SliTaz Repositories

     1.1 --- a/memtest/stuff/unlzma.S	Thu Sep 01 16:30:12 2016 +0200
     1.2 +++ b/memtest/stuff/unlzma.S	Thu Jan 30 09:57:32 2020 +0100
     1.3 @@ -106,13 +106,27 @@
     1.4   */
     1.5   
     1.6  	mov	$ws1, CX
     1.7 +#ifdef ONLY8086
     1.8 +	movw	$2048/2, %ax
     1.9 +lzd1:
    1.10 +	pushw	%ax
    1.11 +#else
    1.12  lzd1:
    1.13  	pushw	$2048/2
    1.14 +#endif
    1.15  	loop	lzd1
    1.16  	mov	SP, BP
    1.17  	movb	$((LOCALS+3)/4)*2, %cl
    1.18 +#ifdef ONLY8086
    1.19 +	movw	$1, %ax
    1.20 +	cwd
    1.21 +initlocals:
    1.22 +	pushw	%dx
    1.23 +	pushw	%ax
    1.24 +#else
    1.25  initlocals:
    1.26  	pushl	$1
    1.27 +#endif
    1.28  	loop	initlocals
    1.29  
    1.30  #if !defined(FLAT32) && !defined(FLAT16OUT)
    1.31 @@ -175,12 +189,22 @@
    1.32  // 	((((nowPos) & literalPosMask) << lc) + (previousByte >> (8 - lc))));
    1.33  
    1.34  #if PROP_LC != 0
    1.35 +# ifdef ONLY8086
    1.36 +	movb	$8-PROP_LC, %cl
    1.37 +	shrb	%cl, %bl
    1.38 +# else
    1.39  	shrb	$8-PROP_LC, %bl
    1.40 +# endif
    1.41  #endif
    1.42  
    1.43  #if PROP_LP != 0
    1.44  	movb	posState2(BP), %dl
    1.45 +# ifdef ONLY8086
    1.46 +	movb	$PROP_LC, %cl
    1.47 +	shl	%cl, DX
    1.48 +# else
    1.49  	shl	$PROP_LC, DX
    1.50 +# endif
    1.51  	movb	$0, %bh
    1.52  	add	BX, DX
    1.53  #endif
    1.54 @@ -338,6 +362,23 @@
    1.55  //           rep1 = rep0; rep0 = distance;
    1.56  
    1.57  lzd11z:
    1.58 +# ifdef ONLY8086
    1.59 +	shl	$1, CX
    1.60 +	shl	$1, CX		// 8->32 bits
    1.61 +	sub	CX, DI		// &rep[cx]
    1.62 +	movw	(BP, DI), %ax
    1.63 +	pushw	2(BP, DI)
    1.64 +rotreplp:
    1.65 +	movb	4(BP, DI), %bl
    1.66 +	movb	%bl, (BP, DI)
    1.67 +	inc	DI
    1.68 +	loop	rotreplp
    1.69 +	popw	%bx
    1.70 +	testb	%dh, %dh
    1.71 +	jnz	lzd10
    1.72 +	movw	%ax, (BP, DI)
    1.73 +	movw	%bx, 2(BP, DI)
    1.74 +# else
    1.75  	shl	$2, CX		// 8->32 bits
    1.76  	sub	CX, DI		// &rep[cx]
    1.77  	movl	(BP, DI), %eax
    1.78 @@ -349,6 +390,7 @@
    1.79  	testb	%dh, %dh
    1.80  	jnz	lzd10
    1.81  	movl	%eax, (BP, DI)
    1.82 +# endif
    1.83  
    1.84  //         }
    1.85  lzd12:
    1.86 @@ -497,7 +539,17 @@
    1.87  //             rep0 <<= numDirectBits;
    1.88  
    1.89  	neg	AX
    1.90 +# ifdef ONLY8086
    1.91 +	pushw	%cx
    1.92 +	movb	$0, %ch
    1.93 +shllrep0:
    1.94 +	shlw	$1, (BP, DI)
    1.95 +	rclw	$1, 2(BP, DI)
    1.96 +	loop	shllrep0
    1.97 +	popw	%cx
    1.98 +# else
    1.99  	shll	%cl, (BP, DI)
   1.100 +# endif
   1.101  	add	(BP, DI), AX
   1.102  
   1.103  //             prob = p + SpecPos /*688*/ + rep0 - posSlot - 1;
   1.104 @@ -515,6 +567,26 @@
   1.105  
   1.106  lzd23z:
   1.107  	call	RC_NORMALIZE
   1.108 +# ifdef ONLY8086
   1.109 +	pushw	%dx
   1.110 +	shrw	$1, Range+2(BP)
   1.111 +	rcrw	$1, Range(BP)
   1.112 +	movw	Range(BP), %ax
   1.113 +	movw	Range+2(BP), %dx
   1.114 +	cmpw	Code+2(BP), %dx
   1.115 +	ja	lzd25
   1.116 +	jb	lzd25x
   1.117 +	cmpw	Code(BP), %ax
   1.118 +	ja	lzd25
   1.119 +lzd25x:
   1.120 +	subw	%ax, Code(BP)
   1.121 +	sbbw	%dx, Code+2(BP)
   1.122 +	stc
   1.123 +lzd25:
   1.124 +	popw	%dx
   1.125 +	rclw	$1, (BP, DI)
   1.126 +	rclw	$1, 2(BP, DI)
   1.127 +# else
   1.128  	shrl	$1, Range(BP)
   1.129  	movl	Range(BP), %eax
   1.130  	cmpl	Code(BP), %eax
   1.131 @@ -523,6 +595,7 @@
