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2234 lines
44 KiB
2234 lines
44 KiB
#!/usr/bin/env perl |
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# |
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# ==================================================================== |
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# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL |
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# project. |
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# |
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# Rights for redistribution and usage in source and binary forms are |
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# granted according to the OpenSSL license. Warranty of any kind is |
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# disclaimed. |
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# ==================================================================== |
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# July 1999 |
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# |
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# This is drop-in MIPS III/IV ISA replacement for crypto/bn/bn_asm.c. |
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# |
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# The module is designed to work with either of the "new" MIPS ABI(5), |
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# namely N32 or N64, offered by IRIX 6.x. It's not ment to work under |
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# IRIX 5.x not only because it doesn't support new ABIs but also |
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# because 5.x kernels put R4x00 CPU into 32-bit mode and all those |
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# 64-bit instructions (daddu, dmultu, etc.) found below gonna only |
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# cause illegal instruction exception:-( |
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# |
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# In addition the code depends on preprocessor flags set up by MIPSpro |
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# compiler driver (either as or cc) and therefore (probably?) can't be |
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# compiled by the GNU assembler. GNU C driver manages fine though... |
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# I mean as long as -mmips-as is specified or is the default option, |
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# because then it simply invokes /usr/bin/as which in turn takes |
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# perfect care of the preprocessor definitions. Another neat feature |
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# offered by the MIPSpro assembler is an optimization pass. This gave |
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# me the opportunity to have the code looking more regular as all those |
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# architecture dependent instruction rescheduling details were left to |
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# the assembler. Cool, huh? |
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# |
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# Performance improvement is astonishing! 'apps/openssl speed rsa dsa' |
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# goes way over 3 times faster! |
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# |
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# <appro@fy.chalmers.se> |
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|
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# October 2010 |
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# |
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# Adapt the module even for 32-bit ABIs and other OSes. The former was |
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# achieved by mechanical replacement of 64-bit arithmetic instructions |
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# such as dmultu, daddu, etc. with their 32-bit counterparts and |
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# adjusting offsets denoting multiples of BN_ULONG. Above mentioned |
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# >3x performance improvement naturally does not apply to 32-bit code |
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# [because there is no instruction 32-bit compiler can't use], one |
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# has to content with 40-85% improvement depending on benchmark and |
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# key length, more for longer keys. |
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$flavour = shift; |
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while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} |
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open STDOUT,">$output"; |
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if ($flavour =~ /64|n32/i) { |
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$LD="ld"; |
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$ST="sd"; |
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$MULTU="dmultu"; |
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$DIVU="ddivu"; |
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$ADDU="daddu"; |
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$SUBU="dsubu"; |
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$SRL="dsrl"; |
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$SLL="dsll"; |
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$BNSZ=8; |
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$PTR_ADD="daddu"; |
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$PTR_SUB="dsubu"; |
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$SZREG=8; |
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$REG_S="sd"; |
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$REG_L="ld"; |
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} else { |
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$LD="lw"; |
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$ST="sw"; |
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$MULTU="multu"; |
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$DIVU="divu"; |
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$ADDU="addu"; |
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$SUBU="subu"; |
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$SRL="srl"; |
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$SLL="sll"; |
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$BNSZ=4; |
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$PTR_ADD="addu"; |
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$PTR_SUB="subu"; |
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$SZREG=4; |
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$REG_S="sw"; |
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$REG_L="lw"; |
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$code=".set mips2\n"; |
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} |
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# Below is N32/64 register layout used in the original module. |
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# |
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($zero,$at,$v0,$v1)=map("\$$_",(0..3)); |
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($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11)); |
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($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25)); |
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($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23)); |
