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Diffstat (limited to 'gcc-4.9/libgcc/config/cr16/lib1funcs.S')
| -rw-r--r-- | gcc-4.9/libgcc/config/cr16/lib1funcs.S | 563 |
1 files changed, 563 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/cr16/lib1funcs.S b/gcc-4.9/libgcc/config/cr16/lib1funcs.S new file mode 100644 index 000000000..def859231 --- /dev/null +++ b/gcc-4.9/libgcc/config/cr16/lib1funcs.S @@ -0,0 +1,563 @@ +/* Libgcc Target specific implementation. + Copyright (C) 2012-2014 Free Software Foundation, Inc. + Contributed by KPIT Cummins Infosystems Limited. + + This file is part of GCC. + + GCC is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 3, or (at your option) any later + version. + + GCC is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + Under Section 7 of GPL version 3, you are granted additional + permissions described in the GCC Runtime Library Exception, version + 3.1, as published by the Free Software Foundation. + + You should have received a copy of the GNU General Public License and + a copy of the GCC Runtime Library Exception along with this program; + see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + <http://www.gnu.org/licenses/>. */ + +#ifdef L_mulsi3 + .text + .align 4 + .globl ___mulsi3 +___mulsi3: + movw r4,r0 + movw r2,r1 + /* Extended multiplication between the 2 lower words */ + muluw r1,(r1,r0) + + /* Multiply the lower word of each parameter */ + mulw r2,r5 + + /* With the higher word of the other */ + mulw r3,r4 + + /* Add products to the higher part of the final result */ + addw r4,r1 + addw r5,r1 + jump (ra) +#endif + +#ifdef L_divdi3 + .text + .align 4 + .globl ___divdi3 + +___divdi3: + push $4, r7, ra + + /* Param #1 Long Long low bit first */ + loadd 12(sp), (r1, r0) + loadd 16(sp), (r3, r2) + + /* Param #2 Long Long low bit first */ + loadd 20(sp), (r5, r4) + loadd 24(sp), (r7, r6) + + /* Set neg to 0 */ + movw $0, r10 + + subd $16, (sp) + + /* Compare if param1 is greater than 0 */ + cmpw $0, r3 + ble L4 + + /* Invert param1 and neg */ + movd $-1, (r9, r8) /* Temp set to FFFFFFFF */ + xord (r9, r8), (r1, r0) /* Xor low bits of param 1 with temp */ + xord (r9, r8), (r3, r2) /* Xor high bits of param 1 with temp */ + addd $1, (r1, r0) /* Add 1 to low bits of param 1 */ + xorw $1, r10 /* Invert neg */ + bcc L4 /* If no carry occurred go to L4 */ + addd $1, (r3, r2) /* Add 1 to high bits of param 1 */ + +L4: stord (r1, r0), 0(sp) + stord (r3, r2), 4(sp) + + /* Compare if param2 is greater than 0 */ + cmpw $0, r7 + ble L5 + + /* Invert param2 and neg */ + movd $-1, (r9, r8) /* Temp set to FFFFFFFF */ + xord (r9, r8), (r5, r4) /* Xor low bits of param 2 with temp */ + xord (r9, r8), (r7, r6) /* Xor high bits of param 2 with temp */ + addd $1, (r5, r4) /* Add 1 to low bits of param 2 */ + xorw $1, r10 /* Invert neg */ + bcc L5 /* If no carry occurred go to L5 */ + addd $1, (r7, r6) /* Add 1 to high bits of param 2 */ + +L5: stord (r5, r4), 8(sp) + stord (r7, r6), 12(sp) + movw $0, r2 + + /* Call udivmoddi3 */ +#ifdef __PIC__ + loadd ___udivmoddi3@cGOT(r12), (r1,r0) + jal (r1,r0) +#else + bal (ra), ___udivmoddi3 +#endif + + /* If (neg) */ + addd $16, (sp) + cmpw $0, r10 /* Compare 0 with neg */ + beq Lexit__ + + /* Neg = -Neg */ + xord (r9, r8), (r1, r0) /* Xor low bits of ures with temp */ + xord (r9, r8), (r3, r2) /* Xor high bits of ures with temp */ + addd $1, (r1, r0) /* Add 1 to low bits of ures */ + bcc Lexit__ + addd $1, (r3, r2) /* Add 1 to high bit of ures */ + +Lexit__: +# ifdef __ID_SHARED_LIB__ + pop $2, r12 +# endif + popret $4, r7, ra +#endif + +#ifdef L_lshrdi3 + .text + .align 4 + .globl ___lshrdi3 + +___lshrdi3: + push $3, r7 + + /* Load parameters from stack in this order */ + movw r2, r6 /* Number of shifts */ + loadd 6(sp), (r1, r0) /* Low bits */ + loadd 10(sp), (r3, r2)/* High bits */ + + xorw $-1, r6 /* Invert number of shifts */ + addw $1, r6 /* Add 1 by number of shifts */ + + movw r6, r7 /* Copy number of shifts */ + + tbit $15, r6 /* Test if number is negative */ + bfs L2 /* If negative jump to L2 */ + + movd (r1, r0), (r9, r8) /* Copy low bits */ + + subw $32, r7 /* Calc how many bits will overflow */ + /* Shift the temp low bit to the right to see the overflowing bits */ + lshd r7, (r9, r8) + + cmpw $32, r6 /* If number of shifts is higher than 31 */ + blt L1 /* Shift by moving */ + + lshd r6, (r3, r2) /* Shift high bits */ + lshd r6, (r1, r0) /* Shift low bits */ + addd (r9, r8), (r3, r2) /* Add overflow to the high bits */ + popret $3, r7 /* Return */ + +L1: movd $0, (r1, r0) /* Reset low bit */ + movd (r9, r8), (r3, r2) /* Add the overflow from the low bit */ + popret $3, r7 /* Return */ + +L2: movd (r3, r2), (r9, r8) /* Copy high bits */ + + addw $32, r7 /* Calc how many bits will overflow */ + /* Shift the temp low bit to the left to see the overflowing bits */ + lshd r7, (r9, r8) + + cmpw $-32, r6 /* If number of shifts is lower than -31 */ + bgt L3 /* Shift by moving */ + + lshd r6, (r1, r0) /* Shift low bits */ + lshd r6, (r3, r2) /* Shift high bits */ + addd (r9, r8), (r1, r0) /* Add overflow to the low bits */ + popret $3, r7 /* Return */ + +L3: movd $0, (r3, r2) /* Reset the high bit */ + movd (r9, r8), (r1, r0) /* Add the overflow from the high bit */ + popret $3, r7 /* Return */ +#endif + +#ifdef L_moddi3 + .text + .align 4 + .globl ___moddi3 + +___moddi3: + push $4, r7, ra + + /* Param #1 Long Long low bit first */ + loadd 12(sp), (r1, r0) + loadd 16(sp), (r3, r2) + + /* Param #2 Long Long low bit first */ + loadd 20(sp), (r5, r4) + loadd 24(sp), (r7, r6) + + subd $18, (sp) + + /* Set neg to 0 */ + storw $0, 16(sp) + + movd $-1, (r9, r8) /* Temp set to FFFFFFFF */ + + /* Compare if param1 is greater than 0 */ + cmpw $0, r3 + ble L4 + + /* Invert param1 and neg */ + xord (r9, r8), (r1, r0) /* Xor low bits of param 1 with temp */ + xord (r9, r8), (r3, r2) /* Xor high bits of param 1 with temp */ + addd $1, (r1, r0) /* Add 1 to low bits of param 1 */ + storw $1, 16(sp) + bcc L4 /* If no carry occurred go to L4 */ + addd $1, (r3, r2) /* Add 1 to high bits of param 1 */ + +L4: stord (r1, r0), 0(sp) + stord (r3, r2), 