* Reinhard Grafl EMAIL: cacao@complang.tuwien.ac.at *
* Christian Thalinger *
* *
-* Last Change: $Id: asmpart.S 510 2003-10-22 20:21:50Z twisti $ *
+* Last Change: $Id: asmpart.S 550 2003-11-01 20:34:14Z twisti $ *
* *
*******************************************************************************/
.globl asm_builtin_monitorexit
.globl asm_builtin_ldiv
.globl asm_builtin_lrem
+ .globl asm_builtin_f2i
+ .globl asm_builtin_f2l
+ .globl asm_builtin_d2i
+ .globl asm_builtin_d2l
.globl asm_builtin_arrayinstanceof
.globl asm_perform_threadswitch
.globl asm_initialize_thread_stack
* *
* or *
* *
-* i386_mov_membase_reg(REG_SP, 0, REG_ITMP2) ; invokevirtual/interface *
-* i386_mov_membase_reg(REG_ITMP2, OFFSET(, vftbl), REG_ITMP3) *
-* i386_mov_membase_reg(REG_ITMP3, OFFSET(vftbl, table[0]) + \ *
+* i386_mov_membase_reg(REG_SP, 0, REG_ITMP1) ; invokevirtual/interface *
+* i386_mov_membase_reg(REG_ITMP1, OFFSET(, vftbl), REG_ITMP2) *
+* i386_mov_membase_reg(REG_ITMP2, OFFSET(vftbl, table[0]) + \ *
* sizeof(methodptr) * m->vftblindex, REG_ITMP1) *
* i386_call_reg(REG_ITMP1) *
* *
asm_call_jit_compiler:
- pushl %ebp
- movl %esp, %ebp
-
- pushl %ebx /* save register */
-/* pushl %esi*/
-/* pushl %edi*/
+ push %ecx
+ push %ebx /* save register */
+ push %ebp
- movl 4(%ebp),%edx /* get return address */
- movb -1(%edx),%bl /* get function code */
- cmpb $0xd2,%bl /* called with `call *REG_ITMP2' (%edx)? */
+ mov 12(%esp),%ebp /* get return address (2 push) */
+ mov -1(%ebp),%bl /* get function code */
+ cmp $0xd2,%bl /* called with `call *REG_ITMP2' (%edx)? */
jne L_not_static_special
- subl $6,%edx /* calculate address of immediate */
+ sub $6,%ebp /* calculate address of immediate */
jmp L_call_jit_compile
L_not_static_special:
- cmpb $0xd0,%bl /* called with `call *REG_ITMP1' (%eax) */
+ cmp $0xd0,%bl /* called with `call *REG_ITMP1' (%eax) */
jne L_not_virtual_interface
- subl $6,%edx /* calculate address of offset */
- movl (%edx),%edx /* get offset */
- addl %ecx,%edx /* add base address to get method address */
+ sub $6,%ebp /* calculate address of offset */
+ mov (%ebp),%ebp /* get offset */
+ add %edx,%ebp /* add base address to get method address */
jmp L_call_jit_compile
L_not_virtual_interface: /* a call from asm_calljavamethod */
- xorl %edx,%edx
+ xor %ebp,%ebp
L_call_jit_compile:
- pushl %edx /* save address for method pointer */
+ push %ebp /* save address for method pointer */
- pushl %eax /* push methodpointer on stack */
- call jit_compile
- addl $4,%esp
+ push %eax /* push methodpointer on stack */
+ call jit_compile
+ add $4,%esp
- popl %edx /* restore address for method pointer */
- testl %edx,%edx /* is address == 0 (asm_calljavamethod) */
+ pop %ebp /* restore address for method pointer */
+ test %ebp,%ebp /* is address == 0 (asm_calljavamethod) */
je L_call_method
- movl %eax,(%edx) /* and now save the new pointer */
+ mov %eax,(%ebp) /* and now save the new pointer */
L_call_method:
-/* popl %edi /* restore registers */
-/* popl %esi*/
- popl %ebx
-
- leave
+ pop %ebp
+ pop %ebx /* restore registers */
+ pop %ecx
+
jmp *%eax /* ...and now call the new method */
push %esi
push %edi
- movl 8(%ebp),%eax /* load function pointer */
+ mov 8(%ebp),%eax /* load function pointer */
call *%eax /* call function */
pop %edi
pop %ebx
ret
-
+
/********************* function asm_handle_exception ***************************
* *
*******************************************************************************/
asm_handle_nat_exception:
- addl $4,%esp /* clear return address of native stub */
+ add $4,%esp /* clear return address of native stub */
asm_handle_exception:
- pushl %eax
- pushl %edx /* get the data segment ptr */
- call findmethod
- movl %eax,%ecx
- popl %edx
- popl %eax
+ push %eax
+ push %edx /* get the data segment ptr */
+ call findmethod
+ mov %eax,%ecx
+ pop %edx
+ pop %eax
- pushl %ebp
- movl %esp,%ebp
+ push %ebp
+ mov %esp,%ebp
- pushl %eax /* save exception pointer */
+ push %eax /* save exception pointer */
/* subl $2,%edx */
- pushl %edx /* save exception pc */
- pushl %ecx /* save data segment pointer */
+ push %edx /* save exception pc */
+ push %ecx /* save data segment pointer */
- pushl %ebx
- pushl %esi
- pushl %edi
+ push %ebx
+ push %esi
+ push %edi
ex_stack_loop:
- subl $16,%esp
+ sub $16,%esp
movl %eax,(%esp) /* exception pointer */
jmp asm_handle_exception
+/************************ function asm_builtin_x2x *****************************
+* *
+* Wrapper functions for corner cases *
+* *
+*******************************************************************************/
+
+asm_builtin_f2i:
+ sub $4,%esp
+ fsts (%esp)
+ call builtin_f2i
+ add $4,%esp
+ ret
+
+asm_builtin_d2i:
+ sub $8,%esp
+ fstl (%esp)
+ call builtin_d2i
+ add $8,%esp
+ ret
+
+asm_builtin_f2l:
+ sub $4,%esp
+ fsts (%esp)
+ call builtin_f2l
+ add $4,%esp
+ ret
+
+asm_builtin_d2l:
+ sub $8,%esp
+ fstl (%esp)
+ call builtin_d2l
+ add $8,%esp
+ ret
+
+
/*********************** function new_builtin_checkcast ************************
* *
* Does the cast check and eventually throws an exception *
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