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($gp,$sp,$fp,$ra)=map("\$$_",(28..31)); |
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($ta0,$ta1,$ta2,$ta3)=($a4,$a5,$a6,$a7); |
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# |
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# No special adaptation is required for O32. NUBI on the other hand |
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# is treated by saving/restoring ($v1,$t0..$t3). |
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$gp=$v1 if ($flavour =~ /nubi/i); |
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$minus4=$v1; |
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$code.=<<___; |
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.rdata |
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.asciiz "mips3.s, Version 1.2" |
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.asciiz "MIPS II/III/IV ISA artwork by Andy Polyakov <appro\@fy.chalmers.se>" |
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.text |
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.set noat |
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.align 5 |
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.globl bn_mul_add_words |
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.ent bn_mul_add_words |
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bn_mul_add_words: |
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.set noreorder |
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bgtz $a2,bn_mul_add_words_internal |
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move $v0,$zero |
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jr $ra |
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move $a0,$v0 |
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.end bn_mul_add_words |
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.align 5 |
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.ent bn_mul_add_words_internal |
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bn_mul_add_words_internal: |
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___ |
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$code.=<<___ if ($flavour =~ /nubi/i); |
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.frame $sp,6*$SZREG,$ra |
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.mask 0x8000f008,-$SZREG |
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.set noreorder |
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$PTR_SUB $sp,6*$SZREG |
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$REG_S $ra,5*$SZREG($sp) |
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$REG_S $t3,4*$SZREG($sp) |
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$REG_S $t2,3*$SZREG($sp) |
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$REG_S $t1,2*$SZREG($sp) |
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$REG_S $t0,1*$SZREG($sp) |
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$REG_S $gp,0*$SZREG($sp) |
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___ |
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$code.=<<___; |
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.set reorder |
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li $minus4,-4 |
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and $ta0,$a2,$minus4 |
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beqz $ta0,.L_bn_mul_add_words_tail |
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|
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.L_bn_mul_add_words_loop: |
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$LD $t0,0($a1) |
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$MULTU $t0,$a3 |
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$LD $t1,0($a0) |
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$LD $t2,$BNSZ($a1) |
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$LD $t3,$BNSZ($a0) |
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$LD $ta0,2*$BNSZ($a1) |
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$LD $ta1,2*$BNSZ($a0) |
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$ADDU $t1,$v0 |
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sltu $v0,$t1,$v0 # All manuals say it "compares 32-bit |
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# values", but it seems to work fine |
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# even on 64-bit registers. |
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mflo $at |
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mfhi $t0 |
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$ADDU $t1,$at |
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$ADDU $v0,$t0 |
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$MULTU $t2,$a3 |
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sltu $at,$t1,$at |
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$ST $t1,0($a0) |
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$ADDU $v0,$at |
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|
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$LD $ta2,3*$BNSZ($a1) |
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$LD $ta3,3*$BNSZ($a0) |
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$ADDU $t3,$v0 |
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sltu $v0,$t3,$v0 |
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mflo $at |
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mfhi $t2 |
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$ADDU $t3,$at |
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$ADDU $v0,$t2 |
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$MULTU $ta0,$a3 |
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sltu $at,$t3,$at |
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$ST $t3,$BNSZ($a0) |
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$ADDU $v0,$at |
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|
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subu $a2,4 |
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$PTR_ADD $a0,4*$BNSZ |
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$PTR_ADD $a1,4*$BNSZ |
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$ADDU $ta1,$v0 |
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sltu $v0,$ta1,$v0 |
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mflo $at |
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mfhi $ta0 |
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$ADDU $ta1,$at |
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$ADDU $v0,$ta0 |
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$MULTU $ta2,$a3 |
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sltu $at,$ta1,$at |
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$ST $ta1,-2*$BNSZ($a0) |
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$ADDU $v0,$at |
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and $ta0,$a2,$minus4 |
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$ADDU $ta3,$v0 |
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sltu $v0,$ta3,$v0 |
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mflo $at |
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mfhi $ta2 |
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$ADDU $ta3,$at |
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$ADDU $v0,$ta2 |
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sltu $at,$ta3,$at |
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$ST $ta3,-$BNSZ($a0) |
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.set noreorder |
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bgtz $ta0,.L_bn_mul_add_words_loop |
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$ADDU $v0,$at |
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beqz $a2,.L_bn_mul_add_words_return |
