/* SPDX-License-Identifier: GPL-2.0 */
 .file "reg_u_add.S"
/*---------------------------------------------------------------------------+
 |  reg_u_add.S                                                              |
 |                                                                           |
 | |                                                                          |
 |   result in a destination FPU_REG.                                        |
 |                                                                           |
 | Copyright (C) 1992,1993,1995,1997                                         |
|W. Metzenthen, 22  , 3163, |
 |                  E-mail   billm@suburbia.net                              |
 |                                                                            from C :                                                           |
|Call from C :                                                           
 |   int  FPU_u_add(FPU_REG *arg1, FPU_REG *arg2,                                                 intcontrol_w             
 |                                                int              java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
 thetag -ed if     java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
 |    one was raised, or -1 on internal error.                               |
 |                                                                           |
 +---------------------------------------------------------------------------*/

/*
 |    Kernel addition routine FPU_u_add(reg *arg1, reg *arg2 |    and returns   as  TAG_Validor TAG_Special f..number.
 |    Takes two valid reg f. *
 |    treated as  numbers,
 |.ext
 |Thereturned number is .
 |    Basic checks are performed if PARANOID is defined.
 */

# "
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 20
 java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22

.text
SYM_FUNC_START(java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 21
  java.lang.StringIndexOutOfBoundsException: Range [11, 12) out of bounds for length 11
e,e
 pushl  %%java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 42

 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 11

 movljava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 movl PARAM2,%edi  /* source 2 */$, 

 PARAM6%java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 movl shrc,
subl PARAM7,%ecx /* exp1 - exp2 */
 jge L_arg1_larger

 /* num1 is smaller */
 movl SIGL(%esi),java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
%),java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21

 movl %edi,%esi
 movl  , * record the fact in the extension */
 L_morjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 17
 jmpL_exactly_32

_java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 14
/
 movl SIGL(%edi),%java.lang.StringIndexOutOfBoundsException: Range [0, 21) out of bounds for length 13
%,java.lang.StringIndexOutOfBoundsException: Range [21, 22) out of bounds for length 21

java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
 PARAM3edi /
 movw %dx,EXP(%edi)  /* Copy exponent to destination */
java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 15
 xorl % SIGLe)ejava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21

#ifdef
 testl $java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 13
 jejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 19
 jejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
# 

/* The number to be shifted is in %eax:%ebx:%edx */
   /* shrd only works for 0..31 bits */
 jnc L_more_than_31 

   /
 shrd %cl,%ebx,%edx
 %,ebx
 c,
 jmpjava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

endif /* PARANjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 cmpw $64,%cx
 jnc L_more_than_63

 subb $32,%cl
 jz L_exactly_32

 shrd %cl,%eax,%edx
 shr %cl,%eax
 orl %ebx,%ebx
 jz L_more_31_no_low /* none of the lowest bits is set */

 orl $1,%edx   /* record the fact in the extension */

L_more_31_no_low:
 movl %eax,%ebx
 xorl %eax,%eax
 jmp L_shift_done

L_exactly_32:
 movl %ebx,%edx
 movl %eax,%ebx
 xorl %eax,%eax
 jmp L_shift_done

L_more_than_63:
 cmpw $65,%cx
 jnc L_more_than_64

 movl %eax,%edx
 orl %ebx,%ebx
 jz L_more_63_no_low

 orl $1,%edx
 jmp L_more_63_no_low

L_more_than_64:
 movl $1,%edx  /* The shifted nr always at least one '1' */

L_more_63_no_low:
 xorl %ebx,%ebx
 xorl %eax,%eax

L_shift_done:
 /* Now do the addition */
 addl SIGL(%esi),%ebx
 adcl SIGH(%esi),%eax
 jnc L_round_the_result

 /* Overflow, adjust the result */
 rcrl $1,%eax
 rcrl $1,%ebx
 rcrl $1,%edx
 jnc L_no_bit_lost

 orl $1,%edx

L_no_bit_lost:
 incw EXP(%edi)

L_round_the_result:
 jmp fpu_reg_round /* Round the result */



#ifdef PARANOID
/* If we ever get here then we have problems! */
L_bugged:
 pushl EX_INTERNAL|0x201
 call EXCEPTION
 pop %ebx
 movl $-1,%eax
 jmp L_exit

L_exit:
 popl %ebx
 popl %edi
 popl %esi
 leave
 RET
#endif /* PARANOID */
SYM_FUNC_END(FPU_u_add)