4(sp) + + /* Compare if param2 is greater than 0 */ + cmpw $0, r7 + ble L5 + + /* Invert param2 and neg */ + xord (r9, r8), (r5, r4) /* Xor low bits of param 2 with temp */ + xord (r9, r8), (r7, r6) /* Xor high bits of param 2 with temp */ + addd $1, (r5, r4) /* Add 1 to low bits of param 2 */ + bcc L5 /* If no carry occurred go to L5 */ + addd $1, (r7, r6) /* Add 1 to high bits of param 2 */ + +L5: stord (r5, r4), 8(sp) + stord (r7, r6), 12(sp) + movw $1, r2 + + /* Call udivmoddi3 */ +#ifdef __PIC__ + loadd ___udivmoddi3@cGOT(r12), (r1,r0) + jal (r1,r0) +#else + bal (ra), ___udivmoddi3 +#endif + + /* If (neg) */ + loadw 16(sp), r10 /* Load neg from stack */ + addd $18, (sp) + cmpw $0, r10 /* Compare 0 with neg */ + beq Lexit__ + + /* Neg = -Neg */ + xord (r9, r8), (r1, r0) /* Xor low bits of ures with temp */ + xord (r9, r8), (r3, r2) /* Xor high bits of ures with temp */ + addd $1, (r1, r0) /* Add 1 to low bits of ures */ + bcc Lexit__ + addd $1, (r3, r2) /* Add 1 to high bit of ures */ +Lexit__: +# ifdef __ID_SHARED_LIB__ + pop $2, r12 +# endif + popret $4, r7, ra +#endif + +#ifdef L_muldi3 + .text + .align 4 + .globl ___muldi3 + +___muldi3: + push $2, r13 + push $7, r7 + + /* Param #1 Long Long low bit first */ + loadd 18(sp), (r1, r0) + loadd 22(sp), (r3, r2) + + /* Param #2 Long Long low bit first */ + loadd 26(sp), (r5, r4) + loadd 30(sp), (r7, r6) + + /* Clear r13, r12 */ + movd $0, (r12) + movd $0, (r13) + + /* Set neg */ + movw $0, r10 + + /* Compare if param1 is greater than 0 */ + cmpw $0, r3 + ble L1 + + /* Invert param1 and neg */ + movd $-1, (r9, r8) /* Temp set to FFFFFFFF */ + xord (r9, r8), (r1, r0) /* Xor low bits of param 1 with temp */ + xord (r9, r8), (r3, r2) /* Xor high bits of param 1 with temp */ + addd $1, (r1, r0) /* Add 1 to low bits of param 1 */ + xorw $1, r10 /* Invert neg */ + bcc L1 /* If no carry occurred go to L1 */ + addd $1, (r3, r2) /* Add 1 to high bits of param 1 */ + +L1: /* Compare if param2 is greater than 0 */ + cmpw $0, r7 + ble L2 + + /* Invert param2 and neg */ + movd $-1, (r9, r8) /* Temp set to FFFFFFFF */ + xord (r9, r8), (r5, r4) /* Xor low bits of param 2 with temp */ + xord (r9, r8), (r7, r6) /* Xor high bits of param 2 with temp */ + addd $1, (r5, r4) /* Add 1 to low bits of param 2 */ + xorw $1, r10 /* Invert neg */ + bcc L2 /* If no carry occurred go to L2 */ + addd $1, (r7, r6) /* Add 1 to high bits of param 2 */ + +L2: storw r10, 18(sp) /* Store neg to stack so we can use r10 */ + + /* B*D */ + /* Bl*Dl */ + macuw r0, r4, (r12) /* Multiply r0 and r4 and add to r12 */ + + /* Bh*Dl */ + movd $0, (r9, r8) /* Clear r9, r8 */ + macuw r1, r4, (r9, r8) /* Multiply Bh*Dl and add result to (r9, r8) */ + movw r9, r10 /* Shift left: r9 to r10 */ + lshd $16, (r9, r8) /* Shift left: r8 to r9 */ + movw $0, r11 /* Clear r11 */ + addd (r9, r8), (r12) /* Add (r9, r8) to r12 */ + bcc L3 /* If no carry occurred go to L3 */ + addd $1, (r13) /* If carry occurred add 1 to r13 */ + +L3: addd (r11, r10), (r13) /* Add (r11, r10) to r13 */ + + /* Bl*Dh */ + movd $0, (r9, r8) /* Clear (r9, r8) */ + macuw r0, r5, (r9, r8) /* Multiply r0 and r5 and stor in (r9, r8) */ + movw r9, r10 /* Shift left: r9 to r10 */ + lshd $16, (r9, r8) /* Shift left: r8 to r9 */ + addd (r9, r8), (r12) /* Add (r9, r8) to r12 */ + bcc L4 /* If no carry occurred go to L4 */ + addd $1, (r13) /* If carry occurred add 1 to r13 */ + +L4: addd (r11, r10), (r13) /* Add (r11, r10) to r13 */ + + /* Bh*Dh */ + movd $0, (r9, r8) /* Clear (r9, r8) */ + macuw r1, r5, (r9, r8) /* Multiply r1 and r5 and add to r13 */ + addd (r9, r8), (r13) /* Add (r9, r8) to result */ + + /* A*D */ + /* Al*Dl */ + movd $0, (r11, r10) /* Clear (r11, r10) */ + macuw r2, r4, (r11, r10)/* Multiply r2 and r4 and add to (r11, r10) */ + + addd (r13), (r11, r10) /* Copy r13 to (r11, r10) */ + + /* Al*Dh */ + movd $0, (r9, r8) /* Clear (r9, r8) */ + macuw r2, r5, (r9, r8) /* Multiply r2 and r5 and add to (r9, r8) */ + addw r8, r11 /* Add r8 to r11 */ + + /* Ah*Dl */ + muluw r3, (r5, r4) /* Multiply r3 and r4 and stor in (r5, r4) */ + addw r4, r11 /* Add r4 to r11 */ + + /* B*C */ + /* Bl*Cl */ + movd $0, (r9, r8) /* Clear (r9, r8) */ + macuw r0, r6, (r9, r8) /* Multiply r0 and r6 and add to (r9, r8) */ + addd (r9, r8), (r11, r10)/* Add (r9, r8) to result */ + + /* Bl*Ch */ + movd $0, (r9, r8) /* Clear (r9, r8) */ + macuw r0, r7, (r9, r8) /* Multiply r0 and r7 and add to (r9, r8) */ + addw r8, r11 /* Add r8 to r11 */ + + loadw 18(sp), r8 /* Load neg from stack */ + + /* Bh*Cl */ + muluw r1, (r7, r6) /* Multiply r1 and r6 and stor in (r7, r6) */ + addw r6, r11 /* Add r6 to r11 */ + +E1: movd (r11, r10), (r3, r2) + movd (r12), (r1, r0) + + /* If (neg) */ + cmpw $0, r8 /* Compare 0 with neg */ + beq Lexit__ + + /* Neg = -Neg */ + movd $-1, (r9, r8) /* Temp set to FFFFFFFF */ + xord (r9, r8), (r1, r0) /* Xor low bits of result with temp */ + xord (r9, r8), (r3, r2) /* Xor high bits of result with temp */ + addd $1, (r1, r0) /* Add 1 to low bits of result */ + bcc Lexit__ + addd $1, (r3, r2) /* Add 1 to high bit of result */ +Lexit__: + pop $7, r7 + popret $2, r13 +#endif + +#ifdef L_negdi2 + .text + .align 4 + .globl ___negdi2 + +___negdi2: + /* Load parameter from the registers in this order */ + loadd 0(sp), (r1, r0) + loadd 4(sp), (r3, r2) + + movd $-1, (r6, r5) /* Set temp to FFFFFFFF */ + xord (r6, r5), (r1, r0) /* Xor low bits with temp */ + xord (r6, r5), (r3, r2) /* Xor high bits with temp */ + addd $1, (r1, r0) /* Add one */ + jcc (ra) + addd $1, (r3, r2) /* Add the carry to the high bits */ + jump (ra) +#endif + +#ifdef L_udivdi3 + .text + .align 4 + .globl ___udivdi3 + +___udivdi3: + movw $0, r2 + br ___udivmoddi3 +#endif + +#ifdef L_udivmoddi3 + .text + .align 4 + .globl ___udivmoddi3 + +___udivmoddi3: + push $2, r13 + push $7, r7 + + /* Param #1 Long Long low bit first */ + loadd 18(sp), (r1, r0) + storw r2, 18(sp) /* Store modulo on stack */ + loadd 22(sp), (r3, r2) + + /* Param #2 Long Long low bit first */ + loadd 26(sp), (r5, r4) + loadd 30(sp), (r7, r6) + + /* Set ures to 0 */ + movd $0, (r13) + movd $0, (r12) + + cmpd (r12), (r5, r4) + beq