_mapping[host_reg] = reg;
|
|
|
|
addbyte(0x66); /*MOVL host_reg,[reg]*/
|
|
addbyte(0x8b);
|
|
addbyte(0x05 | (host_reg << 3));
|
|
addlong((uint32_t)addr);
|
|
|
|
return host_reg;
|
|
}
|
|
static int LOAD_VAR_L(uintptr_t addr)
|
|
{
|
|
int host_reg = find_host_reg();
|
|
host_reg_mapping[host_reg] = reg;
|
|
|
|
addbyte(0x8b); /*MOVL host_reg,[reg]*/
|
|
addbyte(0x05 | (host_reg << 3));
|
|
addlong((uint32_t)addr);
|
|
|
|
return host_reg;
|
|
}
|
|
|
|
static int LOAD_REG_IMM(uint32_t imm)
|
|
{
|
|
int host_reg = find_host_reg();
|
|
host_reg_mapping[host_reg] = reg;
|
|
|
|
addbyte(0xc7); /*MOVL host_reg, imm*/
|
|
addbyte(0xc0 | host_reg);
|
|
addlong(imm);
|
|
|
|
return host_reg;
|
|
}
|
|
|
|
static void STORE_REG_B_RELEASE(int host_reg)
|
|
{
|
|
addbyte(0x88); /*MOVB [reg],host_reg*/
|
|
addbyte(0x45 | (host_reg << 3));
|
|
if (host_reg_mapping[host_reg] & 4)
|
|
addbyte((uint32_t)®s[host_reg_mapping[host_reg] & 3].b.h - (uint32_t)&EAX);
|
|
else
|
|
addbyte((uint32_t)®s[host_reg_mapping[host_reg] & 3].b.l - (uint32_t)&EAX);
|
|
host_reg_mapping[host_reg] = -1;
|
|
}
|
|
static void STORE_REG_W_RELEASE(int host_reg)
|
|
{
|
|
addbyte(0x66); /*MOVW [reg],host_reg*/
|
|
addbyte(0x89);
|
|
addbyte(0x45 | (host_reg << 3));
|
|
addbyte((uint32_t)®s[host_reg_mapping[host_reg]].w - (uint32_t)&EAX);
|
|
host_reg_mapping[host_reg] = -1;
|
|
}
|
|
static void STORE_REG_L_RELEASE(int host_reg)
|
|
{
|
|
addbyte(0x89); /*MOVL [reg],host_reg*/
|
|
addbyte(0x45 | (host_reg << 3));
|
|
addbyte((uint32_t)®s[host_reg_mapping[host_reg]].l - (uint32_t)&EAX);
|
|
host_reg_mapping[host_reg] = -1;
|
|
}
|
|
|
|
static void STORE_REG_TARGET_B_RELEASE(int host_reg, int guest_reg)
|
|
{
|
|
addbyte(0x88); /*MOVB [guest_reg],host_reg*/
|
|
addbyte(0x45 | (host_reg << 3));
|
|
if (guest_reg & 4)
|
|
addbyte((uint32_t)®s[guest_reg & 3].b.h - (uint32_t)&EAX);
|
|
else
|
|
addbyte((uint32_t)®s[guest_reg & 3].b.l - (uint32_t)&EAX);
|
|
host_reg_mapping[host_reg] = -1;
|
|
}
|
|
static void STORE_REG_TARGET_W_RELEASE(int host_reg, int guest_reg)
|
|
{
|
|
addbyte(0x66); /*MOVW [guest_reg],host_reg*/
|
|
addbyte(0x89);
|
|
addbyte(0x45 | (host_reg << 3));
|
|
addbyte((uint32_t)®s[guest_reg & 7].w - (uint32_t)&EAX);
|
|
host_reg_mapping[host_reg] = -1;
|
|
}
|
|
static void STORE_REG_TARGET_L_RELEASE(int host_reg, int guest_reg)
|
|
{
|
|
addbyte(0x89); /*MOVL [guest_reg],host_reg*/
|
|
addbyte(0x45 | (host_reg << 3));
|
|
addbyte((uint32_t)®s[guest_reg & 7].l - (uint32_t)&EAX);
|
|
host_reg_mapping[host_reg] = -1;
|
|
}
|
|
|
|
static void RELEASE_REG(int host_reg)
|
|
{
|
|
host_reg_mapping[host_reg] = -1;
|
|
}
|
|
|
|
static void STORE_HOST_REG_ADDR_W(uintptr_t addr, int host_reg)
|
|
{
|
|
addbyte(0x66); /*MOVL [reg],host_reg*/
|
|
addbyte(0x89);
|
|
addbyte(0x05 | (host_reg << 3));
|
|
addlong(addr);
|
|
}
|
|
static void STORE_HOST_REG_ADDR(uintptr_t addr, int host_reg)
|
|
{
|
|
addbyte(0x89); /*MOVL [reg],host_reg*/
|
|
addbyte(0x05 | (host_reg << 3));
|
|
addlong(addr);
|
|
}
|
|
|
|
static void ADD_HOST_REG_B(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x00); /*ADDB dst_reg, src_reg*/
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void ADD_HOST_REG_W(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x66); /*ADDW dst_reg, src_reg*/
|
|
addbyte(0x01);
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void ADD_HOST_REG_L(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x01); /*ADDL dst_reg, src_reg*/
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void ADD_HOST_REG_IMM_B(int host_reg, uint8_t imm)
|
|
{
|
|
addbyte(0x80); /*ADDB host_reg, imm*/
|
|
addbyte(0xC0 | host_reg);
|
|
addbyte(imm);
|
|
}
|
|
static void ADD_HOST_REG_IMM_W(int host_reg, uint16_t imm)
|
|
{
|
|
if (imm < 0x80 || imm >= 0xff80)
|
|
{
|
|
addbyte(0x66); /*ADDW host_reg, imm*/
|
|
addbyte(0x83);
|
|
addbyte(0xC0 | host_reg);
|
|
addbyte(imm & 0xff);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x66); /*ADDW host_reg, imm*/
|
|
addbyte(0x81);
|
|
addbyte(0xC0 | host_reg);
|
|
addword(imm);
|
|
}
|
|
}
|
|
static void ADD_HOST_REG_IMM(int host_reg, uint32_t imm)
|
|
{
|
|
if (imm < 0x80 || imm >= 0xffffff80)
|
|
{
|
|
addbyte(0x83); /*ADDL host_reg, imm*/
|
|
addbyte(0xC0 | host_reg);
|
|
addbyte(imm & 0xff);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x81); /*ADDL host_reg, imm*/
|
|
addbyte(0xC0 | host_reg);
|
|
addlong(imm);
|
|
}
|
|
}
|
|
|
|
#define AND_HOST_REG_B AND_HOST_REG_L
|
|
#define AND_HOST_REG_W AND_HOST_REG_L
|
|
static void AND_HOST_REG_L(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x21); /*ANDL dst_reg, src_reg*/
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void AND_HOST_REG_IMM(int host_reg, uint32_t imm)
|
|
{
|
|
if (imm < 0x80 || imm >= 0xffffff80)
|
|
{
|
|
addbyte(0x83); /*ANDL host_reg, imm*/
|
|
addbyte(0xE0 | host_reg);
|
|
addbyte(imm & 0xff);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x81); /*ANDL host_reg, imm*/
|
|
addbyte(0xE0 | host_reg);
|
|
addlong(imm);
|
|
}
|
|
}
|
|
|
|
#define OR_HOST_REG_B OR_HOST_REG_L
|
|
#define OR_HOST_REG_W OR_HOST_REG_L
|
|
static void OR_HOST_REG_L(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x09); /*ORL dst_reg, src_reg*/
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void OR_HOST_REG_IMM(int host_reg, uint32_t imm)
|
|
{
|
|
if (imm < 0x80 || imm >= 0xffffff80)
|
|
{
|
|
addbyte(0x83); /*ORL host_reg, imm*/
|
|
addbyte(0xC8 | host_reg);
|
|
addbyte(imm & 0xff);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x81); /*ORL host_reg, imm*/
|
|
addbyte(0xC8 | host_reg);
|
|
addlong(imm);
|
|
}
|
|
}
|
|
|
|
|
|
static void SUB_HOST_REG_B(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x28); /*SUBB dst_reg, src_reg*/
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void SUB_HOST_REG_W(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x66); /*SUBW dst_reg, src_reg*/
|
|
addbyte(0x29);
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void SUB_HOST_REG_L(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x29); /*SUBL dst_reg, src_reg*/
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void SUB_HOST_REG_IMM_B(int host_reg, uint8_t imm)
|
|
{
|
|
addbyte(0x80); /*SUBB host_reg, imm*/
|
|
addbyte(0xE8 | host_reg);
|
|
addbyte(imm);
|
|
}
|
|
static void SUB_HOST_REG_IMM_W(int host_reg, uint16_t imm)
|
|
{
|
|
if (imm < 0x80 || imm >= 0xff80)
|
|
{
|
|
addbyte(0x66); /*SUBW host_reg, imm*/
|
|
addbyte(0x83);
|
|
addbyte(0xE8 | host_reg);
|
|
addbyte(imm & 0xff);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x66); /*SUBW host_reg, imm*/
|
|
addbyte(0x81);
|
|
addbyte(0xE8 | host_reg);
|
|
addword(imm);
|
|
}
|
|
}
|
|
static void SUB_HOST_REG_IMM(int host_reg, uint32_t imm)
|
|
{
|
|
if (imm < 0x80 || imm >= 0xffffff80)
|
|
{
|
|
addbyte(0x83); /*SUBL host_reg, imm*/
|
|
addbyte(0xE8 | host_reg);
|
|
addbyte(imm);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x81); /*SUBL host_reg, imm*/
|
|
addbyte(0xE8 | host_reg);
|
|
addlong(imm);
|
|
}
|
|
}
|
|
|
|
#define XOR_HOST_REG_B XOR_HOST_REG_L
|
|
#define XOR_HOST_REG_W XOR_HOST_REG_L
|
|
static void XOR_HOST_REG_L(int dst_reg, int src_reg)
|
|
{
|
|
addbyte(0x31); /*XORL dst_reg, src_reg*/
|
|
addbyte(0xc0 | dst_reg | (src_reg << 3));
|
|
}
|
|
static void XOR_HOST_REG_IMM(int host_reg, uint32_t imm)
|
|
{
|
|
if (imm < 0x80 || imm >= 0xffffff80)
|
|
{
|
|
addbyte(0x83); /*XORL host_reg, imm*/
|
|
addbyte(0xF0 | host_reg);
|
|
addbyte(imm & 0xff);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x81); /*XORL host_reg, imm*/
|
|
addbyte(0xF0 | host_reg);
|
|
addlong(imm);
|
|
}
|
|
}
|
|
|
|
static void CALL_FUNC(void *dest)
|
|
{
|
|
addbyte(0xE8); /*CALL*/
|
|
addlong(((uint8_t *)dest - (uint8_t *)(&codeblock[block_current].data[block_pos + 4])));
|
|
}
|
|
|
|