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nop |
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.L_bn_mul_add_words_tail: |
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.set reorder |
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$LD $t0,0($a1) |
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$MULTU $t0,$a3 |
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$LD $t1,0($a0) |
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subu $a2,1 |
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$ADDU $t1,$v0 |
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sltu $v0,$t1,$v0 |
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mflo $at |
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mfhi $t0 |
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$ADDU $t1,$at |
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$ADDU $v0,$t0 |
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sltu $at,$t1,$at |
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$ST $t1,0($a0) |
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$ADDU $v0,$at |
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beqz $a2,.L_bn_mul_add_words_return |
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|
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$LD $t0,$BNSZ($a1) |
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$MULTU $t0,$a3 |
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$LD $t1,$BNSZ($a0) |
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subu $a2,1 |
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$ADDU $t1,$v0 |
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sltu $v0,$t1,$v0 |
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mflo $at |
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mfhi $t0 |
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$ADDU $t1,$at |
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$ADDU $v0,$t0 |
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sltu $at,$t1,$at |
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$ST $t1,$BNSZ($a0) |
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$ADDU $v0,$at |
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beqz $a2,.L_bn_mul_add_words_return |
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$LD $t0,2*$BNSZ($a1) |
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$MULTU $t0,$a3 |
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$LD $t1,2*$BNSZ($a0) |
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$ADDU $t1,$v0 |
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sltu $v0,$t1,$v0 |
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mflo $at |
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mfhi $t0 |
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$ADDU $t1,$at |
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$ADDU $v0,$t0 |
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sltu $at,$t1,$at |
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$ST $t1,2*$BNSZ($a0) |
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$ADDU $v0,$at |
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.L_bn_mul_add_words_return: |
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.set noreorder |
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___ |
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$code.=<<___ if ($flavour =~ /nubi/i); |
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$REG_L $t3,4*$SZREG($sp) |
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$REG_L $t2,3*$SZREG($sp) |
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$REG_L $t1,2*$SZREG($sp) |
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$REG_L $t0,1*$SZREG($sp) |
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$REG_L $gp,0*$SZREG($sp) |
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$PTR_ADD $sp,6*$SZREG |
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___ |
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$code.=<<___; |
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jr $ra |
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move $a0,$v0 |
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.end bn_mul_add_words_internal |
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.align 5 |
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.globl bn_mul_words |
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.ent bn_mul_words |
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bn_mul_words: |
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.set noreorder |
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bgtz $a2,bn_mul_words_internal |
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move $v0,$zero |
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jr $ra |
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move $a0,$v0 |
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.end bn_mul_words |
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.align 5 |
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.ent bn_mul_words_internal |
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bn_mul_words_internal: |
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___ |
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$code.=<<___ if ($flavour =~ /nubi/i); |
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.frame $sp,6*$SZREG,$ra |
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.mask 0x8000f008,-$SZREG |
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.set noreorder |
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$PTR_SUB $sp,6*$SZREG |
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$REG_S $ra,5*$SZREG($sp) |
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$REG_S $t3,4*$SZREG($sp) |
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$REG_S $t2,3*$SZREG($sp) |
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$REG_S $t1,2*$SZREG($sp) |
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$REG_S $t0,1*$SZREG($sp) |
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$REG_S $gp,0*$SZREG($sp) |
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___ |
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$code.=<<___; |
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.set reorder |
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li $minus4,-4 |
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and $ta0,$a2,$minus4 |
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beqz $ta0,.L_bn_mul_words_tail |
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.L_bn_mul_words_loop: |
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$LD $t0,0($a1) |
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$MULTU $t0,$a3 |
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$LD $t2,$BNSZ($a1) |
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$LD $ta0,2*$BNSZ($a1) |
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$LD $ta2,3*$BNSZ($a1) |
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mflo $at |
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mfhi $t0 |
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$ADDU $v0,$at |
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sltu $t1,$v0,$at |
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$MULTU $t2,$a3 |
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$ST $v0,0($a0) |
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$ADDU $v0,$t1,$t0 |
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|
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subu $a2,4 |
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$PTR_ADD $a0,4*$BNSZ |
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$PTR_ADD $a1,4*$BNSZ |
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mflo $at |