LE + +L5: movd $1, (r9, r8) /* Store 1 in low bits from bit */ + movd $0, (r11, r10) /* Store 0 in high bits from bit */ + +L6: /* While (den < num && (!den & (1LL<<63))) */ + /* Compare high bits from param 1 and param 2 */ + cmpd (r7, r6), (r3, r2) + bhi L10 /* If param 2 is greater go to L10 */ + bne L8 /* If param 1 is greater go to L8 */ + cmpd (r5, r4), (r1, r0) /* Compare low bits from param 1 and param 2 */ + /* If param 2 is greater or the same go to L1 */ + bhs L10 + +L8: /* Check if most significant bit of param 2 is set */ + tbit $15, r7 + bfs L10 /* If PSR is set go to L10 */ + + /* Shift bit */ + lshd $1, (r11, r10) /* Shift left: high bits of bit */ + /* Check if most significant bit of bit is set */ + tbit $15, r9 + lshd $1, (r9, r8) /* Shift left: low bits of bit */ + bfs L28 /* If PSR is set go to L28 */ + +L9: /* Shift b */ + lshd $1, (r7, r6) /* Shift left: high bits of param 2 */ + /* Check if most significant bit of param 2 is set */ + tbit $15, r5 + lshd $1, (r5, r4) /* Shift left: low bits of param 2 */ + bfc L6 /* If PSR is set go to L6 */ + addw $1, r6 /* Add 1 to the highest bits of b */ + br L6 /* Go to L6 */ + +L10: /* While (bit) */ + cmpd $0, (r11, r10) + bne L11 + cmpd $0, (r9, r8) + beq E1 + +L11: /* If (num >= den) */ + cmpd (r3, r2), (r7, r6) /* Compare high bits of param 1 and param 2 */ + blo L15 /* If param 1 lower than param 2 go to L15 */ + bne L12 /* If not equal go to L12 */ + cmpd (r1, r0), (r5, r4) /* Compare low bits of param 1 and param 2 */ + blo L15 /* If param 1 lower than param 2 go to L15 */ + +L12: /* Ures |= bit */ + ord (r11, r10), (r13) + ord (r9, r8), (r12) + + /* Num -= den */ + subd (r7, r6), (r3, r2) /* Subtract highest 32 bits from each other */ + subd (r5, r4), (r1, r0) /* Subtract lowest 32 bits from each other */ + bcc L15 /* If no carry occurred go to L15 */ + subd $1, (r3, r2) /* Subtract the carry */ + +L15: /* Shift bit to the right */ + lshd $-1, (r9, r8) /* Shift right: low bits of bit */ + /* Check if least significant bit of high bits is set */ + tbit $0, r10 + lshd $-1, (r11, r10) /* Shift right: high bits of bit */ + bfs L18 /* If PSR is set go to L18 */ + +L17: /* Shift param#2 to the right */ + lshd $-1, (r5, r4) /* Shift right: low bits of param 2 */ + /* Check if least significant bit of high bits is set */ + tbit $0, r6 + lshd $-1, (r7, r6) /* Shift right: high bits of param 2 */ + bfc L10 /* If PSR is not set go to L10 */ + /* Or with 0x8000 to set most significant bit */ + orw $32768, r5 + br L10 /* Go to L10 */ + +L18: /* Or with 0x8000 to set most significant bit */ + orw $32768, r9 + br L17 + +L28: /* Left shift bit */ + addw $1, r10 /* Add 1 to highest bits of bit */ + br L9 /* Go to L9 */ + +LE: cmpd (r12), (r7, r6) + bne L5 + excp dvz + br Lexit__ + +E1: loadw 18(sp), r4 + cmpw $0, r4 + bne Lexit__ + + /* Return result */ + movd (r12), (r1, r0) + movd (r13), (r3, r2) +Lexit__: + pop $7, r7 + popret $2, r13 +#endif + +#ifdef L_umoddi3 + .text + .align 4 + .globl ___umoddi3 + +___umoddi3: + movw $1, r2 + br ___udivmoddi3 +#endif + |