static void SHL_B_IMM(int reg, int count)
|
|
{
|
|
addbyte(0xc0); /*SHL reg, count*/
|
|
addbyte(0xc0 | reg | 0x20);
|
|
addbyte(count);
|
|
}
|
|
static void SHL_W_IMM(int reg, int count)
|
|
{
|
|
addbyte(0x66); /*SHL reg, count*/
|
|
addbyte(0xc1);
|
|
addbyte(0xc0 | reg | 0x20);
|
|
addbyte(count);
|
|
}
|
|
static void SHL_L_IMM(int reg, int count)
|
|
{
|
|
addbyte(0xc1); /*SHL reg, count*/
|
|
addbyte(0xc0 | reg | 0x20);
|
|
addbyte(count);
|
|
}
|
|
static void SHR_B_IMM(int reg, int count)
|
|
{
|
|
addbyte(0xc0); /*SHR reg, count*/
|
|
addbyte(0xc0 | reg | 0x28);
|
|
addbyte(count);
|
|
}
|
|
static void SHR_W_IMM(int reg, int count)
|
|
{
|
|
addbyte(0x66); /*SHR reg, count*/
|
|
addbyte(0xc1);
|
|
addbyte(0xc0 | reg | 0x28);
|
|
addbyte(count);
|
|
}
|
|
static void SHR_L_IMM(int reg, int count)
|
|
{
|
|
addbyte(0xc1); /*SHR reg, count*/
|
|
addbyte(0xc0 | reg | 0x28);
|
|
addbyte(count);
|
|
}
|
|
static void SAR_B_IMM(int reg, int count)
|
|
{
|
|
addbyte(0xc0); /*SAR reg, count*/
|
|
addbyte(0xc0 | reg | 0x38);
|
|
addbyte(count);
|
|
}
|
|
static void SAR_W_IMM(int reg, int count)
|
|
{
|
|
addbyte(0x66); /*SAR reg, count*/
|
|
addbyte(0xc1);
|
|
addbyte(0xc0 | reg | 0x38);
|
|
addbyte(count);
|
|
}
|
|
static void SAR_L_IMM(int reg, int count)
|
|
{
|
|
addbyte(0xc1); /*SAR reg, count*/
|
|
addbyte(0xc0 | reg | 0x38);
|
|
addbyte(count);
|
|
}
|
|
|
|
|
|
static void CHECK_SEG_READ(x86seg *seg)
|
|
{
|
|
/*Segments always valid in real/V86 mode*/
|
|
if (!(cr0 & 1) || (eflags & VM_FLAG))
|
|
return;
|
|
/*CS and SS must always be valid*/
|
|
if (seg == &_cs || seg == &_ss)
|
|
return;
|
|
if (seg->checked)
|
|
return;
|
|
|
|
addbyte(0x83); /*CMP seg->base, -1*/
|
|
addbyte(0x05|0x38);
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(-1);
|
|
addbyte(0x0f);
|
|
addbyte(0x84); /*JE end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
|
|
seg->checked = 1;
|
|
}
|
|
static void CHECK_SEG_WRITE(x86seg *seg)
|
|
{
|
|
/*Segments always valid in real/V86 mode*/
|
|
if (!(cr0 & 1) || (eflags & VM_FLAG))
|
|
return;
|
|
/*CS and SS must always be valid*/
|
|
if (seg == &_cs || seg == &_ss)
|
|
return;
|
|
if (seg->checked)
|
|
return;
|
|
|
|
addbyte(0x83); /*CMP seg->base, -1*/
|
|
addbyte(0x05|0x38);
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(-1);
|
|
addbyte(0x0f);
|
|
addbyte(0x84); /*JE end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
|
|
seg->checked = 1;
|
|
}
|
|
static void CHECK_SEG_LIMITS(x86seg *seg, int end_offset)
|
|
{
|
|
addbyte(0x3b); /*CMP EAX, seg->limit_low*/
|
|
addbyte(0x05);
|
|
addlong((uint32_t)&seg->limit_low);
|
|
addbyte(0x0f); /*JB BLOCK_GPF_OFFSET*/
|
|
addbyte(0x82);
|
|
addlong(BLOCK_GPF_OFFSET - (block_pos + 4));
|
|
if (end_offset)
|
|
{
|
|
addbyte(0x83); /*ADD EAX, end_offset*/
|
|
addbyte(0xc0);
|
|
addbyte(end_offset);
|
|
addbyte(0x3b); /*CMP EAX, seg->limit_high*/
|
|
addbyte(0x05);
|
|
addlong((uint32_t)&seg->limit_high);
|
|
addbyte(0x0f); /*JNBE BLOCK_GPF_OFFSET*/
|
|
addbyte(0x87);
|
|
addlong(BLOCK_GPF_OFFSET - (block_pos + 4));
|
|
addbyte(0x83); /*SUB EAX, end_offset*/
|
|
addbyte(0xe8);
|
|
addbyte(end_offset);
|
|
}
|
|
}
|
|
|
|
static void MEM_LOAD_ADDR_EA_B(x86seg *seg)
|
|
{
|
|
addbyte(0x8b); /*MOVL EDX, seg->base*/
|
|
addbyte(0x05 | (REG_EDX << 3));
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x89); /*MOV ESI, EDX*/
|
|
addbyte(0xd6);
|
|
addbyte(0x01); /*ADDL EDX, EAX*/
|
|
addbyte(0xc2);
|
|
addbyte(0x89); /*MOV EDI, EDX*/
|
|
addbyte(0xd7);
|
|
addbyte(0xc1); /*SHR EDX, 12*/
|
|
addbyte(0xea);
|
|
addbyte(12);
|
|
addbyte(0x8b); /*MOV EDX, readlookup2[EDX*4]*/
|
|
addbyte(0x14);
|
|
addbyte(0x95);
|
|
addlong((uint32_t)readlookup2);
|
|
addbyte(0x83); /*CMP EDX, -1*/
|
|
addbyte(0xfa);
|
|
addbyte(-1);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(4+2);
|
|
addbyte(0x0f); /*MOVZX EAX, B[EDX+EDI]*/
|
|
addbyte(0xb6);
|
|
addbyte(0x04);
|
|
addbyte(0x3a);
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(4+3+5+7+6+3);
|
|
addbyte(0x89); /*slowpath: MOV [ESP+4], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0x89); /*MOV [ESP], ESI*/
|
|
addbyte(0x34);
|
|
addbyte(0x24);
|
|
addbyte(0xe8); /*CALL readmemb386l*/
|
|
addlong((uint32_t)readmemb386l - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0x83); /*CMP abrt, 0*/
|
|
addbyte(0x3d);
|
|
addlong((uint32_t)&abrt);
|
|
addbyte(0);
|
|
addbyte(0x0f); /*JNE end*/
|
|
addbyte(0x85);
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
addbyte(0x0f); /*MOVZX EAX, AL*/
|
|
addbyte(0xb6);
|
|
addbyte(0xc0);
|
|
/*done:*/
|
|
host_reg_mapping[0] = 8;
|
|
}
|
|
static void MEM_LOAD_ADDR_EA_W(x86seg *seg)
|
|
{
|
|
addbyte(0x8b); /*MOVL EDX, seg->base*/
|
|
addbyte(0x05 | (REG_EDX << 3));
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x89); /*MOV ESI, EDX*/
|
|
addbyte(0xd6);
|
|
addbyte(0x01); /*ADDL EDX, EAX*/
|
|
addbyte(0xc2);
|
|
addbyte(0x8d); /*LEA EDI, 1[EDX]*/
|
|
addbyte(0x7a);
|
|
addbyte(0x01);
|
|
addbyte(0xc1); /*SHR EDX, 12*/
|
|
addbyte(0xea);
|
|
addbyte(12);
|
|
addbyte(0xf7); /*TEST EDI, 0xfff*/
|
|
addbyte(0xc7);
|
|
addlong(0xfff);
|
|
addbyte(0x8b); /*MOV EDX, readlookup2[EDX*4]*/
|
|
addbyte(0x14);
|
|
addbyte(0x95);
|
|
addlong((uint32_t)readlookup2);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(3+2+5+2);
|
|
addbyte(0x83); /*CMP EDX, -1*/
|
|
addbyte(0xfa);
|
|
addbyte(-1);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(5+2);
|
|
addbyte(0x0f); /*MOVZX EAX, -1[EDX+EDI]W*/
|
|
addbyte(0xb7);
|
|
addbyte(0x44);
|
|
addbyte(0x3a);
|
|
addbyte(-1);
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(4+3+5+7+6+3);
|
|
addbyte(0x89); /*slowpath: MOV [ESP+4], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0x89); /*MOV [ESP], ESI*/
|
|
addbyte(0x34);
|
|
addbyte(0x24);
|
|
addbyte(0xe8); /*CALL readmemwl*/
|
|
addlong((uint32_t)readmemwl - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0x83); /*CMP abrt, 0*/
|
|
addbyte(0x3d);
|
|
addlong((uint32_t)&abrt);
|
|
addbyte(0);
|
|
addbyte(0x0f);
|
|
addbyte(0x85); /*JNE end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
addbyte(0x0f); /*MOVZX EAX, AX*/
|
|
addbyte(0xb7);
|
|
addbyte(0xc0);
|
|
/*done:*/
|
|
host_reg_mapping[0] = 8;
|
|
}
|
|
static void MEM_LOAD_ADDR_EA_L(x86seg *seg)
|
|
{
|
|
addbyte(0x8b); /*MOVL EDX, seg->base*/
|
|
addbyte(0x05 | (REG_EDX << 3));
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x89); /*MOV ESI, EDX*/
|
|
addbyte(0xd6);
|
|
addbyte(0x01); /*ADDL EDX, EAX*/
|
|
addbyte(0xc2);
|
|
addbyte(0x8d); /*LEA EDI, 3[EDX]*/
|
|
addbyte(0x7a);
|
|
addbyte(0x03);
|
|
addbyte(0xc1); /*SHR EDX, 12*/
|
|
addbyte(0xea);
|
|
addbyte(12);
|
|
addbyte(0xf7); /*TEST EDI, 0xffc*/
|
|
addbyte(0xc7);
|
|
addlong(0xffc);
|
|
addbyte(0x8b); /*MOV EDX, readlookup2[EDX*4]*/
|
|
addbyte(0x14);
|
|
addbyte(0x95);
|
|
addlong((uint32_t)readlookup2);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(3+2+4+2);
|
|
addbyte(0x83); /*CMP EDX, -1*/
|
|
addbyte(0xfa);
|
|
addbyte(-1);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(4+2);
|
|
addbyte(0x8b); /*MOV EAX, -3[EDX+EDI]*/
|
|
addbyte(0x44);
|
|
addbyte(0x3a);
|
|
addbyte(-3);
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(4+3+5+7+6);
|
|
addbyte(0x89); /*slowpath: MOV [ESP+4], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0x89); /*MOV [ESP], ESI*/
|
|
addbyte(0x34);
|
|
addbyte(0x24);
|
|
addbyte(0xe8); /*CALL readmemll*/
|
|
addlong((uint32_t)readmemll - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0x83); /*CMP abrt, 0*/
|
|
addbyte(0x3d);
|
|
addlong((uint32_t)&abrt);
|
|
addbyte(0);
|
|
addbyte(0x0f);
|
|
addbyte(0x85); /*JNE end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
/*done:*/
|
|
host_reg_mapping[0] = 8;
|
|
}
|
|
|
|
static void MEM_LOAD_ADDR_EA_Q(x86seg *seg)
|
|
{
|
|