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mfhi $t2 |
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$ADDU $v0,$at |
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sltu $t3,$v0,$at |
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$MULTU $ta0,$a3 |
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$ST $v0,-3*$BNSZ($a0) |
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$ADDU $v0,$t3,$t2 |
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|
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mflo $at |
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mfhi $ta0 |
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$ADDU $v0,$at |
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sltu $ta1,$v0,$at |
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$MULTU $ta2,$a3 |
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$ST $v0,-2*$BNSZ($a0) |
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$ADDU $v0,$ta1,$ta0 |
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|
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and $ta0,$a2,$minus4 |
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mflo $at |
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mfhi $ta2 |
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$ADDU $v0,$at |
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sltu $ta3,$v0,$at |
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$ST $v0,-$BNSZ($a0) |
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.set noreorder |
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bgtz $ta0,.L_bn_mul_words_loop |
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$ADDU $v0,$ta3,$ta2 |
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|
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beqz $a2,.L_bn_mul_words_return |
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nop |
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.L_bn_mul_words_tail: |
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.set reorder |
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$LD $t0,0($a1) |
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$MULTU $t0,$a3 |
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subu $a2,1 |
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mflo $at |
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mfhi $t0 |
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$ADDU $v0,$at |
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sltu $t1,$v0,$at |
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$ST $v0,0($a0) |
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$ADDU $v0,$t1,$t0 |
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beqz $a2,.L_bn_mul_words_return |
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|
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$LD $t0,$BNSZ($a1) |
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$MULTU $t0,$a3 |
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subu $a2,1 |
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mflo $at |
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mfhi $t0 |
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$ADDU $v0,$at |
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sltu $t1,$v0,$at |
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$ST $v0,$BNSZ($a0) |
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$ADDU $v0,$t1,$t0 |
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beqz $a2,.L_bn_mul_words_return |
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|
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$LD $t0,2*$BNSZ($a1) |
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$MULTU $t0,$a3 |
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mflo $at |
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mfhi $t0 |
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$ADDU $v0,$at |
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sltu $t1,$v0,$at |
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$ST $v0,2*$BNSZ($a0) |
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$ADDU $v0,$t1,$t0 |
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|
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.L_bn_mul_words_return: |
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.set noreorder |
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___ |
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$code.=<<___ if ($flavour =~ /nubi/i); |
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$REG_L $t3,4*$SZREG($sp) |
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$REG_L $t2,3*$SZREG($sp) |
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$REG_L $t1,2*$SZREG($sp) |
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$REG_L $t0,1*$SZREG($sp) |
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$REG_L $gp,0*$SZREG($sp) |
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$PTR_ADD $sp,6*$SZREG |
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___ |
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$code.=<<___; |
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jr $ra |
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move $a0,$v0 |
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.end bn_mul_words_internal |
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|
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.align 5 |
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.globl bn_sqr_words |
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.ent bn_sqr_words |
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bn_sqr_words: |
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.set noreorder |
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bgtz $a2,bn_sqr_words_internal |
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move $v0,$zero |
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jr $ra |
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move $a0,$v0 |
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.end bn_sqr_words |
|
|
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.align 5 |
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.ent bn_sqr_words_internal |
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bn_sqr_words_internal: |
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___ |
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$code.=<<___ if ($flavour =~ /nubi/i); |
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.frame $sp,6*$SZREG,$ra |
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.mask 0x8000f008,-$SZREG |
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.set noreorder |
|
$PTR_SUB $sp,6*$SZREG |
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$REG_S $ra,5*$SZREG($sp) |
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$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
.set reorder |
|
li $minus4,-4 |
|
and $ta0,$a2,$minus4 |
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beqz $ta0,.L_bn_sqr_words_tail |
|
|
|
.L_bn_sqr_words_loop: |
|
$LD $t0,0($a1) |
|
$MULTU $t0,$t0 |
|
$LD $t2,$BNSZ($a1) |
|
$LD $ta0,2*$BNSZ($a1) |
|
$LD $ta2,3*$BNSZ($a1) |
|
mflo $t1 |
|
mfhi $t0 |
|
$ST $t1,0($a0) |
|
$ST $t0,$BNSZ($a0) |
|
|
|
$MULTU $t2,$t2 |
|
subu $a2,4 |
|
$PTR_ADD $a0,8*$BNSZ |
|
$PTR_ADD $a1,4*$BNSZ |
|
mflo $t3 |
|
mfhi $t2 |
|
$ST $t3,-6*$BNSZ($a0) |
|
$ST $t2,-5*$BNSZ($a0) |
|
|
|
$MULTU $ta0,$ta0 |
|
mflo $ta1 |
|
mfhi $ta0 |
|
$ST $ta1,-4*$BNSZ($a0) |
|
$ST $ta0,-3*$BNSZ($a0) |
|
|
|
|
|
$MULTU $ta2,$ta2 |
|
and $ta0,$a2,$minus4 |
|
mflo $ta3 |
|
mfhi $ta2 |
|
$ST $ta3,-2*$BNSZ($a0) |
|
|
|
.set noreorder |
|
bgtz $ta0,.L_bn_sqr_words_loop |
|
$ST $ta2,-$BNSZ($a0) |
|
|
|
beqz $a2,.L_bn_sqr_words_return |
|
nop |
|
|
|
.L_bn_sqr_words_tail: |
|
.set reorder |
|
$LD $t0,0($a1) |
|
$MULTU $t0,$t0 |