addbyte(0x8b); /*MOVL EDX, seg->base*/
|
|
addbyte(0x05 | (REG_EDX << 3));
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x89); /*MOV ESI, EDX*/
|
|
addbyte(0xd6);
|
|
addbyte(0x01); /*ADDL EDX, EAX*/
|
|
addbyte(0xc2);
|
|
addbyte(0x8d); /*LEA EDI, 7[EDX]*/
|
|
addbyte(0x7a);
|
|
addbyte(0x07);
|
|
addbyte(0xc1); /*SHR EDX, 12*/
|
|
addbyte(0xea);
|
|
addbyte(12);
|
|
addbyte(0xf7); /*TEST EDI, 0xff8*/
|
|
addbyte(0xc7);
|
|
addlong(0xff8);
|
|
addbyte(0x8b); /*MOV EDX, readlookup2[EDX*4]*/
|
|
addbyte(0x14);
|
|
addbyte(0x95);
|
|
addlong((uint32_t)readlookup2);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(3+2+4+4+2);
|
|
addbyte(0x83); /*CMP EDX, -1*/
|
|
addbyte(0xfa);
|
|
addbyte(-1);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(4+4+2);
|
|
addbyte(0x8b); /*MOV EAX, [EDX+EDI]*/
|
|
addbyte(0x44);
|
|
addbyte(0x3a);
|
|
addbyte(-7);
|
|
addbyte(0x8b); /*MOV EDX, [EDX+EDI+4]*/
|
|
addbyte(0x54);
|
|
addbyte(0x3a);
|
|
addbyte(-7+4);
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(4+3+5+7+6);
|
|
addbyte(0x89); /*slowpath: MOV [ESP+4], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0x89); /*MOV [ESP], ESI*/
|
|
addbyte(0x34);
|
|
addbyte(0x24);
|
|
addbyte(0xe8); /*CALL readmemql*/
|
|
addlong((uint32_t)readmemql - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0x83); /*CMP abrt, 0*/
|
|
addbyte(0x3d);
|
|
addlong((uint32_t)&abrt);
|
|
addbyte(0);
|
|
addbyte(0x0f);
|
|
addbyte(0x85); /*JNE end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
/*done:*/
|
|
host_reg_mapping[0] = 8;
|
|
}
|
|
|
|
static void MEM_LOAD_ADDR_IMM_B(x86seg *seg, uint32_t addr)
|
|
{
|
|
addbyte(0xb8); /*MOV EAX, addr*/
|
|
addlong(addr);
|
|
MEM_LOAD_ADDR_EA_B(seg);
|
|
}
|
|
static void MEM_LOAD_ADDR_IMM_W(x86seg *seg, uint32_t addr)
|
|
{
|
|
addbyte(0xb8); /*MOV EAX, addr*/
|
|
addlong(addr);
|
|
MEM_LOAD_ADDR_EA_W(seg);
|
|
}
|
|
static void MEM_LOAD_ADDR_IMM_L(x86seg *seg, uint32_t addr)
|
|
{
|
|
addbyte(0xb8); /*MOV EAX, addr*/
|
|
addlong(addr);
|
|
MEM_LOAD_ADDR_EA_L(seg);
|
|
}
|
|
|
|
static void MEM_STORE_ADDR_EA_B(x86seg *seg, int host_reg)
|
|
{
|
|
addbyte(0x8b); /*MOVL ESI, seg->base*/
|
|
addbyte(0x05 | (REG_ESI << 3));
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x01); /*ADDL ESI, EAX*/
|
|
addbyte(0xc0 | (REG_EAX << 3) | REG_ESI);
|
|
addbyte(0x89); /*MOV EDI, ESI*/
|
|
addbyte(0xc0 | (REG_ESI << 3) | REG_EDI);
|
|
addbyte(0xc1); /*SHR ESI, 12*/
|
|
addbyte(0xe8 | REG_ESI);
|
|
addbyte(12);
|
|
addbyte(0x8b); /*MOV ESI, readlookup2[ESI*4]*/
|
|
addbyte(0x04 | (REG_ESI << 3));
|
|
addbyte(0x85 | (REG_ESI << 3));
|
|
addlong((uint32_t)writelookup2);
|
|
addbyte(0x83); /*CMP ESI, -1*/
|
|
addbyte(0xf8 | REG_ESI);
|
|
addbyte(-1);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(3+2);
|
|
addbyte(0x88); /*MOV [EDI+ESI],host_reg*/
|
|
addbyte(0x04 | (host_reg << 3));
|
|
addbyte(REG_EDI | (REG_ESI << 3));
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(4+5+4+3+5+7+6);
|
|
addbyte(0x89); /*slowpath: MOV [ESP+4], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0xa1); /*MOV EAX, seg->base*/
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x89); /*MOV [ESP+8], host_reg*/
|
|
addbyte(0x44 | (host_reg << 3));
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xe8); /*CALL writememb386l*/
|
|
addlong((uint32_t)writememb386l - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0x83); /*CMP abrt, 0*/
|
|
addbyte(0x3d);
|
|
addlong((uint32_t)&abrt);
|
|
addbyte(0);
|
|
addbyte(0x0f); /*JNE end*/
|
|
addbyte(0x85);
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
/*done:*/
|
|
}
|
|
static void MEM_STORE_ADDR_EA_W(x86seg *seg, int host_reg)
|
|
{
|
|
addbyte(0x8b); /*MOVL ESI, seg->base*/
|
|
addbyte(0x05 | (REG_ESI << 3));
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x01); /*ADDL ESI, EAX*/
|
|
addbyte(0xc0 | (REG_EAX << 3) | REG_ESI);
|
|
addbyte(0x8d); /*LEA EDI, 1[ESI]*/
|
|
addbyte(0x7e);
|
|
addbyte(0x01);
|
|
addbyte(0xc1); /*SHR ESI, 12*/
|
|
addbyte(0xe8 | REG_ESI);
|
|
addbyte(12);
|
|
addbyte(0xf7); /*TEST EDI, 0xfff*/
|
|
addbyte(0xc7);
|
|
addlong(0xfff);
|
|
addbyte(0x8b); /*MOV ESI, readlookup2[ESI*4]*/
|
|
addbyte(0x04 | (REG_ESI << 3));
|
|
addbyte(0x85 | (REG_ESI << 3));
|
|
addlong((uint32_t)writelookup2);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(3+2+5+2);
|
|
addbyte(0x83); /*CMP ESI, -1*/
|
|
addbyte(0xf8 | REG_ESI);
|
|
addbyte(-1);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(5+2);
|
|
addbyte(0x66); /*MOV -1[EDI+ESI],host_reg*/
|
|
addbyte(0x89);
|
|
addbyte(0x44 | (host_reg << 3));
|
|
addbyte(REG_EDI | (REG_ESI << 3));
|
|
addbyte(-1);
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(4+5+4+3+5+7+6);
|
|
addbyte(0x89); /*slowpath: MOV [ESP+4], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0xa1); /*MOV EAX, seg->base*/
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x89); /*MOV [ESP+8], host_reg*/
|
|
addbyte(0x44 | (host_reg << 3));
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xe8); /*CALL writememwl*/
|
|
addlong((uint32_t)writememwl - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0x83); /*CMP abrt, 0*/
|
|
addbyte(0x3d);
|
|
addlong((uint32_t)&abrt);
|
|
addbyte(0);
|
|
addbyte(0x0f); /*JNE end*/
|
|
addbyte(0x85);
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
/*done:*/
|
|
}
|
|
static void MEM_STORE_ADDR_EA_L(x86seg *seg, int host_reg)
|
|
{
|
|
addbyte(0x8b); /*MOVL ESI, seg->base*/
|
|
addbyte(0x05 | (REG_ESI << 3));
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x01); /*ADDL ESI, EAX*/
|
|
addbyte(0xc0 | (REG_EAX << 3) | REG_ESI);
|
|
addbyte(0x8d); /*LEA EDI, 3[ESI]*/
|
|
addbyte(0x7e);
|
|
addbyte(0x03);
|
|
addbyte(0xc1); /*SHR ESI, 12*/
|
|
addbyte(0xe8 | REG_ESI);
|
|
addbyte(12);
|
|
addbyte(0xf7); /*TEST EDI, 0xffc*/
|
|
addbyte(0xc7);
|
|
addlong(0xffc);
|
|
addbyte(0x8b); /*MOV ESI, readlookup2[ESI*4]*/
|
|
addbyte(0x04 | (REG_ESI << 3));
|
|
addbyte(0x85 | (REG_ESI << 3));
|
|
addlong((uint32_t)writelookup2);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(3+2+4+2);
|
|
addbyte(0x83); /*CMP ESI, -1*/
|
|
addbyte(0xf8 | REG_ESI);
|
|
addbyte(-1);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(4+2);
|
|
addbyte(0x89); /*MOV -3[EDI+ESI],host_reg*/
|
|
addbyte(0x44 | (host_reg << 3));
|
|
addbyte(REG_EDI | (REG_ESI << 3));
|
|
addbyte(-3);
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(4+5+4+3+5+7+6);
|
|
addbyte(0x89); /*slowpath: MOV [ESP+4], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0xa1); /*MOV EAX, seg->base*/
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x89); /*MOV [ESP+8], host_reg*/
|
|
addbyte(0x44 | (host_reg << 3));
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xe8); /*CALL writememll*/
|
|
addlong((uint32_t)writememll - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0x83); /*CMP abrt, 0*/
|
|
addbyte(0x3d);
|
|
addlong((uint32_t)&abrt);
|
|
addbyte(0);
|
|
addbyte(0x0f); /*JNE end*/
|
|
addbyte(0x85);
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
/*done:*/
|
|
}
|
|
static void MEM_STORE_ADDR_EA_Q(x86seg *seg, int host_reg, int host_reg2)
|
|
{
|
|
addbyte(0x8b); /*MOVL ESI, seg->base*/
|
|
addbyte(0x05 | (REG_ESI << 3));
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x01); /*ADDL ESI, EAX*/
|
|
addbyte(0xc0 | (REG_EAX << 3) | REG_ESI);
|
|
addbyte(0x8d); /*LEA EDI, 7[ESI]*/
|
|
addbyte(0x7e);
|
|
addbyte(0x07);
|
|
addbyte(0xc1); /*SHR ESI, 12*/
|
|
addbyte(0xe8 | REG_ESI);
|
|
addbyte(12);
|
|
addbyte(0xf7); /*TEST EDI, 0xff8*/
|
|
addbyte(0xc7);
|
|
addlong(0xff8);
|
|
addbyte(0x8b); /*MOV ESI, readlookup2[ESI*4]*/
|
|
addbyte(0x04 | (REG_ESI << 3));
|
|
addbyte(0x85 | (REG_ESI << 3));
|
|
addlong((uint32_t)writelookup2);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(3+2+4+4+2);
|
|
addbyte(0x83); /*CMP ESI, -1*/
|
|
addbyte(0xf8 | REG_ESI);
|
|
addbyte(-1);
|
|
addbyte(0x74); /*JE slowpath*/
|
|
addbyte(4+4+2);
|
|
addbyte(0x89); /*MOV [EDI+ESI],host_reg*/
|
|
addbyte(0x44 | (host_reg << 3));
|
|
addbyte(REG_EDI | (REG_ESI << 3));
|
|
addbyte(-7);
|
|
addbyte(0x89); /*MOV [EDI+ESI+4],host_reg2*/
|
|
addbyte(0x44 | (host_reg2 << 3));
|
|
addbyte(REG_EDI | (REG_ESI << 3));
|
|
addbyte(-7+0x04);
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(4+5+4+4+3+5+7+6);
|
|
addbyte(0x89); /*slowpath: MOV [ESP+4], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0xa1); /*MOV EAX, seg->base*/
|
|
addlong((uint32_t)&seg->base);
|
|
addbyte(0x89); /*MOV [ESP+8], host_reg*/
|
|
addbyte(0x44 | (host_reg << 3));
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
addbyte(0x89); /*MOV [ESP+12], host_reg2*/
|
|
addbyte(0x44 | (host_reg2 << 3));
|
|
addbyte(0x24);
|
|
addbyte(0x0c);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xe8); /*CALL writememql*/
|
|
addlong((uint32_t)writememql - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0x83); /*CMP abrt, 0*/
|
|
addbyte(0x3d);
|
|
addlong((uint32_t)&abrt);
|
|
addbyte(0);
|
|
addbyte(0x0f); /*JNE end*/
|
|
addbyte(0x85);
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
/*done:*/
|
|
}
|
|
|
|
static void MEM_STORE_ADDR_IMM_B(x86seg *seg, uint32_t addr, int host_reg)
|
|
{
|
|
addbyte(0xb8); /*MOV EAX, addr*/
|
|
addlong(addr);
|
|
MEM_STORE_ADDR_EA_B(seg, host_reg);
|
|
}
|
|
static void MEM_STORE_ADDR_IMM_L(x86seg *seg, uint32_t addr, int host_reg)
|
|
{
|
|
addbyte(0xb8); /*MOV EAX, addr*/
|
|
addlong(addr);
|
|
MEM_STORE_ADDR_EA_L(seg, host_reg);
|
|
}
|
|
static void MEM_STORE_ADDR_IMM_W(x86seg *seg, uint32_t addr, int host_reg)
|
|
{
|
|
addbyte(0xb8); /*MOV EAX, addr*/
|
|
addlong(addr);
|
|
MEM_STORE_ADDR_EA_W(seg, host_reg);
|
|
}
|
|
|
|
|
|
static x86seg *FETCH_EA_16(x86seg *op_ea_seg, uint32_t fetchdat, int op_ssegs, uint32_t *op_pc)
|
|
{
|
|
int mod = (fetchdat >> 6) & 3;
|
|
int reg = (fetchdat >> 3) & 7;
|
|
int rm = fetchdat & 7;
|
|
if (!mod && rm == 6)
|
|
{
|
|
addbyte(0xb8); /*MOVL EAX, imm16*/
|
|
addlong((fetchdat >> 8) & 0xffff);
|
|
(*op_pc) += 2;
|
|
}
|
|
else
|
|
{
|
|
switch (mod)
|
|
{
|
|
case 0:
|
|
addbyte(0xa1); /*MOVL EAX, *mod1add[0][rm]*/
|
|
addlong((uint32_t)mod1add[0][rm]);
|
|
if (mod1add[1][rm] != &zero)
|
|
{
|
|
addbyte(0x03); /*ADDL EAX, *mod1add[1][rm]*/
|
|
addbyte(0x05);
|
|
addlong((uint32_t)mod1add[1][rm]);
|
|
}
|
|
break;
|
|
case 1:
|
|
addbyte(0xa1); /*MOVL EAX, *mod1add[0][rm]*/
|
|
addlong((uint32_t)mod1add[0][rm]);
|
|
addbyte(0x83); /*ADDL EAX, imm8*/
|
|
addbyte(0xc0 | REG_EAX);
|
|
addbyte((int8_t)(rmdat >> 8));
|
|
if (mod1add[1][rm] != &zero)
|
|
{
|
|
addbyte(0x03); /*ADDL EAX, *mod1add[1][rm]*/
|
|
addbyte(0x05);
|
|
addlong((uint32_t)mod1add[1][rm]);
|
|
}
|
|
(*op_pc)++;
|
|
break;
|
|
case 2:
|
|
addbyte(0xb8); /*MOVL EAX, imm16*/
|
|
addlong((fetchdat >> 8) & 0xffff);// pc++;
|
|
addbyte(0x03); /*ADDL EAX, *mod1add[0][rm]*/
|
|
addbyte(0x05);
|
|
addlong((uint32_t)mod1add[0][rm]);
|
|
if (mod1add[1][rm] != &zero)
|
|
{
|
|
addbyte(0x03); /*ADDL EAX, *mod1add[1][rm]*/
|
|
addbyte(0x05);
|
|
addlong((uint32_t)mod1add[1][rm]);
|
|
}
|
|
(*op_pc) += 2;
|
|
break;
|
|
}
|
|
addbyte(0x25); /*ANDL EAX, 0xffff*/
|
|
addlong(0xffff);
|
|
|
|
if (mod1seg[rm] == &ss && !op_ssegs)
|
|
op_ea_seg = &_ss;
|
|
}
|
|
return op_ea_seg;
|
|
}
|
|
|
|
static x86seg *FETCH_EA_32(x86seg *op_ea_seg, uint32_t fetchdat, int op_ssegs, uint32_t *op_pc, int stack_offset)
|
|
{
|
|
uint32_t new_eaaddr;
|
|
int mod = (fetchdat >> 6) & 3;
|
|
int reg = (fetchdat >> 3) & 7;
|
|
int rm = fetchdat & 7;
|
|
|
|
if (rm == 4)
|
|
{
|
|
uint8_t sib = fetchdat >> 8;
|
|
(*op_pc)++;
|
|
|
|
switch (mod)
|
|
{
|
|
case 0:
|
|
if ((sib & 7) == 5)
|
|
{
|
|
new_eaaddr = fastreadl(cs + (*op_pc) + 1);
|
|
addbyte(0xb8); /*MOVL EAX, imm32*/
|
|
addlong(new_eaaddr);// pc++;
|
|
(*op_pc) += 4;
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x8b); /*MOVL EAX, regs[sib&7].l*/
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)®s[sib & 7].l - (uint32_t)&EAX);
|
|
}
|
|
break;
|
|
case 1:
|
|
addbyte(0x8b); /*MOVL EAX, regs[sib&7].l*/
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)®s[sib & 7].l - (uint32_t)&EAX);
|
|
addbyte(0x83); /*ADDL EAX, imm8*/
|
|
addbyte(0xc0 | REG_EAX);
|
|
addbyte((int8_t)(rmdat >> 16));
|
|
(*op_pc)++;
|
|
break;
|
|
case 2:
|
|
new_eaaddr = fastreadl(cs + (*op_pc) + 1);
|
|
addbyte(0xb8); /*MOVL EAX, new_eaaddr*/
|
|
addlong(new_eaaddr);
|
|
addbyte(0x03); /*ADDL EAX, regs[sib&7].l*/
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)®s[sib & 7].l - (uint32_t)&EAX);
|
|
(*op_pc) += 4;
|
|
break;
|
|
}
|
|
if (stack_offset && (sib & 7) == 4 && (mod || (sib & 7) != 5)) /*ESP*/
|
|
{
|
|
if (stack_offset < 0x80 || stack_offset >= 0xffffff80)
|
|
{
|
|
addbyte(0x83);
|
|
addbyte(0xc0 | REG_EAX);
|
|
addbyte(stack_offset);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x05); /*ADDL EAX, stack_offset*/
|
|
addlong(stack_offset);
|
|
}
|
|
}
|
|
if (((sib & 7) == 4 || (mod && (sib & 7) == 5)) && !op_ssegs)
|
|
op_ea_seg = &_ss;
|
|
if (((sib >> 3) & 7) != 4)
|
|
{
|
|
switch (sib >> 6)
|
|
{
|
|
case 0:
|
|
addbyte(0x03); /*ADDL EAX, regs[sib&7].l*/
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)®s[(sib >> 3) & 7].l - (uint32_t)&EAX);
|
|
break;
|
|
case 1:
|
|
addbyte(0x8B); addbyte(0x45 | (REG_EDI << 3)); addbyte((uint32_t)®s[(sib >> 3) & 7].l - (uint32_t)&EAX); /*MOVL EDI, reg*/
|
|
addbyte(0x01); addbyte(0xc0 | REG_EAX | (REG_EDI << 3)); /*ADDL EAX, EDI*/
|
|
addbyte(0x01); addbyte(0xc0 | REG_EAX | (REG_EDI << 3)); /*ADDL EAX, EDI*/
|
|
break;
|
|
case 2:
|
|
addbyte(0x8B); addbyte(0x45 | (REG_EDI << 3)); addbyte((uint32_t)®s[(sib >> 3) & 7].l - (uint32_t)&EAX); /*MOVL EDI, reg*/
|
|
addbyte(0xC1); addbyte(0xE0 | REG_EDI); addbyte(2); /*SHL EDI, 2*/
|
|
addbyte(0x01); addbyte(0xc0 | REG_EAX | (REG_EDI << 3)); /*ADDL EAX, EDI*/
|
|
break;
|
|
case 3:
|
|
addbyte(0x8B); addbyte(0x45 | (REG_EDI << 3)); addbyte((uint32_t)®s[(sib >> 3) & 7].l - (uint32_t)&EAX); /*MOVL EDI reg*/
|
|
addbyte(0xC1); addbyte(0xE0 | REG_EDI); addbyte(3); /*SHL EDI, 3*/
|
|
addbyte(0x01); addbyte(0xc0 | REG_EAX | (REG_EDI << 3)); /*ADDL EAX, EDI*/
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!mod && rm == 5)
|
|
{
|
|
new_eaaddr = fastreadl(cs + (*op_pc) + 1);
|
|
addbyte(0xb8); /*MOVL EAX, imm32*/
|
|
addlong(new_eaaddr);
|
|
(*op_pc) += 4;
|
|
return op_ea_seg;
|
|
}
|
|
addbyte(0x8b); /*MOVL EAX, regs[rm].l*/
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)®s[rm].l - (uint32_t)&EAX);
|
|
eaaddr = regs[rm].l;
|
|
if (mod)
|
|
{
|
|
if (rm == 5 && !op_ssegs)
|
|
op_ea_seg = &_ss;
|
|
if (mod == 1)
|
|
{
|
|
addbyte(0x83); /*ADD EAX, imm8*/
|
|
addbyte(0xc0 | REG_EAX);
|
|
addbyte((int8_t)(fetchdat >> 8));
|
|
(*op_pc)++;
|
|
}
|
|
else
|
|
{
|
|
new_eaaddr = fastreadl(cs + (*op_pc) + 1);
|
|
addbyte(0x05); /*ADD EAX, imm32*/
|
|
addlong(new_eaaddr);
|
|
(*op_pc) += 4;
|
|
}
|
|
}
|
|
}
|
|
return op_ea_seg;
|
|
}
|
|
|
|
static x86seg *FETCH_EA(x86seg *op_ea_seg, uint32_t fetchdat, int op_ssegs, uint32_t *op_pc, uint32_t op_32)
|
|
{
|
|
if (op_32 & 0x200)
|
|
return FETCH_EA_32(op_ea_seg, fetchdat, op_ssegs, op_pc, 0);
|
|
return FETCH_EA_16(op_ea_seg, fetchdat, op_ssegs, op_pc);
|
|
}
|
|
|
|
|
|
static void LOAD_STACK_TO_EA(int off)
|
|
{
|
|
if (stack32)
|
|
{
|
|
addbyte(0x8b); /*MOVL EAX,[ESP]*/
|
|
addbyte(0x45 | (REG_EAX << 3));
|
|
addbyte((uint32_t)&ESP - (uint32_t)&EAX);
|
|
if (off)
|
|
{
|
|
addbyte(0x83); /*ADD EAX, off*/
|
|
addbyte(0xc0 | (0 << 3) | REG_EAX);
|
|
addbyte(off);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x0f); /*MOVZX EAX,W[ESP]*/
|
|
addbyte(0xb7);
|
|
addbyte(0x45 | (REG_EAX << 3));
|
|