|
subu $a2,1 |
|
mflo $t1 |
|
mfhi $t0 |
|
$ST $t1,0($a0) |
|
$ST $t0,$BNSZ($a0) |
|
beqz $a2,.L_bn_sqr_words_return |
|
|
|
$LD $t0,$BNSZ($a1) |
|
$MULTU $t0,$t0 |
|
subu $a2,1 |
|
mflo $t1 |
|
mfhi $t0 |
|
$ST $t1,2*$BNSZ($a0) |
|
$ST $t0,3*$BNSZ($a0) |
|
beqz $a2,.L_bn_sqr_words_return |
|
|
|
$LD $t0,2*$BNSZ($a1) |
|
$MULTU $t0,$t0 |
|
mflo $t1 |
|
mfhi $t0 |
|
$ST $t1,4*$BNSZ($a0) |
|
$ST $t0,5*$BNSZ($a0) |
|
|
|
.L_bn_sqr_words_return: |
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
jr $ra |
|
move $a0,$v0 |
|
|
|
.end bn_sqr_words_internal |
|
|
|
.align 5 |
|
.globl bn_add_words |
|
.ent bn_add_words |
|
bn_add_words: |
|
.set noreorder |
|
bgtz $a3,bn_add_words_internal |
|
move $v0,$zero |
|
jr $ra |
|
move $a0,$v0 |
|
.end bn_add_words |
|
|
|
.align 5 |
|
.ent bn_add_words_internal |
|
bn_add_words_internal: |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
.frame $sp,6*$SZREG,$ra |
|
.mask 0x8000f008,-$SZREG |
|
.set noreorder |
|
$PTR_SUB $sp,6*$SZREG |
|
$REG_S $ra,5*$SZREG($sp) |
|
$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
.set reorder |
|
li $minus4,-4 |
|
and $at,$a3,$minus4 |
|
beqz $at,.L_bn_add_words_tail |
|
|
|
.L_bn_add_words_loop: |
|
$LD $t0,0($a1) |
|
$LD $ta0,0($a2) |
|
subu $a3,4 |
|
$LD $t1,$BNSZ($a1) |
|
and $at,$a3,$minus4 |
|
$LD $t2,2*$BNSZ($a1) |
|
$PTR_ADD $a2,4*$BNSZ |
|
$LD $t3,3*$BNSZ($a1) |
|
$PTR_ADD $a0,4*$BNSZ |
|
$LD $ta1,-3*$BNSZ($a2) |
|
$PTR_ADD $a1,4*$BNSZ |
|
$LD $ta2,-2*$BNSZ($a2) |
|
$LD $ta3,-$BNSZ($a2) |
|
$ADDU $ta0,$t0 |
|
sltu $t8,$ta0,$t0 |
|
$ADDU $t0,$ta0,$v0 |
|
sltu $v0,$t0,$ta0 |
|
$ST $t0,-4*$BNSZ($a0) |
|
$ADDU $v0,$t8 |
|
|
|
$ADDU $ta1,$t1 |
|
sltu $t9,$ta1,$t1 |
|
$ADDU $t1,$ta1,$v0 |
|
sltu $v0,$t1,$ta1 |
|
$ST $t1,-3*$BNSZ($a0) |
|
$ADDU $v0,$t9 |
|
|
|
$ADDU $ta2,$t2 |
|
sltu $t8,$ta2,$t2 |
|
$ADDU $t2,$ta2,$v0 |
|
sltu $v0,$t2,$ta2 |
|
$ST $t2,-2*$BNSZ($a0) |
|
$ADDU $v0,$t8 |
|
|
|
$ADDU $ta3,$t3 |
|
sltu $t9,$ta3,$t3 |
|
$ADDU $t3,$ta3,$v0 |
|
sltu $v0,$t3,$ta3 |
|
$ST $t3,-$BNSZ($a0) |
|
|
|
.set noreorder |
|
bgtz $at,.L_bn_add_words_loop |
|
$ADDU $v0,$t9 |
|
|
|
beqz $a3,.L_bn_add_words_return |
|
nop |
|
|
|
.L_bn_add_words_tail: |
|
.set reorder |
|
$LD $t0,0($a1) |
|
$LD $ta0,0($a2) |
|
$ADDU $ta0,$t0 |
|
subu $a3,1 |
|
sltu $t8,$ta0,$t0 |
|
$ADDU $t0,$ta0,$v0 |
|
sltu $v0,$t0,$ta0 |
|
$ST $t0,0($a0) |
|
$ADDU $v0,$t8 |
|
beqz $a3,.L_bn_add_words_return |
|
|
|
$LD $t1,$BNSZ($a1) |
|
$LD $ta1,$BNSZ($a2) |
|
$ADDU $ta1,$t1 |
|
subu $a3,1 |
|
sltu $t9,$ta1,$t1 |
|
$ADDU $t1,$ta1,$v0 |
|
sltu $v0,$t1,$ta1 |
|
$ST $t1,$BNSZ($a0) |
|
$ADDU $v0,$t9 |
|
beqz $a3,.L_bn_add_words_return |
|
|
|
$LD $t2,2*$BNSZ($a1) |
|
$LD $ta2,2*$BNSZ($a2) |
|
$ADDU $ta2,$t2 |
|
sltu $t8,$ta2,$t2 |
|
$ADDU $t2,$ta2,$v0 |
|
sltu $v0,$t2,$ta2 |
|
$ST $t2,2*$BNSZ($a0) |
|
$ADDU $v0,$t8 |
|
|
|
.L_bn_add_words_return: |
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
jr $ra |
|
move $a0,$v0 |
|
|
|
.end bn_add_words_internal |
|
|
|
.align 5 |
|
.globl bn_sub_words |
|
.ent bn_sub_words |
|
bn_sub_words: |
|
.set noreorder |
|
bgtz $a3,bn_sub_words_internal |
|
move $v0,$zero |
|
jr $ra |
|
move $a0,$zero |
|
.end bn_sub_words |
|
|
|
.align 5 |
|
.ent bn_sub_words_internal |
|
bn_sub_words_internal: |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
.frame $sp,6*$SZREG,$ra |
|
.mask 0x8000f008,-$SZREG |
|
.set noreorder |
|
$PTR_SUB $sp,6*$SZREG |
|
$REG_S $ra,5*$SZREG($sp) |
|
$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
.set reorder |
|
li $minus4,-4 |
|
and $at,$a3,$minus4 |
|
beqz $at,.L_bn_sub_words_tail |
|
|
|
.L_bn_sub_words_loop: |
|
$LD $t0,0($a1) |
|
$LD $ta0,0($a2) |
|
subu $a3,4 |
|
$LD $t1,$BNSZ($a1) |
|
and $at,$a3,$minus4 |
|
$LD $t2,2*$BNSZ($a1) |
|
$PTR_ADD $a2,4*$BNSZ |
|
$LD $t3,3*$BNSZ($a1) |
|
$PTR_ADD $a0,4*$BNSZ |
|
$LD $ta1,-3*$BNSZ($a2) |
|
$PTR_ADD $a1,4*$BNSZ |
|
$LD $ta2,-2*$BNSZ($a2) |
|
$LD $ta3,-$BNSZ($a2) |
|
sltu $t8,$t0,$ta0 |
|
$SUBU $ta0,$t0,$ta0 |
|
$SUBU $t0,$ta0,$v0 |
|
sgtu $v0,$t0,$ta0 |
|
$ST $t0,-4*$BNSZ($a0) |
|
$ADDU $v0,$t8 |
|
|
|
sltu $t9,$t1,$ta1 |
|
$SUBU $ta1,$t1,$ta1 |
|
$SUBU $t1,$ta1,$v0 |
|
sgtu $v0,$t1,$ta1 |
|
$ST $t1,-3*$BNSZ($a0) |
|
$ADDU $v0,$t9 |
|
|
|
|
|
sltu $t8,$t2,$ta2 |
|
$SUBU $ta2,$t2,$ta2 |
|
$SUBU $t2,$ta2,$v0 |
|
sgtu $v0,$t2,$ta2 |
|
$ST $t2,-2*$BNSZ($a0) |
|
$ADDU $v0,$t8 |
|
|
|
sltu $t9,$t3,$ta3 |
|
$SUBU $ta3,$t3,$ta3 |
|
$SUBU $t3,$ta3,$v0 |
|
sgtu $v0,$t3,$ta3 |
|
$ST $t3,-$BNSZ($a0) |
|
|
|
.set noreorder |
|
bgtz $at,.L_bn_sub_words_loop |
|
$ADDU $v0,$t9 |
|
|
|
beqz $a3,.L_bn_sub_words_return |
|
nop |
|
|
|
.L_bn_sub_words_tail: |
|
.set reorder |
|
$LD $t0,0($a1) |
|
$LD $ta0,0($a2) |
|
subu $a3,1 |
|
sltu $t8,$t0,$ta0 |
|
$SUBU $ta0,$t0,$ta0 |
|
$SUBU $t0,$ta0,$v0 |
|
sgtu $v0,$t0,$ta0 |
|
$ST $t0,0($a0) |
|
$ADDU $v0,$t8 |
|
beqz $a3,.L_bn_sub_words_return |
|
|
|
$LD $t1,$BNSZ($a1) |
|
subu $a3,1 |
|
$LD $ta1,$BNSZ($a2) |
|
sltu $t9,$t1,$ta1 |
|
$SUBU $ta1,$t1,$ta1 |
|
$SUBU $t1,$ta1,$v0 |
|
sgtu $v0,$t1,$ta1 |
|
$ST $t1,$BNSZ($a0) |
|
$ADDU $v0,$t9 |
|
beqz $a3,.L_bn_sub_words_return |
|
|
|
$LD $t2,2*$BNSZ($a1) |
|
$LD $ta2,2*$BNSZ($a2) |
|
sltu $t8,$t2,$ta2 |
|
$SUBU $ta2,$t2,$ta2 |
|
$SUBU $t2,$ta2,$v0 |
|
sgtu $v0,$t2,$ta2 |
|
$ST $t2,2*$BNSZ($a0) |
|
$ADDU $v0,$t8 |
|
|
|
.L_bn_sub_words_return: |
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
jr $ra |
|
move $a0,$v0 |
|
.end bn_sub_words_internal |
|
|
|
.align 5 |
|
.globl bn_div_3_words |
|
.ent bn_div_3_words |
|
bn_div_3_words: |
|
.set noreorder |
|
move $a3,$a0 # we know that bn_div_words does not |
|
# touch $a3, $ta2, $ta3 and preserves $a2 |
|
# so that we can save two arguments |
|
# and return address in registers |
|
# instead of stack:-) |
|
|
|
$LD $a0,($a3) |
|
move $ta2,$a1 |
|
bne $a0,$a2,bn_div_3_words_internal |
|
$LD $a1,-$BNSZ($a3) |
|
li $v0,-1 |
|
jr $ra |
|
move $a0,$v0 |
|
.end bn_div_3_words |
|
|
|
.align 5 |
|
.ent bn_div_3_words_internal |
|
bn_div_3_words_internal: |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
.frame $sp,6*$SZREG,$ra |
|
.mask 0x8000f008,-$SZREG |
|
.set noreorder |
|
$PTR_SUB $sp,6*$SZREG |
|
$REG_S $ra,5*$SZREG($sp) |
|
$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
.set reorder |
|
move $ta3,$ra |
|
bal bn_div_words_internal |
|
move $ra,$ta3 |
|
$MULTU $ta2,$v0 |
|
$LD $t2,-2*$BNSZ($a3) |
|
move $ta0,$zero |
|
mfhi $t1 |
|
mflo $t0 |
|
sltu $t8,$t1,$a1 |
|
.L_bn_div_3_words_inner_loop: |
|
bnez $t8,.L_bn_div_3_words_inner_loop_done |
|
sgeu $at,$t2,$t0 |
|
seq $t9,$t1,$a1 |
|
and $at,$t9 |
|
sltu $t3,$t0,$ta2 |
|
$ADDU $a1,$a2 |
|
$SUBU $t1,$t3 |
|
$SUBU $t0,$ta2 |
|
sltu $t8,$t1,$a1 |
|
sltu $ta0,$a1,$a2 |
|
or $t8,$ta0 |
|
.set noreorder |
|
beqz $at,.L_bn_div_3_words_inner_loop |
|
$SUBU $v0,1 |
|
$ADDU $v0,1 |
|
.set reorder |
|
.L_bn_div_3_words_inner_loop_done: |
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
jr $ra |
|
move $a0,$v0 |
|
.end bn_div_3_words_internal |
|
|
|
.align 5 |
|
.globl bn_div_words |
|
.ent bn_div_words |
|
bn_div_words: |
|
.set noreorder |
|
bnez $a2,bn_div_words_internal |
|
li $v0,-1 # I would rather signal div-by-zero |
|
# which can be done with 'break 7' |
|
jr $ra |
|
move $a0,$v0 |
|
.end bn_div_words |
|
|
|
.align 5 |
|
.ent bn_div_words_internal |
|
bn_div_words_internal: |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
.frame $sp,6*$SZREG,$ra |
|
.mask 0x8000f008,-$SZREG |
|
.set noreorder |
|
$PTR_SUB $sp,6*$SZREG |
|
$REG_S $ra,5*$SZREG($sp) |
|
$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
move $v1,$zero |
|
bltz $a2,.L_bn_div_words_body |
|
move $t9,$v1 |
|
$SLL $a2,1 |
|
bgtz $a2,.-4 |
|
addu $t9,1 |
|
|
|
.set reorder |
|
negu $t1,$t9 |
|
li $t2,-1 |
|
$SLL $t2,$t1 |
|
and $t2,$a0 |
|
$SRL $at,$a1,$t1 |
|
.set noreorder |
|
beqz $t2,.+12 |
|
nop |
|
break 6 # signal overflow |
|