addbyte((uint32_t)&ESP - (uint32_t)&EAX);
|
|
if (off)
|
|
{
|
|
addbyte(0x66); /*ADD AX, off*/
|
|
addbyte(0x05);
|
|
addword(off);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void LOAD_EBP_TO_EA(int off)
|
|
{
|
|
if (stack32)
|
|
{
|
|
addbyte(0x8b); /*MOVL EAX,[EBP]*/
|
|
addbyte(0x45 | (REG_EAX << 3));
|
|
addbyte((uint32_t)&EBP - (uint32_t)&EAX);
|
|
if (off)
|
|
{
|
|
addbyte(0x83); /*ADD EAX, off*/
|
|
addbyte(0xc0 | (0 << 3) | REG_EAX);
|
|
addbyte(off);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x0f); /*MOVZX EAX,W[EBP]*/
|
|
addbyte(0xb7);
|
|
addbyte(0x45 | (REG_EAX << 3));
|
|
addbyte((uint32_t)&EBP - (uint32_t)&EAX);
|
|
if (off)
|
|
{
|
|
addbyte(0x66); /*ADD AX, off*/
|
|
addbyte(0x05);
|
|
addword(off);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void SP_MODIFY(int off)
|
|
{
|
|
if (stack32)
|
|
{
|
|
if (off < 0x80)
|
|
{
|
|
addbyte(0x83); /*ADD [ESP], off*/
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)&ESP - (uint32_t)&EAX);
|
|
addbyte(off);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x81); /*ADD [ESP], off*/
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)&ESP - (uint32_t)&EAX);
|
|
addlong(off);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (off < 0x80)
|
|
{
|
|
addbyte(0x66); /*ADD [SP], off*/
|
|
addbyte(0x83);
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)&SP - (uint32_t)&EAX);
|
|
addbyte(off);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x66); /*ADD [SP], off*/
|
|
addbyte(0x81);
|
|
addbyte(0x45);
|
|
addbyte((uint32_t)&SP - (uint32_t)&EAX);
|
|
addword(off);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void TEST_ZERO_JUMP_W(int host_reg, uint32_t new_pc, int taken_cycles)
|
|
{
|
|
addbyte(0x66); /*CMPW host_reg, 0*/
|
|
addbyte(0x83);
|
|
addbyte(0xc0 | 0x38 | host_reg);
|
|
addbyte(0);
|
|
addbyte(0x75); /*JNZ +*/
|
|
addbyte(10+5+(taken_cycles ? 7 : 0));
|
|
addbyte(0xC7); /*MOVL [pc], new_pc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&pc);
|
|
addlong(new_pc);
|
|
if (taken_cycles)
|
|
{
|
|
addbyte(0x83); /*SUB $codegen_block_cycles, cyclcs*/
|
|
addbyte(0x2d);
|
|
addlong((uintptr_t)&cycles);
|
|
addbyte(taken_cycles);
|
|
}
|
|
addbyte(0xe9); /*JMP end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
}
|
|
static void TEST_ZERO_JUMP_L(int host_reg, uint32_t new_pc, int taken_cycles)
|
|
{
|
|
addbyte(0x83); /*CMPW host_reg, 0*/
|
|
addbyte(0xc0 | 0x38 | host_reg);
|
|
addbyte(0);
|
|
addbyte(0x75); /*JNZ +*/
|
|
addbyte(10+5+(taken_cycles ? 7 : 0));
|
|
addbyte(0xC7); /*MOVL [pc], new_pc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&pc);
|
|
addlong(new_pc);
|
|
if (taken_cycles)
|
|
{
|
|
addbyte(0x83); /*SUB $codegen_block_cycles, cyclcs*/
|
|
addbyte(0x2d);
|
|
addlong((uintptr_t)&cycles);
|
|
addbyte(taken_cycles);
|
|
}
|
|
addbyte(0xe9); /*JMP end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
}
|
|
|
|
static void TEST_NONZERO_JUMP_W(int host_reg, uint32_t new_pc, int taken_cycles)
|
|
{
|
|
addbyte(0x66); /*CMPW host_reg, 0*/
|
|
addbyte(0x83);
|
|
addbyte(0xc0 | 0x38 | host_reg);
|
|
addbyte(0);
|
|
addbyte(0x74); /*JZ +*/
|
|
addbyte(10+5+(taken_cycles ? 7 : 0));
|
|
addbyte(0xC7); /*MOVL [pc], new_pc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&pc);
|
|
addlong(new_pc);
|
|
if (taken_cycles)
|
|
{
|
|
addbyte(0x83); /*SUB $codegen_block_cycles, cyclcs*/
|
|
addbyte(0x2d);
|
|
addlong((uintptr_t)&cycles);
|
|
addbyte(taken_cycles);
|
|
}
|
|
addbyte(0xe9); /*JMP end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
}
|
|
static void TEST_NONZERO_JUMP_L(int host_reg, uint32_t new_pc, int taken_cycles)
|
|
{
|
|
addbyte(0x83); /*CMPW host_reg, 0*/
|
|
addbyte(0xc0 | 0x38 | host_reg);
|
|
addbyte(0);
|
|
addbyte(0x74); /*JZ +*/
|
|
addbyte(10+5+(taken_cycles ? 7 : 0));
|
|
addbyte(0xC7); /*MOVL [pc], new_pc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&pc);
|
|
addlong(new_pc);
|
|
if (taken_cycles)
|
|
{
|
|
addbyte(0x83); /*SUB $codegen_block_cycles, cyclcs*/
|
|
addbyte(0x2d);
|
|
addlong((uintptr_t)&cycles);
|
|
addbyte(taken_cycles);
|
|
}
|
|
addbyte(0xe9); /*JMP end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
}
|
|
|
|
static int BRANCH_COND_BE(int pc_offset, uint32_t op_pc, uint32_t offset, int not)
|
|
{
|
|
if (codegen_flags_changed && flags_op != FLAGS_UNKNOWN)
|
|
{
|
|
addbyte(0x83); /*CMP flags_res, 0*/
|
|
addbyte(0x05 | 0x38);
|
|
addlong((uintptr_t)&flags_res);
|
|
addbyte(0);
|
|
addbyte(0x74); /*JZ +*/
|
|
}
|
|
else
|
|
{
|
|
CALL_FUNC(ZF_SET);
|
|
addbyte(0x85); /*TEST EAX,EAX*/
|
|
addbyte(0xc0);
|
|
addbyte(0x75); /*JNZ +*/
|
|
}
|
|
if (not)
|
|
addbyte(5+2+2+10+5+(timing_bt ? 7 : 0));
|
|
else
|
|
addbyte(5+2+2);
|
|
CALL_FUNC(CF_SET);
|
|
addbyte(0x85); /*TEST EAX,EAX*/
|
|
addbyte(0xc0);
|
|
if (not)
|
|
addbyte(0x75); /*JNZ +*/
|
|
else
|
|
addbyte(0x74); /*JZ +*/
|
|
addbyte(10+5+(timing_bt ? 7 : 0));
|
|
addbyte(0xC7); /*MOVL [pc], new_pc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&pc);
|
|
addlong(op_pc+pc_offset+offset);
|
|
if (timing_bt)
|
|
{
|
|
addbyte(0x83); /*SUB $codegen_block_cycles, cyclcs*/
|
|
addbyte(0x2d);
|
|
addlong((uintptr_t)&cycles);
|
|
addbyte(timing_bt);
|
|
}
|
|
addbyte(0xe9); /*JMP end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
}
|
|
|
|
static int BRANCH_COND_L(int pc_offset, uint32_t op_pc, uint32_t offset, int not)
|
|
{
|
|
CALL_FUNC(NF_SET);
|
|
addbyte(0x85); /*TEST EAX,EAX*/
|
|
addbyte(0xc0);
|
|
addbyte(0x0f); /*SETNE BL*/
|
|
addbyte(0x95);
|
|
addbyte(0xc3);
|
|
CALL_FUNC(VF_SET);
|
|
addbyte(0x85); /*TEST EAX,EAX*/
|
|
addbyte(0xc0);
|
|
addbyte(0x0f); /*SETNE AL*/
|
|
addbyte(0x95);
|
|
addbyte(0xc0);
|
|
addbyte(0x38); /*CMP AL, BL*/
|
|
addbyte(0xd8);
|
|
if (not)
|
|
addbyte(0x75); /*JNZ +*/
|
|
else
|
|
addbyte(0x74); /*JZ +*/
|
|
addbyte(10+5+(timing_bt ? 7 : 0));
|
|
addbyte(0xC7); /*MOVL [pc], new_pc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&pc);
|
|
addlong(op_pc+pc_offset+offset);
|
|
if (timing_bt)
|
|
{
|
|
addbyte(0x83); /*SUB $codegen_block_cycles, cyclcs*/
|
|
addbyte(0x2d);
|
|
addlong((uintptr_t)&cycles);
|
|
addbyte(timing_bt);
|
|
}
|
|
addbyte(0xe9); /*JMP end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
}
|
|
|
|
static int BRANCH_COND_LE(int pc_offset, uint32_t op_pc, uint32_t offset, int not)
|
|
{
|
|
if (codegen_flags_changed && flags_op != FLAGS_UNKNOWN)
|
|
{
|
|
addbyte(0x83); /*CMP flags_res, 0*/
|
|
addbyte(0x05 | 0x38);
|
|
addlong((uintptr_t)&flags_res);
|
|
addbyte(0);
|
|
addbyte(0x74); /*JZ +*/
|
|
}
|
|
else
|
|
{
|
|
CALL_FUNC(ZF_SET);
|
|
addbyte(0x85); /*TEST EAX,EAX*/
|
|
addbyte(0xc0);
|
|
addbyte(0x75); /*JNZ +*/
|
|
}
|
|
if (not)
|
|
addbyte(5+2+3+5+2+3+2+2+10+5+(timing_bt ? 7 : 0));
|
|
else
|
|
addbyte(5+2+3+5+2+3+2+2);
|
|
|
|
CALL_FUNC(NF_SET);
|
|
addbyte(0x85); /*TEST EAX,EAX*/
|
|
addbyte(0xc0);
|
|
addbyte(0x0f); /*SETNE BL*/
|
|
addbyte(0x95);
|
|
addbyte(0xc3);
|
|
CALL_FUNC(VF_SET);
|
|
addbyte(0x85); /*TEST EAX,EAX*/
|
|
addbyte(0xc0);
|
|
addbyte(0x0f); /*SETNE AL*/
|
|
addbyte(0x95);
|
|
addbyte(0xc0);
|
|
addbyte(0x38); /*CMP AL, BL*/
|
|
addbyte(0xd8);
|
|
if (not)
|
|
addbyte(0x75); /*JNZ +*/
|
|
else
|
|
addbyte(0x74); /*JZ +*/
|
|
addbyte(10+5+(timing_bt ? 7 : 0));
|
|
addbyte(0xC7); /*MOVL [pc], new_pc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&pc);
|
|
addlong(op_pc+pc_offset+offset);
|
|
if (timing_bt)
|
|
{
|
|
addbyte(0x83); /*SUB $codegen_block_cycles, cyclcs*/
|
|
addbyte(0x2d);
|
|
addlong((uintptr_t)&cycles);
|
|
addbyte(timing_bt);
|
|
}
|
|
addbyte(0xe9); /*JMP end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
}
|
|
|
|
|
|
static void FP_ENTER()
|
|
{
|
|
if (codegen_fpu_entered)
|
|
return;
|
|
|
|
addbyte(0xf6); /*TEST cr0, 0xc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&cr0);
|
|