.set reorder |
|
$SLL $a0,$t9 |
|
$SLL $a1,$t9 |
|
or $a0,$at |
|
___ |
|
$QT=$ta0; |
|
$HH=$ta1; |
|
$DH=$v1; |
|
$code.=<<___; |
|
.L_bn_div_words_body: |
|
$SRL $DH,$a2,4*$BNSZ # bits |
|
sgeu $at,$a0,$a2 |
|
.set noreorder |
|
beqz $at,.+12 |
|
nop |
|
$SUBU $a0,$a2 |
|
.set reorder |
|
|
|
li $QT,-1 |
|
$SRL $HH,$a0,4*$BNSZ # bits |
|
$SRL $QT,4*$BNSZ # q=0xffffffff |
|
beq $DH,$HH,.L_bn_div_words_skip_div1 |
|
$DIVU $zero,$a0,$DH |
|
mflo $QT |
|
.L_bn_div_words_skip_div1: |
|
$MULTU $a2,$QT |
|
$SLL $t3,$a0,4*$BNSZ # bits |
|
$SRL $at,$a1,4*$BNSZ # bits |
|
or $t3,$at |
|
mflo $t0 |
|
mfhi $t1 |
|
.L_bn_div_words_inner_loop1: |
|
sltu $t2,$t3,$t0 |
|
seq $t8,$HH,$t1 |
|
sltu $at,$HH,$t1 |
|
and $t2,$t8 |
|
sltu $v0,$t0,$a2 |
|
or $at,$t2 |
|
.set noreorder |
|
beqz $at,.L_bn_div_words_inner_loop1_done |
|
$SUBU $t1,$v0 |
|
$SUBU $t0,$a2 |
|
b .L_bn_div_words_inner_loop1 |
|
$SUBU $QT,1 |
|
.set reorder |
|
.L_bn_div_words_inner_loop1_done: |
|
|
|
$SLL $a1,4*$BNSZ # bits |
|
$SUBU $a0,$t3,$t0 |
|
$SLL $v0,$QT,4*$BNSZ # bits |
|
|
|
li $QT,-1 |
|
$SRL $HH,$a0,4*$BNSZ # bits |
|
$SRL $QT,4*$BNSZ # q=0xffffffff |
|
beq $DH,$HH,.L_bn_div_words_skip_div2 |
|
$DIVU $zero,$a0,$DH |
|
mflo $QT |
|
.L_bn_div_words_skip_div2: |
|
$MULTU $a2,$QT |
|
$SLL $t3,$a0,4*$BNSZ # bits |
|
$SRL $at,$a1,4*$BNSZ # bits |
|
or $t3,$at |
|
mflo $t0 |
|
mfhi $t1 |
|
.L_bn_div_words_inner_loop2: |
|
sltu $t2,$t3,$t0 |
|
seq $t8,$HH,$t1 |
|
sltu $at,$HH,$t1 |
|
and $t2,$t8 |
|
sltu $v1,$t0,$a2 |
|
or $at,$t2 |
|
.set noreorder |
|
beqz $at,.L_bn_div_words_inner_loop2_done |
|
$SUBU $t1,$v1 |
|
$SUBU $t0,$a2 |
|
b .L_bn_div_words_inner_loop2 |
|
$SUBU $QT,1 |
|
.set reorder |
|
.L_bn_div_words_inner_loop2_done: |
|
|
|
$SUBU $a0,$t3,$t0 |
|
or $v0,$QT |
|
$SRL $v1,$a0,$t9 # $v1 contains remainder if anybody wants it |
|
$SRL $a2,$t9 # restore $a2 |
|
|
|
.set noreorder |
|
move $a1,$v1 |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
jr $ra |
|
move $a0,$v0 |
|
.end bn_div_words_internal |
|
___ |
|
undef $HH; undef $QT; undef $DH; |
|
|
|
($a_0,$a_1,$a_2,$a_3)=($t0,$t1,$t2,$t3); |
|
($b_0,$b_1,$b_2,$b_3)=($ta0,$ta1,$ta2,$ta3); |
|
|
|
($a_4,$a_5,$a_6,$a_7)=($s0,$s2,$s4,$a1); # once we load a[7], no use for $a1 |
|
($b_4,$b_5,$b_6,$b_7)=($s1,$s3,$s5,$a2); # once we load b[7], no use for $a2 |
|
|
|
($t_1,$t_2,$c_1,$c_2,$c_3)=($t8,$t9,$v0,$v1,$a3); |
|
|
|
$code.=<<___; |
|
|
|
.align 5 |
|
.globl bn_mul_comba8 |
|
.ent bn_mul_comba8 |
|
bn_mul_comba8: |
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
.frame $sp,12*$SZREG,$ra |
|
.mask 0x803ff008,-$SZREG |
|
$PTR_SUB $sp,12*$SZREG |
|
$REG_S $ra,11*$SZREG($sp) |
|
$REG_S $s5,10*$SZREG($sp) |
|
$REG_S $s4,9*$SZREG($sp) |
|
$REG_S $s3,8*$SZREG($sp) |
|
$REG_S $s2,7*$SZREG($sp) |
|
$REG_S $s1,6*$SZREG($sp) |
|
$REG_S $s0,5*$SZREG($sp) |
|
$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___ if ($flavour !~ /nubi/i); |
|
.frame $sp,6*$SZREG,$ra |
|
.mask 0x003f0000,-$SZREG |
|
$PTR_SUB $sp,6*$SZREG |
|
$REG_S $s5,5*$SZREG($sp) |
|
$REG_S $s4,4*$SZREG($sp) |
|
$REG_S $s3,3*$SZREG($sp) |
|
$REG_S $s2,2*$SZREG($sp) |
|
$REG_S $s1,1*$SZREG($sp) |
|
$REG_S $s0,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
|
|
.set reorder |
|
$LD $a_0,0($a1) # If compiled with -mips3 option on |
|
# R5000 box assembler barks on this |
|
# 1ine with "should not have mult/div |
|
# as last instruction in bb (R10K |
|
# bug)" warning. If anybody out there |
|
# has a clue about how to circumvent |
|
# this do send me a note. |
|
# <appro\@fy.chalmers.se> |
|
|
|
$LD $b_0,0($a2) |
|
$LD $a_1,$BNSZ($a1) |
|
$LD $a_2,2*$BNSZ($a1) |
|
$MULTU $a_0,$b_0 # mul_add_c(a[0],b[0],c1,c2,c3); |
|
$LD $a_3,3*$BNSZ($a1) |
|
$LD $b_1,$BNSZ($a2) |
|
$LD $b_2,2*$BNSZ($a2) |
|
$LD $b_3,3*$BNSZ($a2) |
|
mflo $c_1 |
|
mfhi $c_2 |
|
|
|
$LD $a_4,4*$BNSZ($a1) |
|
$LD $a_5,5*$BNSZ($a1) |
|
$MULTU $a_0,$b_1 # mul_add_c(a[0],b[1],c2,c3,c1); |
|
$LD $a_6,6*$BNSZ($a1) |
|
$LD $a_7,7*$BNSZ($a1) |
|
$LD $b_4,4*$BNSZ($a2) |
|
$LD $b_5,5*$BNSZ($a2) |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_1,$b_0 # mul_add_c(a[1],b[0],c2,c3,c1); |
|
$ADDU $c_3,$t_2,$at |
|
$LD $b_6,6*$BNSZ($a2) |
|
$LD $b_7,7*$BNSZ($a2) |
|
$ST $c_1,0($a0) # r[0]=c1; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_2,$b_0 # mul_add_c(a[2],b[0],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $c_1,$c_3,$t_2 |
|
$ST $c_2,$BNSZ($a0) # r[1]=c2; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_1,$b_1 # mul_add_c(a[1],b[1],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_0,$b_2 # mul_add_c(a[0],b[2],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $c_2,$c_1,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_0,$b_3 # mul_add_c(a[0],b[3],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,2*$BNSZ($a0) # r[2]=c3; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_1,$b_2 # mul_add_c(a[1],b[2],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $c_3,$c_2,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_2,$b_1 # mul_add_c(a[2],b[1],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_3,$b_0 # mul_add_c(a[3],b[0],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_4,$b_0 # mul_add_c(a[4],b[0],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
$ST $c_1,3*$BNSZ($a0) # r[3]=c1; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_3,$b_1 # mul_add_c(a[3],b[1],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $c_1,$c_3,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_2,$b_2 # mul_add_c(a[2],b[2],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_1,$b_3 # mul_add_c(a[1],b[3],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_0,$b_4 # mul_add_c(a[0],b[4],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_0,$b_5 # mul_add_c(a[0],b[5],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
$ST $c_2,4*$BNSZ($a0) # r[4]=c2; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_1,$b_4 # mul_add_c(a[1],b[4],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $c_2,$c_1,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_2,$b_3 # mul_add_c(a[2],b[3],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_3,$b_2 # mul_add_c(a[3],b[2],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_4,$b_1 # mul_add_c(a[4],b[1],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_5,$b_0 # mul_add_c(a[5],b[0],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_6,$b_0 # mul_add_c(a[6],b[0],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,5*$BNSZ($a0) # r[5]=c3; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_5,$b_1 # mul_add_c(a[5],b[1],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $c_3,$c_2,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_4,$b_2 # mul_add_c(a[4],b[2],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_3,$b_3 # mul_add_c(a[3],b[3],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_2,$b_4 # mul_add_c(a[2],b[4],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_1,$b_5 # mul_add_c(a[1],b[5],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_0,$b_6 # mul_add_c(a[0],b[6],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_0,$b_7 # mul_add_c(a[0],b[7],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
$ST $c_1,6*$BNSZ($a0) # r[6]=c1; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_1,$b_6 # mul_add_c(a[1],b[6],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $c_1,$c_3,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_2,$b_5 # mul_add_c(a[2],b[5],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_3,$b_4 # mul_add_c(a[3],b[4],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_4,$b_3 # mul_add_c(a[4],b[3],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_5,$b_2 # mul_add_c(a[5],b[2],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_6,$b_1 # mul_add_c(a[6],b[1],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_7,$b_0 # mul_add_c(a[7],b[0],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_7,$b_1 # mul_add_c(a[7],b[1],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