addbyte(0xc);
|
|
addbyte(0x74); /*JZ +*/
|
|
addbyte(10+7+5+5);
|
|
addbyte(0xC7); /*MOVL [oldpc],op_old_pc*/
|
|
addbyte(0x05);
|
|
addlong((uintptr_t)&oldpc);
|
|
addlong(op_old_pc);
|
|
addbyte(0xc7); /*MOV [ESP], 7*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addlong(7);
|
|
addbyte(0xe8); /*CALL x86_int*/
|
|
addlong((uint32_t)x86_int - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
|
|
addbyte(0xe9); /*JMP end*/
|
|
addlong(BLOCK_EXIT_OFFSET - (block_pos + 4));
|
|
|
|
codegen_fpu_entered = 1;
|
|
}
|
|
|
|
static void FP_FLD(int reg)
|
|
{
|
|
addbyte(0xa1); /*MOV EAX, [TOP]*/
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV EBX, EAX*/
|
|
addbyte(0xc3);
|
|
if (reg)
|
|
{
|
|
addbyte(0x83); /*ADD EAX, reg*/
|
|
addbyte(0xc0);
|
|
addbyte(reg);
|
|
addbyte(0x83); /*SUB EBX, 1*/
|
|
addbyte(0xeb);
|
|
addbyte(0x01);
|
|
addbyte(0x83); /*AND EAX, 7*/
|
|
addbyte(0xe0);
|
|
addbyte(0x07);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0x83); /*SUB EBX, 1*/
|
|
addbyte(0xeb);
|
|
addbyte(0x01);
|
|
}
|
|
|
|
addbyte(0xdd); /*FLD [ST+EAX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xc5);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(0x07);
|
|
addbyte(0x8b); /*MOV EDX, [ST_i64+EAX]*/
|
|
addbyte(0x14);
|
|
addbyte(0xc5);
|
|
addlong((uintptr_t)ST_i64);
|
|
addbyte(0x8b); /*MOV ECX, [ST_i64+4+EAX]*/
|
|
addbyte(0x0c);
|
|
addbyte(0xc5);
|
|
addlong(((uintptr_t)ST_i64) + 4);
|
|
addbyte(0x8a); /*MOV AL, [tag+EAX]*/
|
|
addbyte(0x80);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x88); /*MOV [tag+EBX], AL*/
|
|
addbyte(0x83);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(0x89); /*MOV [ST_i64+EBX], EDX*/
|
|
addbyte(0x14);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST_i64);
|
|
addbyte(0x89); /*MOV [ST_i64+EBX+4], ECX*/
|
|
addbyte(0x0c);
|
|
addbyte(0xdd);
|
|
addlong(((uintptr_t)ST_i64) + 4);
|
|
|
|
addbyte(0x89); /*MOV [TOP], EBX*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
}
|
|
|
|
static void FP_FST(int reg)
|
|
{
|
|
addbyte(0xa1); /*MOV EAX, [TOP]*/
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0xdd); /*FLD [ST+EAX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xc5);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x88); /*MOV BL, [tag+EAX]*/
|
|
addbyte(0x98);
|
|
addlong((uintptr_t)tag);
|
|
|
|
if (reg)
|
|
{
|
|
addbyte(0x83); /*ADD EAX, reg*/
|
|
addbyte(0xc0);
|
|
addbyte(reg);
|
|
addbyte(0x83); /*AND EAX, 7*/
|
|
addbyte(0xe0);
|
|
addbyte(0x07);
|
|
}
|
|
|
|
addbyte(0xdd); /*FSTP [ST+EAX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xc5);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x8a); /*MOV [tag+EAX], BL*/
|
|
addbyte(0x98);
|
|
addlong((uintptr_t)tag);
|
|
}
|
|
|
|
static void FP_FXCH(int reg)
|
|
{
|
|
addbyte(0xa1); /*MOV EAX, [TOP]*/
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV EBX, EAX*/
|
|
addbyte(0xc3);
|
|
addbyte(0x83); /*ADD EAX, reg*/
|
|
addbyte(0xc0);
|
|
addbyte(reg);
|
|
//#if 0
|
|
addbyte(0xdd); /*FLD [ST+EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x83); /*AND EAX, 7*/
|
|
addbyte(0xe0);
|
|
addbyte(0x07);
|
|
addbyte(0xdd); /*FLD [ST+EAX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xc5);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0xdd); /*FSTP [ST+EAX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xc5);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0xbe); /*MOVL ESI, tag*/
|
|
addlong((uintptr_t)tag);
|
|
addbyte(0x8a); /*MOV CL, tag[EAX]*/
|
|
addbyte(0x0c);
|
|
addbyte(0x06);
|
|
addbyte(0x8a); /*MOV DL, tag[EBX]*/
|
|
addbyte(0x14);
|
|
addbyte(0x1e);
|
|
addbyte(0x88); /*MOV tag[EBX], CL*/
|
|
addbyte(0x0c);
|
|
addbyte(0x1e);
|
|
addbyte(0x88); /*MOV tag[EAX], DL*/
|
|
addbyte(0x14);
|
|
addbyte(0x06);
|
|
addbyte(0xbe); /*MOVL ESI, ST_int64*/
|
|
addlong((uintptr_t)ST_i64);
|
|
addbyte(0x8b); /*MOV ECX, ST_int64[EAX*8]*/
|
|
addbyte(0x0c);
|
|
addbyte(0xc6);
|
|
addbyte(0x8b); /*MOV EDX, ST_int64[EBX*8]*/
|
|
addbyte(0x14);
|
|
addbyte(0xde);
|
|
addbyte(0x89); /*MOV ST_int64[EBX*8], ECX*/
|
|
addbyte(0x0c);
|
|
addbyte(0xde);
|
|
addbyte(0x89); /*MOV ST_int64[EAX*8], EDX*/
|
|
addbyte(0x14);
|
|
addbyte(0xc6);
|
|
addbyte(0x8b); /*MOV ECX, ST_int64[EAX*8]+4*/
|
|
addbyte(0x4c);
|
|
addbyte(0xc6);
|
|
addbyte(0x04);
|
|
addbyte(0x8b); /*MOV EDX, ST_int64[EBX*8]+4*/
|
|
addbyte(0x54);
|
|
addbyte(0xde);
|
|
addbyte(0x04);
|
|
addbyte(0x89); /*MOV ST_int64[EBX*8]+4, ECX*/
|
|
addbyte(0x4c);
|
|
addbyte(0xde);
|
|
addbyte(0x04);
|
|
addbyte(0x89); /*MOV ST_int64[EAX*8]+4, EDX*/
|
|
addbyte(0x54);
|
|
addbyte(0xc6);
|
|
addbyte(0x04);
|
|
reg = reg;
|
|
//#endif
|
|
#if 0
|
|
addbyte(0xbe); /*MOVL ESI, ST*/
|
|
addlong((uintptr_t)ST);
|
|
|
|
addbyte(0x8b); /*MOVL EDX, [ESI+EBX*8]*/
|
|
addbyte(0x14);
|
|
addbyte(0xde);
|
|
addbyte(0x83); /*AND EAX, 7*/
|
|
addbyte(0xe0);
|
|
addbyte(0x07);
|
|
addbyte(0x8b); /*MOVL ECX, [ESI+EAX*8]*/
|
|
addbyte(0x0c);
|
|
addbyte(0xc6);
|
|
addbyte(0x89); /*MOVL [ESI+EBX*8], ECX*/
|
|
addbyte(0x0c);
|
|
addbyte(0xde);
|
|
addbyte(0x89); /*MOVL [ESI+EAX*8], EDX*/
|
|
addbyte(0x14);
|
|
addbyte(0xc6);
|
|
|
|
addbyte(0x8b); /*MOVL ECX, [4+ESI+EAX*8]*/
|
|
addbyte(0x4c);
|
|
addbyte(0xc6);
|
|
addbyte(0x04);
|
|
addbyte(0x8b); /*MOVL EDX, [4+ESI+EBX*8]*/
|
|
addbyte(0x54);
|
|
addbyte(0xde);
|
|
addbyte(0x04);
|
|
addbyte(0x89); /*MOVL [4+ESI+EBX*8], ECX*/
|
|
addbyte(0x4c);
|
|
addbyte(0xde);
|
|
addbyte(0x04);
|
|
addbyte(0x89); /*MOVL [4+ESI+EAX*8], EDX*/
|
|
addbyte(0x54);
|
|
addbyte(0xc6);
|
|
addbyte(0x04);
|
|
#endif
|
|
}
|
|
|
|
|
|
static void FP_LOAD_S()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x83); /*SUB EBX, 1*/
|
|
addbyte(0xeb);
|
|
addbyte(1);
|
|
addbyte(0xd9); /*FLD [ESP]*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
addbyte(0x83); /*CMP EAX, 0*/
|
|
addbyte(0xf8);
|
|
addbyte(0);
|
|
addbyte(0x89); /*MOV TOP, EBX*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x0f); /*SETE [tag+EBX]*/
|
|
addbyte(0x94);
|
|
addbyte(0x83);
|
|
addlong((uintptr_t)tag);
|
|
}
|
|
static void FP_LOAD_D()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x89); /*MOV [ESP+4], EDX*/
|
|
addbyte(0x54);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0x83); /*SUB EBX, 1*/
|
|
addbyte(0xeb);
|
|
addbyte(1);
|
|
addbyte(0x09); /*OR EAX, EDX*/
|
|
addbyte(0xd0);
|
|
addbyte(0xdd); /*FLD [ESP]*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
addbyte(0x83); /*CMP EAX, 0*/
|
|
addbyte(0xf8);
|
|
addbyte(0);
|
|
addbyte(0x89); /*MOV TOP, EBX*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x0f); /*SETE [tag+EBX]*/
|
|
addbyte(0x94);
|
|
addbyte(0x83);
|
|
addlong((uintptr_t)tag);
|
|
}
|
|
static void FP_LOAD_IW()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x83); /*SUB EBX, 1*/
|
|
addbyte(0xeb);
|
|
addbyte(1);
|
|
addbyte(0xdf); /*FILDw [ESP]*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
addbyte(0x83); /*CMP EAX, 0*/
|
|
addbyte(0xf8);
|
|
addbyte(0);
|
|
addbyte(0x89); /*MOV TOP, EBX*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x0f); /*SETE [tag+EBX]*/
|
|
addbyte(0x94);
|
|
addbyte(0x83);
|
|
addlong((uintptr_t)tag);
|
|
}
|
|
static void FP_LOAD_IL()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x83); /*SUB EBX, 1*/
|
|
addbyte(0xeb);
|
|
addbyte(1);
|
|
addbyte(0xdb); /*FILDl [ESP]*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
addbyte(0x83); /*CMP EAX, 0*/
|
|
addbyte(0xf8);
|
|
addbyte(0);
|
|
addbyte(0x89); /*MOV TOP, EBX*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x0f); /*SETE [tag+EBX]*/
|
|
addbyte(0x94);
|
|
addbyte(0x83);
|
|
addlong((uintptr_t)tag);
|
|
}
|
|
static void FP_LOAD_IQ()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x83); /*SUB EBX, 1*/
|
|
addbyte(0xeb);
|
|
addbyte(1);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
addbyte(0x89); /*MOV [ST_i64+EBX*8], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uint32_t)ST_i64);
|
|
addbyte(0x09); /*OR EAX, EDX*/
|
|
addbyte(0xd0);
|
|
addbyte(0x89); /*MOV [ST_i64+4+EBX*8], EDX*/
|
|
addbyte(0x14);
|
|
addbyte(0xdd);
|
|
addlong(((uint32_t)ST_i64) + 4);
|
|
addbyte(0x83); /*CMP EAX, 0*/
|
|
addbyte(0xf8);
|
|
addbyte(0);
|
|
addbyte(0xdf); /*FILDl [ST_i64+EBX*8]*/
|
|
addbyte(0x2c);
|
|
addbyte(0xdd);
|
|
addlong((uint32_t)ST_i64);
|
|
addbyte(0x0f); /*SETE AL*/
|
|
addbyte(0x94);
|
|
addbyte(0xc0);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x0c); /*OR AL, TAG_UINT64*/
|
|
addbyte(TAG_UINT64);
|
|
addbyte(0x89); /*MOV TOP, EBX*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x88); /*MOV [tag+EBX], AL*/
|
|
addbyte(0x83);
|
|
addlong((uint32_t)tag);
|
|
}
|
|
|
|
static int FP_LOAD_REG(int reg)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
if (reg)
|
|
{
|
|
addbyte(0x83); /*ADD EBX, reg*/
|
|
addbyte(0xc3);
|
|
addbyte(reg);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
}
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0xd9); /*FSTP [ESP]*/
|
|
addbyte(0x1c);
|
|
addbyte(0x24);
|
|
addbyte(0x8b); /*MOV EAX, [ESP]*/
|
|
addbyte(0x04 | (REG_EBX << 3));
|
|
addbyte(0x24);
|
|
|
|
return REG_EBX;
|
|
}
|
|
|
|
static void FP_LOAD_REG_D(int reg, int *host_reg1, int *host_reg2)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
if (reg)
|
|
{
|
|
addbyte(0x83); /*ADD EBX, reg*/
|
|
addbyte(0xc3);
|
|
addbyte(reg);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
}
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0xdd); /*FSTP [ESP]*/
|
|
addbyte(0x1c);
|
|
addbyte(0x24);
|
|
addbyte(0x8b); /*MOV EBX, [ESP]*/
|
|
addbyte(0x04 | (REG_EBX << 3));
|
|
addbyte(0x24);
|
|
addbyte(0x8b); /*MOV ECX, [ESP+4]*/
|
|
addbyte(0x44 | (REG_ECX << 3));
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
|
|
*host_reg1 = REG_EBX;
|
|
*host_reg2 = REG_ECX;
|
|
}
|
|
|
|
|
|
static double _fp_half = 0.5;
|
|
|
|
static void FP_LOAD_ROUNDING()
|
|
{
|
|
pclog("npxc %04x\n", npxc);
|
|
addbyte(0x8b); /*MOV EDX, npxc*/
|
|
addbyte(0x15);
|
|
addlong((uintptr_t)&npxc);
|
|
addbyte(0xd9); /*FSTCW [ESP+8]*/
|
|
addbyte(0x7c);
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
addbyte(0x89); /*MOV [ESP+12],EDX*/
|
|
addbyte(0x54);
|
|
addbyte(0x24);
|
|
addbyte(0x0c);
|
|
addbyte(0xd9); /*FLDCW [ESP+12]*/
|
|
addbyte(0x6c);
|
|
addbyte(0x24);
|
|
addbyte(0x0c);
|
|
}
|
|
static void FP_RESTORE_ROUNDING()
|
|
{
|
|
addbyte(0xd9); /*FLDCW [ESP+8]*/
|
|
addbyte(0x6c);
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
}
|
|
|
|
static int32_t x87_fround32(double b)
|
|
{
|
|
switch ((npxc>>10)&3)
|
|
{
|
|
case 0: /*Nearest*/
|
|
return (int32_t)(b+0.5);
|
|
case 1: /*Down*/
|
|
return (int32_t)floor(b);
|
|
case 2: /*Up*/
|
|
return (int32_t)ceil(b);
|
|
case 3: /*Chop*/
|
|
return (int32_t)b;
|
|
}
|
|
}
|
|
static int64_t x87_fround64(double b)
|
|
{
|
|
switch ((npxc>>10)&3)
|
|
{
|
|
case 0: /*Nearest*/
|
|
return (int64_t)(b+0.5);
|
|
case 1: /*Down*/
|
|
return (int64_t)floor(b);
|
|
case 2: /*Up*/
|
|
return (int64_t)ceil(b);
|
|
case 3: /*Chop*/
|
|
return (int64_t)b;
|
|
}
|
|
}
|
|
static int FP_LOAD_REG_INT_W(int reg)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
if (reg)
|
|
{
|
|
addbyte(0x83); /*ADD EBX, reg*/
|
|
addbyte(0xc3);
|
|
addbyte(reg);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
}
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
|
|
addbyte(0x89); /*MOV [ESP+8], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
|
|
addbyte(0xdd); /*FSTP [ESP]*/
|
|
addbyte(0x1c);
|
|
addbyte(0x24);
|
|
|
|
CALL_FUNC(x87_fround32);
|
|
|
|
addbyte(0x89); /*MOV EBX, EAX*/
|
|
addbyte(0xc3);
|
|
|
|
addbyte(0x8b); /*MOV EAX, [ESP+8]*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
|
|
return REG_EBX;
|
|
}
|
|
static int FP_LOAD_REG_INT(int reg)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
if (reg)
|
|
{
|
|
addbyte(0x83); /*ADD EBX, reg*/
|
|
addbyte(0xc3);
|
|
addbyte(reg);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
}
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
|
|
addbyte(0x89); /*MOV [ESP+8], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
|
|
addbyte(0xdd); /*FSTP [ESP]*/
|
|
addbyte(0x1c);
|
|
addbyte(0x24);
|
|
|
|
CALL_FUNC(x87_fround32);
|
|
|
|
addbyte(0x89); /*MOV EBX, EAX*/
|
|
addbyte(0xc3);
|
|
|
|
addbyte(0x8b); /*MOV EAX, [ESP+8]*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
|
|
return REG_EBX;
|
|
}
|
|
static void FP_LOAD_REG_INT_Q(int reg, int *host_reg1, int *host_reg2)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
if (reg)
|
|
{
|
|
addbyte(0x83); /*ADD EBX, reg*/
|
|
addbyte(0xc3);
|
|
addbyte(reg);
|
|
addbyte(0x83); /*AND EBX, 7*/
|
|
addbyte(0xe3);
|
|
addbyte(7);
|
|
}
|
|
if (codegen_fpu_loaded_iq[TOP] && (tag[TOP] & TAG_UINT64))
|
|
{
|
|
/*If we know the register was loaded with FILDq in this block and
|
|
has not been modified, then we can skip most of the conversion
|
|
and just load the 64-bit integer representation directly */
|
|
addbyte(0x8b); /*MOV ECX, [ST_i64+EBX*8]*/
|
|
addbyte(0x0c);
|
|
addbyte(0xdd);
|
|
addlong((uint32_t)ST_i64+4);
|
|
addbyte(0x8b); /*MOV EBX, [ST_i64+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uint32_t)ST_i64);
|
|
|
|
return;
|
|
}
|
|
|
|
addbyte(0xf6); /*TEST TAG[EBX], TAG_UINT64*/
|
|
addbyte(0x83);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(TAG_UINT64);
|
|
addbyte(0x74); /*JZ +*/
|
|
addbyte(7+7+2);
|
|
|
|
addbyte(0x8b); /*MOV ECX, [ST_i64+EBX*8]*/
|
|
addbyte(0x0c);
|
|
addbyte(0xdd);
|
|
addlong((uint32_t)ST_i64+4);
|
|
addbyte(0x8b); /*MOV EBX, [ST_i64+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uint32_t)ST_i64);
|
|
|
|
addbyte(0xeb); /*JMP done*/
|
|
addbyte(7+4+3+5+2+2+4);
|
|
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
|
|
addbyte(0x89); /*MOV [ESP+8], EAX*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
|
|
addbyte(0xdd); /*FSTP [ESP]*/
|
|
addbyte(0x1c);
|
|
addbyte(0x24);
|
|
|
|
CALL_FUNC(x87_fround64);
|
|
|
|
addbyte(0x89); /*MOV EBX, EAX*/
|
|
addbyte(0xc3);
|
|
|
|
addbyte(0x89); /*MOV ECX, EDX*/
|
|
addbyte(0xd1);
|
|
|
|
addbyte(0x8b); /*MOV EAX, [ESP+8]*/
|
|
addbyte(0x44);
|
|
addbyte(0x24);
|
|
addbyte(0x08);
|
|
|
|
*host_reg1 = REG_EBX;
|
|
*host_reg2 = REG_ECX;
|
|
}
|
|
|
|
static void FP_POP()
|
|
{
|
|
addbyte(0xa1); /*MOV EAX, TOP*/
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0xc6); /*MOVB tag[EAX], 3*/
|
|
addbyte(0x80);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(3);
|
|
addbyte(0x04); /*ADD AL, 1*/
|
|
addbyte(1);
|
|
addbyte(0x24); /*AND AL, 7*/
|
|
addbyte(7);
|
|
addbyte(0xa2); /*MOV TOP, AL*/
|
|
addlong((uintptr_t)&TOP);
|
|
}
|
|
|
|
#define FPU_ADD 0x00
|
|
#define FPU_DIV 0x30
|
|
#define FPU_DIVR 0x38
|
|
#define FPU_MUL 0x08
|
|
#define FPU_SUB 0x20
|
|
#define FPU_SUBR 0x28
|
|
|
|
static void FP_OP_S(int op)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x80); /*AND tag[EBX], ~TAG_UINT64*/
|
|
addbyte(0xa3);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(~TAG_UINT64);
|
|
addbyte(0xd8); /*FADD [ESP]*/
|
|
addbyte(0x04 | op);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
}
|
|
static void FP_OP_D(int op)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x89); /*MOV [ESP+4], EDX*/
|
|
addbyte(0x54);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x80); /*AND tag[EBX], ~TAG_UINT64*/
|
|
addbyte(0xa3);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(~TAG_UINT64);
|
|
addbyte(0xdc); /*FADD [ESP]*/
|
|
addbyte(0x04 | op);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
}
|
|
static void FP_OP_IW(int op)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x80); /*AND tag[EBX], ~TAG_UINT64*/
|
|