$ST $c_2,7*$BNSZ($a0) # r[7]=c2; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_6,$b_2 # mul_add_c(a[6],b[2],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $c_2,$c_1,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_5,$b_3 # mul_add_c(a[5],b[3],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_4,$b_4 # mul_add_c(a[4],b[4],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_3,$b_5 # mul_add_c(a[3],b[5],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_2,$b_6 # mul_add_c(a[2],b[6],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_1,$b_7 # mul_add_c(a[1],b[7],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_2,$b_7 # mul_add_c(a[2],b[7],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,8*$BNSZ($a0) # r[8]=c3; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_3,$b_6 # mul_add_c(a[3],b[6],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $c_3,$c_2,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_4,$b_5 # mul_add_c(a[4],b[5],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_5,$b_4 # mul_add_c(a[5],b[4],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_6,$b_3 # mul_add_c(a[6],b[3],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_7,$b_2 # mul_add_c(a[7],b[2],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_7,$b_3 # mul_add_c(a[7],b[3],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
$ST $c_1,9*$BNSZ($a0) # r[9]=c1; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_6,$b_4 # mul_add_c(a[6],b[4],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $c_1,$c_3,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_5,$b_5 # mul_add_c(a[5],b[5],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_4,$b_6 # mul_add_c(a[4],b[6],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_3,$b_7 # mul_add_c(a[3],b[7],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_4,$b_7 # mul_add_c(a[4],b[7],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
$ST $c_2,10*$BNSZ($a0) # r[10]=c2; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_5,$b_6 # mul_add_c(a[5],b[6],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $c_2,$c_1,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_6,$b_5 # mul_add_c(a[6],b[5],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_7,$b_4 # mul_add_c(a[7],b[4],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_7,$b_5 # mul_add_c(a[7],b[5],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,11*$BNSZ($a0) # r[11]=c3; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_6,$b_6 # mul_add_c(a[6],b[6],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $c_3,$c_2,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_5,$b_7 # mul_add_c(a[5],b[7],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_6,$b_7 # mul_add_c(a[6],b[7],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
$ST $c_1,12*$BNSZ($a0) # r[12]=c1; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_7,$b_6 # mul_add_c(a[7],b[6],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $c_1,$c_3,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_7,$b_7 # mul_add_c(a[7],b[7],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
$ST $c_2,13*$BNSZ($a0) # r[13]=c2; |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
$ST $c_3,14*$BNSZ($a0) # r[14]=c3; |
|
$ST $c_1,15*$BNSZ($a0) # r[15]=c1; |
|
|
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $s5,10*$SZREG($sp) |
|
$REG_L $s4,9*$SZREG($sp) |
|
$REG_L $s3,8*$SZREG($sp) |
|
$REG_L $s2,7*$SZREG($sp) |
|
$REG_L $s1,6*$SZREG($sp) |
|
$REG_L $s0,5*$SZREG($sp) |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
jr $ra |
|
$PTR_ADD $sp,12*$SZREG |
|
___ |
|
$code.=<<___ if ($flavour !~ /nubi/i); |
|
$REG_L $s5,5*$SZREG($sp) |
|
$REG_L $s4,4*$SZREG($sp) |
|
$REG_L $s3,3*$SZREG($sp) |
|
$REG_L $s2,2*$SZREG($sp) |
|
$REG_L $s1,1*$SZREG($sp) |
|
$REG_L $s0,0*$SZREG($sp) |
|
jr $ra |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
.end bn_mul_comba8 |
|
|
|
.align 5 |
|
.globl bn_mul_comba4 |
|
.ent bn_mul_comba4 |
|
bn_mul_comba4: |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
.frame $sp,6*$SZREG,$ra |
|
.mask 0x8000f008,-$SZREG |
|
.set noreorder |
|
$PTR_SUB $sp,6*$SZREG |
|
$REG_S $ra,5*$SZREG($sp) |
|
$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
.set reorder |
|
$LD $a_0,0($a1) |
|
$LD $b_0,0($a2) |
|
$LD $a_1,$BNSZ($a1) |
|
$LD $a_2,2*$BNSZ($a1) |
|
$MULTU $a_0,$b_0 # mul_add_c(a[0],b[0],c1,c2,c3); |
|
$LD $a_3,3*$BNSZ($a1) |
|
$LD $b_1,$BNSZ($a2) |
|
$LD $b_2,2*$BNSZ($a2) |
|
$LD $b_3,3*$BNSZ($a2) |
|
mflo $c_1 |
|
mfhi $c_2 |
|
$ST $c_1,0($a0) |
|
|
|
$MULTU $a_0,$b_1 # mul_add_c(a[0],b[1],c2,c3,c1); |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_1,$b_0 # mul_add_c(a[1],b[0],c2,c3,c1); |
|
$ADDU $c_3,$t_2,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_2,$b_0 # mul_add_c(a[2],b[0],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $c_1,$c_3,$t_2 |
|
$ST $c_2,$BNSZ($a0) |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_1,$b_1 # mul_add_c(a[1],b[1],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_0,$b_2 # mul_add_c(a[0],b[2],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $c_2,$c_1,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_0,$b_3 # mul_add_c(a[0],b[3],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,2*$BNSZ($a0) |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_1,$b_2 # mul_add_c(a[1],b[2],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $c_3,$c_2,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_2,$b_1 # mul_add_c(a[2],b[1],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_3,$b_0 # mul_add_c(a[3],b[0],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_3,$b_1 # mul_add_c(a[3],b[1],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
$ST $c_1,3*$BNSZ($a0) |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_2,$b_2 # mul_add_c(a[2],b[2],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $c_1,$c_3,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_1,$b_3 # mul_add_c(a[1],b[3],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_2,$b_3 # mul_add_c(a[2],b[3],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
$ST $c_2,4*$BNSZ($a0) |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_3,$b_2 # mul_add_c(a[3],b[2],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $c_2,$c_1,$t_2 |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_3,$b_3 # mul_add_c(a[3],b[3],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,5*$BNSZ($a0) |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
$ST $c_1,6*$BNSZ($a0) |
|
$ST $c_2,7*$BNSZ($a0) |
|
|
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
jr $ra |
|
nop |
|
.end bn_mul_comba4 |
|
___ |
|
|
|
($a_4,$a_5,$a_6,$a_7)=($b_0,$b_1,$b_2,$b_3); |
|
|
|
sub add_c2 () { |
|
my ($hi,$lo,$c0,$c1,$c2, |
|
$warm, # !$warm denotes first call with specific sequence of |
|
# $c_[XYZ] when there is no Z-carry to accumulate yet; |
|
$an,$bn # these two are arguments for multiplication which |
|
# result is used in *next* step [which is why it's |
|
# commented as "forward multiplication" below]; |
|
)=@_; |
|
$code.=<<___; |
|
mflo $lo |
|
mfhi $hi |
|
$ADDU $c0,$lo |
|
sltu $at,$c0,$lo |
|
$MULTU $an,$bn # forward multiplication |
|
$ADDU $c0,$lo |
|
$ADDU $at,$hi |
|
sltu $lo,$c0,$lo |
|
$ADDU $c1,$at |
|
$ADDU $hi,$lo |
|
___ |
|
$code.=<<___ if (!$warm); |
|
sltu $c2,$c1,$at |
|
$ADDU $c1,$hi |
|
sltu $hi,$c1,$hi |
|
$ADDU $c2,$hi |
|
___ |
|
$code.=<<___ if ($warm); |
|
sltu $at,$c1,$at |
|
$ADDU $c1,$hi |
|
$ADDU $c2,$at |
|
sltu $hi,$c1,$hi |
|
$ADDU $c2,$hi |
|
___ |
|
} |
|
|
|
$code.=<<___; |
|
|
|
.align 5 |
|
.globl bn_sqr_comba8 |
|
.ent bn_sqr_comba8 |
|
bn_sqr_comba8: |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