addbyte(0xa3);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(~TAG_UINT64);
|
|
addbyte(0xde); /*FADD [ESP]*/
|
|
addbyte(0x04 | op);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
}
|
|
static void FP_OP_IL(int op)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x80); /*AND tag[EBX], ~TAG_UINT64*/
|
|
addbyte(0xa3);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(~TAG_UINT64);
|
|
addbyte(0xda); /*FADD [ESP]*/
|
|
addbyte(0x04 | op);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
}
|
|
static void FP_OP_IQ(int op)
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x89); /*MOV [ESP+4], EDX*/
|
|
addbyte(0x54);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x80); /*AND tag[EBX], ~TAG_UINT64*/
|
|
addbyte(0xa3);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(~TAG_UINT64);
|
|
addbyte(0xdc); /*FADD [ESP]*/
|
|
addbyte(0x04 | op);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FSTP [ST+EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
}
|
|
|
|
#define C0 (1<<8)
|
|
#define C1 (1<<9)
|
|
#define C2 (1<<10)
|
|
#define C3 (1<<14)
|
|
|
|
static void FP_COMPARE_S()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x8a); /*MOV BL, [npxs+1]*/
|
|
addbyte(0x1d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
addbyte(0xdb); /*FCLEX*/
|
|
addbyte(0xe2);
|
|
addbyte(0x80); /*AND BL, ~(C0|C2|C3)*/
|
|
addbyte(0xe3);
|
|
addbyte((~(C0|C2|C3)) >> 8);
|
|
addbyte(0xd8); /*FCOMP [ESP]*/
|
|
addbyte(0x04 | 0x18);
|
|
addbyte(0x24);
|
|
addbyte(0xdf); /*FSTSW AX*/
|
|
addbyte(0xe0);
|
|
addbyte(0x80); /*AND AH, (C0|C2|C3)*/
|
|
addbyte(0xe4);
|
|
addbyte((C0|C2|C3) >> 8);
|
|
addbyte(0x08); /*OR BL, AH*/
|
|
addbyte(0xe3);
|
|
addbyte(0x88); /*MOV [npxs+1], BL*/
|
|
addbyte(0x1d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
}
|
|
static void FP_COMPARE_D()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0x89); /*MOV [ESP+4], EDX*/
|
|
addbyte(0x54);
|
|
addbyte(0x24);
|
|
addbyte(0x04);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x8a); /*MOV BL, [npxs+1]*/
|
|
addbyte(0x1d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
addbyte(0xdb); /*FCLEX*/
|
|
addbyte(0xe2);
|
|
addbyte(0x80); /*AND BL, ~(C0|C2|C3)*/
|
|
addbyte(0xe3);
|
|
addbyte((~(C0|C2|C3)) >> 8);
|
|
addbyte(0xdc); /*FCOMP [ESP]*/
|
|
addbyte(0x04 | 0x18);
|
|
addbyte(0x24);
|
|
addbyte(0xdf); /*FSTSW AX*/
|
|
addbyte(0xe0);
|
|
addbyte(0x80); /*AND AH, (C0|C2|C3)*/
|
|
addbyte(0xe4);
|
|
addbyte((C0|C2|C3) >> 8);
|
|
addbyte(0x08); /*OR BL, AH*/
|
|
addbyte(0xe3);
|
|
addbyte(0x88); /*MOV [npxs+1], BL*/
|
|
addbyte(0x1d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
}
|
|
static void FP_COMPARE_IW()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x8a); /*MOV BL, [npxs+1]*/
|
|
addbyte(0x1d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
addbyte(0xdb); /*FCLEX*/
|
|
addbyte(0xe2);
|
|
addbyte(0x80); /*AND BL, ~(C0|C2|C3)*/
|
|
addbyte(0xe3);
|
|
addbyte((~(C0|C2|C3)) >> 8);
|
|
addbyte(0xde); /*FCOMP [ESP]*/
|
|
addbyte(0x04 | 0x18);
|
|
addbyte(0x24);
|
|
addbyte(0xdf); /*FSTSW AX*/
|
|
addbyte(0xe0);
|
|
addbyte(0x80); /*AND AH, (C0|C2|C3)*/
|
|
addbyte(0xe4);
|
|
addbyte((C0|C2|C3) >> 8);
|
|
addbyte(0x08); /*OR BL, AH*/
|
|
addbyte(0xe3);
|
|
addbyte(0x88); /*MOV [npxs+1], BL*/
|
|
addbyte(0x1d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
}
|
|
static void FP_COMPARE_IL()
|
|
{
|
|
addbyte(0x8b); /*MOV EBX, TOP*/
|
|
addbyte(0x1d);
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0x89); /*MOV [ESP], EAX*/
|
|
addbyte(0x04);
|
|
addbyte(0x24);
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xdd);
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x8a); /*MOV BL, [npxs+1]*/
|
|
addbyte(0x1d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
addbyte(0xdb); /*FCLEX*/
|
|
addbyte(0xe2);
|
|
addbyte(0x80); /*AND BL, ~(C0|C2|C3)*/
|
|
addbyte(0xe3);
|
|
addbyte((~(C0|C2|C3)) >> 8);
|
|
addbyte(0xda); /*FCOMP [ESP]*/
|
|
addbyte(0x04 | 0x18);
|
|
addbyte(0x24);
|
|
addbyte(0xdf); /*FSTSW AX*/
|
|
addbyte(0xe0);
|
|
addbyte(0x80); /*AND AH, (C0|C2|C3)*/
|
|
addbyte(0xe4);
|
|
addbyte((C0|C2|C3) >> 8);
|
|
addbyte(0x08); /*OR BL, AH*/
|
|
addbyte(0xe3);
|
|
addbyte(0x88); /*MOV [npxs+1], BL*/
|
|
addbyte(0x1d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
}
|
|
|
|
static void FP_OP_REG(int op, int dst, int src)
|
|
{
|
|
addbyte(0xa1); /*MOV EAX, TOP*/
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0xbe); /*MOVL ESI, ST*/
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x89); /*MOV EBX, EAX*/
|
|
addbyte(0xc3);
|
|
if (src || dst)
|
|
{
|
|
addbyte(0x83); /*ADD EAX, 1*/
|
|
addbyte(0xc0);
|
|
addbyte(src ? src : dst);
|
|
addbyte(0x83); /*AND EAX, 7*/
|
|
addbyte(0xe0);
|
|
addbyte(7);
|
|
}
|
|
|
|
if (src)
|
|
{
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xde);
|
|
addbyte(0x80); /*AND tag[EBX], ~TAG_UINT64*/
|
|
addbyte(0xa3);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(~TAG_UINT64);
|
|
addbyte(0xdc); /*FADD ST[EAX*8]*/
|
|
addbyte(0x04 | op);
|
|
addbyte(0xc6);
|
|
addbyte(0xdd); /*FSTP ST[EBX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xde);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0xdd); /*FLD [ESI+EAX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xc6);
|
|
addbyte(0x80); /*AND tag[EAX], ~TAG_UINT64*/
|
|
addbyte(0xa0);
|
|
addlong((uintptr_t)tag);
|
|
addbyte(~TAG_UINT64);
|
|
addbyte(0xdc); /*FADD ST[EBX*8]*/
|
|
addbyte(0x04 | op);
|
|
addbyte(0xde);
|
|
addbyte(0xdd); /*FSTP ST[EAX*8]*/
|
|
addbyte(0x1c);
|
|
addbyte(0xc6);
|
|
}
|
|
}
|
|
|
|
static void FP_COMPARE_REG(int dst, int src)
|
|
{
|
|
addbyte(0xa1); /*MOV EAX, TOP*/
|
|
addlong((uintptr_t)&TOP);
|
|
addbyte(0xbe); /*MOVL ESI, ST*/
|
|
addlong((uintptr_t)ST);
|
|
addbyte(0x89); /*MOV EBX, EAX*/
|
|
addbyte(0xc3);
|
|
if (src || dst)
|
|
{
|
|
addbyte(0x83); /*ADD EAX, 1*/
|
|
addbyte(0xc0);
|
|
addbyte(src ? src : dst);
|
|
addbyte(0x83); /*AND EAX, 7*/
|
|
addbyte(0xe0);
|
|
addbyte(7);
|
|
}
|
|
|
|
addbyte(0x8a); /*MOV CL, [npxs+1]*/
|
|
addbyte(0x0d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
addbyte(0xdb); /*FCLEX*/
|
|
addbyte(0xe2);
|
|
addbyte(0x80); /*AND CL, ~(C0|C2|C3)*/
|
|
addbyte(0xe1);
|
|
addbyte((~(C0|C2|C3)) >> 8);
|
|
|
|
if (src)
|
|
{
|
|
addbyte(0xdd); /*FLD ST[EBX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xde);
|
|
addbyte(0xdc); /*FCOMP ST[EAX*8]*/
|
|
addbyte(0x04 | 0x18);
|
|
addbyte(0xc6);
|
|
}
|
|
else
|
|
{
|
|
addbyte(0xdd); /*FLD [ESI+EAX*8]*/
|
|
addbyte(0x04);
|
|
addbyte(0xc6);
|
|
addbyte(0xdc); /*FCOMP ST[EBX*8]*/
|
|
addbyte(0x04 | 0x18);
|
|
addbyte(0xde);
|
|
}
|
|
|
|
addbyte(0xdf); /*FSTSW AX*/
|
|
addbyte(0xe0);
|
|
addbyte(0x80); /*AND AH, (C0|C2|C3)*/
|
|
addbyte(0xe4);
|
|
addbyte((C0|C2|C3) >> 8);
|
|
addbyte(0x08); /*OR CL, AH*/
|
|
addbyte(0xe1);
|
|
addbyte(0x88); /*MOV [npxs+1], CL*/
|
|
addbyte(0x0d);
|
|
addlong(((uintptr_t)&npxs) + 1);
|
|
}
|
|
|
|
static void ZERO_EXTEND_W_B(int reg)
|
|
{
|
|
addbyte(0x0f); /*MOVZX regl, regb*/
|
|
addbyte(0xb6);
|
|
addbyte(0xc0 | reg | (reg << 3));
|
|
}
|
|
static void ZERO_EXTEND_L_B(int reg)
|
|
{
|
|
addbyte(0x0f); /*MOVZX regl, regb*/
|
|
addbyte(0xb6);
|
|
addbyte(0xc0 | reg | (reg << 3));
|
|
}
|
|
static void ZERO_EXTEND_L_W(int reg)
|
|
{
|
|
addbyte(0x0f); /*MOVZX regl, regw*/
|
|
addbyte(0xb7);
|
|
addbyte(0xc0 | reg | (reg << 3));
|
|
}
|
|
|
|
static void SIGN_EXTEND_W_B(int reg)
|
|
{
|
|
addbyte(0x0f); /*MOVSX regl, regb*/
|
|
addbyte(0xbe);
|
|
addbyte(0xc0 | reg | (reg << 3));
|
|
}
|
|
static void SIGN_EXTEND_L_B(int reg)
|
|
{
|
|
addbyte(0x0f); /*MOVSX regl, regb*/
|
|
addbyte(0xbe);
|
|
addbyte(0xc0 | reg | (reg << 3));
|
|
}
|
|
static void SIGN_EXTEND_L_W(int reg)
|
|
{
|
|
addbyte(0x0f); /*MOVSX regl, regw*/
|
|
addbyte(0xbf);
|
|
addbyte(0xc0 | reg | (reg << 3));
|
|
}
|