.frame $sp,6*$SZREG,$ra |
|
.mask 0x8000f008,-$SZREG |
|
.set noreorder |
|
$PTR_SUB $sp,6*$SZREG |
|
$REG_S $ra,5*$SZREG($sp) |
|
$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
.set reorder |
|
$LD $a_0,0($a1) |
|
$LD $a_1,$BNSZ($a1) |
|
$LD $a_2,2*$BNSZ($a1) |
|
$LD $a_3,3*$BNSZ($a1) |
|
|
|
$MULTU $a_0,$a_0 # mul_add_c(a[0],b[0],c1,c2,c3); |
|
$LD $a_4,4*$BNSZ($a1) |
|
$LD $a_5,5*$BNSZ($a1) |
|
$LD $a_6,6*$BNSZ($a1) |
|
$LD $a_7,7*$BNSZ($a1) |
|
mflo $c_1 |
|
mfhi $c_2 |
|
$ST $c_1,0($a0) |
|
|
|
$MULTU $a_0,$a_1 # mul_add_c2(a[0],b[1],c2,c3,c1); |
|
mflo $t_1 |
|
mfhi $t_2 |
|
slt $c_1,$t_2,$zero |
|
$SLL $t_2,1 |
|
$MULTU $a_2,$a_0 # mul_add_c2(a[2],b[0],c3,c1,c2); |
|
slt $a2,$t_1,$zero |
|
$ADDU $t_2,$a2 |
|
$SLL $t_1,1 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$ADDU $c_3,$t_2,$at |
|
$ST $c_2,$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,0, |
|
$a_1,$a_1); # mul_add_c(a[1],b[1],c3,c1,c2); |
|
$code.=<<___; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_0,$a_3 # mul_add_c2(a[0],b[3],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,2*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,0, |
|
$a_1,$a_2); # mul_add_c2(a[1],b[2],c1,c2,c3); |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,1, |
|
$a_4,$a_0); # mul_add_c2(a[4],b[0],c2,c3,c1); |
|
$code.=<<___; |
|
$ST $c_1,3*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,0, |
|
$a_3,$a_1); # mul_add_c2(a[3],b[1],c2,c3,c1); |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,1, |
|
$a_2,$a_2); # mul_add_c(a[2],b[2],c2,c3,c1); |
|
$code.=<<___; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_0,$a_5 # mul_add_c2(a[0],b[5],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
$ST $c_2,4*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,0, |
|
$a_1,$a_4); # mul_add_c2(a[1],b[4],c3,c1,c2); |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,1, |
|
$a_2,$a_3); # mul_add_c2(a[2],b[3],c3,c1,c2); |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,1, |
|
$a_6,$a_0); # mul_add_c2(a[6],b[0],c1,c2,c3); |
|
$code.=<<___; |
|
$ST $c_3,5*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,0, |
|
$a_5,$a_1); # mul_add_c2(a[5],b[1],c1,c2,c3); |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,1, |
|
$a_4,$a_2); # mul_add_c2(a[4],b[2],c1,c2,c3); |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,1, |
|
$a_3,$a_3); # mul_add_c(a[3],b[3],c1,c2,c3); |
|
$code.=<<___; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_0,$a_7 # mul_add_c2(a[0],b[7],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
$ST $c_1,6*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,0, |
|
$a_1,$a_6); # mul_add_c2(a[1],b[6],c2,c3,c1); |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,1, |
|
$a_2,$a_5); # mul_add_c2(a[2],b[5],c2,c3,c1); |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,1, |
|
$a_3,$a_4); # mul_add_c2(a[3],b[4],c2,c3,c1); |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,1, |
|
$a_7,$a_1); # mul_add_c2(a[7],b[1],c3,c1,c2); |
|
$code.=<<___; |
|
$ST $c_2,7*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,0, |
|
$a_6,$a_2); # mul_add_c2(a[6],b[2],c3,c1,c2); |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,1, |
|
$a_5,$a_3); # mul_add_c2(a[5],b[3],c3,c1,c2); |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,1, |
|
$a_4,$a_4); # mul_add_c(a[4],b[4],c3,c1,c2); |
|
$code.=<<___; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_2,$a_7 # mul_add_c2(a[2],b[7],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,8*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,0, |
|
$a_3,$a_6); # mul_add_c2(a[3],b[6],c1,c2,c3); |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,1, |
|
$a_4,$a_5); # mul_add_c2(a[4],b[5],c1,c2,c3); |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,1, |
|
$a_7,$a_3); # mul_add_c2(a[7],b[3],c2,c3,c1); |
|
$code.=<<___; |
|
$ST $c_1,9*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,0, |
|
$a_6,$a_4); # mul_add_c2(a[6],b[4],c2,c3,c1); |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,1, |
|
$a_5,$a_5); # mul_add_c(a[5],b[5],c2,c3,c1); |
|
$code.=<<___; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_4,$a_7 # mul_add_c2(a[4],b[7],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
$ST $c_2,10*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,0, |
|
$a_5,$a_6); # mul_add_c2(a[5],b[6],c3,c1,c2); |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,1, |
|
$a_7,$a_5); # mul_add_c2(a[7],b[5],c1,c2,c3); |
|
$code.=<<___; |
|
$ST $c_3,11*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,0, |
|
$a_6,$a_6); # mul_add_c(a[6],b[6],c1,c2,c3); |
|
$code.=<<___; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$MULTU $a_6,$a_7 # mul_add_c2(a[6],b[7],c2,c3,c1); |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
sltu $at,$c_2,$t_2 |
|
$ADDU $c_3,$at |
|
$ST $c_1,12*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,0, |
|
$a_7,$a_7); # mul_add_c(a[7],b[7],c3,c1,c2); |
|
$code.=<<___; |
|
$ST $c_2,13*$BNSZ($a0) |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
$ST $c_3,14*$BNSZ($a0) |
|
$ST $c_1,15*$BNSZ($a0) |
|
|
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
jr $ra |
|
nop |
|
.end bn_sqr_comba8 |
|
|
|
.align 5 |
|
.globl bn_sqr_comba4 |
|
.ent bn_sqr_comba4 |
|
bn_sqr_comba4: |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
.frame $sp,6*$SZREG,$ra |
|
.mask 0x8000f008,-$SZREG |
|
.set noreorder |
|
$PTR_SUB $sp,6*$SZREG |
|
$REG_S $ra,5*$SZREG($sp) |
|
$REG_S $t3,4*$SZREG($sp) |
|
$REG_S $t2,3*$SZREG($sp) |
|
$REG_S $t1,2*$SZREG($sp) |
|
$REG_S $t0,1*$SZREG($sp) |
|
$REG_S $gp,0*$SZREG($sp) |
|
___ |
|
$code.=<<___; |
|
.set reorder |
|
$LD $a_0,0($a1) |
|
$LD $a_1,$BNSZ($a1) |
|
$MULTU $a_0,$a_0 # mul_add_c(a[0],b[0],c1,c2,c3); |
|
$LD $a_2,2*$BNSZ($a1) |
|
$LD $a_3,3*$BNSZ($a1) |
|
mflo $c_1 |
|
mfhi $c_2 |
|
$ST $c_1,0($a0) |
|
|
|
$MULTU $a_0,$a_1 # mul_add_c2(a[0],b[1],c2,c3,c1); |
|
mflo $t_1 |
|
mfhi $t_2 |
|
slt $c_1,$t_2,$zero |
|
$SLL $t_2,1 |
|
$MULTU $a_2,$a_0 # mul_add_c2(a[2],b[0],c3,c1,c2); |
|
slt $a2,$t_1,$zero |
|
$ADDU $t_2,$a2 |
|
$SLL $t_1,1 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$ADDU $c_3,$t_2,$at |
|
$ST $c_2,$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,0, |
|
$a_1,$a_1); # mul_add_c(a[1],b[1],c3,c1,c2); |
|
$code.=<<___; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_3,$t_1 |
|
sltu $at,$c_3,$t_1 |
|
$MULTU $a_0,$a_3 # mul_add_c2(a[0],b[3],c1,c2,c3); |
|
$ADDU $t_2,$at |
|
$ADDU $c_1,$t_2 |
|
sltu $at,$c_1,$t_2 |
|
$ADDU $c_2,$at |
|
$ST $c_3,2*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,0, |
|
$a_1,$a_2); # mul_add_c2(a2[1],b[2],c1,c2,c3); |
|
&add_c2($t_2,$t_1,$c_1,$c_2,$c_3,1, |
|
$a_3,$a_1); # mul_add_c2(a[3],b[1],c2,c3,c1); |
|
$code.=<<___; |
|
$ST $c_1,3*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_2,$c_3,$c_1,0, |
|
$a_2,$a_2); # mul_add_c(a[2],b[2],c2,c3,c1); |
|
$code.=<<___; |
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_2,$t_1 |
|
sltu $at,$c_2,$t_1 |
|
$MULTU $a_2,$a_3 # mul_add_c2(a[2],b[3],c3,c1,c2); |
|
$ADDU $t_2,$at |
|
$ADDU $c_3,$t_2 |
|
sltu $at,$c_3,$t_2 |
|
$ADDU $c_1,$at |
|
$ST $c_2,4*$BNSZ($a0) |
|
___ |
|
&add_c2($t_2,$t_1,$c_3,$c_1,$c_2,0, |
|
$a_3,$a_3); # mul_add_c(a[3],b[3],c1,c2,c3); |
|
$code.=<<___; |
|
$ST $c_3,5*$BNSZ($a0) |
|
|
|
mflo $t_1 |
|
mfhi $t_2 |
|
$ADDU $c_1,$t_1 |
|
sltu $at,$c_1,$t_1 |
|
$ADDU $t_2,$at |
|
$ADDU $c_2,$t_2 |
|
$ST $c_1,6*$BNSZ($a0) |
|
$ST $c_2,7*$BNSZ($a0) |
|
|
|
.set noreorder |
|
___ |
|
$code.=<<___ if ($flavour =~ /nubi/i); |
|
$REG_L $t3,4*$SZREG($sp) |
|
$REG_L $t2,3*$SZREG($sp) |
|
$REG_L $t1,2*$SZREG($sp) |
|
$REG_L $t0,1*$SZREG($sp) |
|
$REG_L $gp,0*$SZREG($sp) |
|
$PTR_ADD $sp,6*$SZREG |
|
___ |
|
$code.=<<___; |
|
jr $ra |
|
nop |
|
.end bn_sqr_comba4 |
|
___ |
|
print $code; |
|
close STDOUT;
|
|
|