   1.132  	stc
   1.133  lzd25:
   1.134  	rcll	$1, (BP, DI)
   1.135 +# endif
   1.136  
   1.137  //             } while (--numDirectBits != 0);
   1.138  
   1.139 @@ -532,7 +605,17 @@
   1.140  //             prob = p + Align /* 802 */; numDirectBits = kNumAlignBits /*4*/;
   1.141  //             rep0 <<= numDirectBits;
   1.142  
   1.143 +# ifdef ONLY8086
   1.144 +	pushw	%cx
   1.145 +	movb	$0, %ch
   1.146 +shlrep0:
   1.147 +	shlw	$1, (BP, DI)
   1.148 +	rclw	$1, 2(BP, DI)
   1.149 +	loop	shlrep0
   1.150 +	popw	%cx
   1.151 +# else
   1.152  	shll	%cl, (BP, DI)
   1.153 +# endif
   1.154  	mov	$802, AX
   1.155  //           }
   1.156  
   1.157 @@ -554,7 +637,13 @@
   1.158  lzd22:
   1.159  //         if (++rep0 == (UInt32)(0)) break; /* EOF */
   1.160  
   1.161 +# ifdef ONLY8086
   1.162 +	incw	(BP, DI)
   1.163 +	jnz	lzd19
   1.164 +	incw	2(BP, DI)
   1.165 +# else
   1.166  	incl	(BP, DI)
   1.167 +# endif
   1.168  
   1.169  lzd19:
   1.170  	pop	CX
   1.171 @@ -610,6 +699,24 @@
   1.172   
   1.173  Dico2ESDI:
   1.174  #if !defined(FLAT32) && !defined(FLAT16OUT)
   1.175 +# ifdef ONLY8086
   1.176 +	pushw	%ax
   1.177 +	movw	nowPos(%bp), %bx
   1.178 +	movw	nowPos+2(%bp), %ax
   1.179 +	jnc	Dico2ESDIz
   1.180 +	subw	rep0(%bp), %bx
   1.181 +	sbbw	rep0+2(%bp), %ax
   1.182 +Dico2ESDIz:
   1.183 +	movw	$0xF, %di
   1.184 +	andw	%bx, %di
   1.185 +	pushw	%cx
   1.186 +	movb	$4, %cl
   1.187 +	shrw	%cl, %bx
   1.188 +	shlw	%cl, %ax
   1.189 +	popw	%cx
   1.190 +	addb	%al, %bh
   1.191 +	popw	%ax
   1.192 +# else
   1.193  	movl	nowPos(%bp), %ebx
   1.194  	jnc	Dico2ESDIz
   1.195  	subl	rep0(%bp), %ebx
   1.196 @@ -617,6 +724,7 @@
   1.197  	movw	%bx, %di
   1.198  	xorw	%bx, %bx
   1.199  	shrl	$4, %ebx
   1.200 +# endif
   1.201  	movw	%bx, %es
   1.202  #else
   1.203  	mov	nowPos(BP), DI
   1.204 @@ -673,7 +781,14 @@
   1.205  	andb	$((1 << PROP_LP) -1), posState2(BP)
   1.206  # endif
   1.207  #endif
   1.208 +#ifdef ONLY8086
   1.209 +	incw	nowPos(BP)
   1.210 +	jnz	incnowPosDone
   1.211 +	incw	nowPos+2(BP)
   1.212 +incnowPosDone:
   1.213 +#else
   1.214  	incl	nowPos(BP)
   1.215 +#endif
   1.216  	ret
   1.217  
   1.218  //  
   1.219 @@ -690,8 +805,20 @@
   1.220  	jne	RC_NORMALIZE_1
   1.221  RC_LOAD_BYTE:
   1.222  	push	AX
   1.223 +#ifdef ONLY8086
   1.224 +	movw	Range+1(BP), %ax
   1.225 +	movw	%ax, Range+2(BP)
   1.226 +	movw	Code+1(BP), %ax
   1.227 +	movw	%ax, Code+2(BP)
   1.228 +	xorw	%ax, %ax
   1.229 +	movb	Range(BP), %ah
   1.230 +	movw	%ax, Range(BP)
   1.231 +	movb	Code(BP), %ah
   1.232 +	movw	%ax, Code(BP)
   1.233 +#else
   1.234  	shll	$8, Range(BP)
   1.235  	shll	$8, Code(BP)
   1.236 +#endif
   1.237  #if !defined(FLAT16) && !defined(FLAT32)
   1.238  	testw	%si, %si
   1.239  	jns	RC_READ_BYTE
   1.240 @@ -741,7 +868,14 @@
   1.241  
   1.242  	call  RC_NORMALIZE		// kill %ax, update %si
   1.243  
   1.244 +#ifdef ONLY8086
   1.245 +	pushw	%ax
   1.246 +	pushw	%cx
   1.247 +	pushw	%dx
   1.248 +	pushw	%di
   1.249 +#else
   1.250  	pushal
   1.251 +#endif
   1.252  
   1.253  	xchg	AX, DI
   1.254  	add	DI, DI			// short *
   1.255 @@ -749,19 +883,48 @@
   1.256  
   1.257  // 	bound = (Range>>kNumBitModelTotalBits /*11*/) * *(p);
   1.258  
   1.259 +#ifdef ONLY8086
   1.260 +	movw	Range(BP), %dx
   1.261 +	movw	Range+2(BP), %ax
   1.262 +	movw	$11, %cx
   1.263 +shr11lp:
   1.264 +	shrw	$1, %ax
   1.265 +	rcrw	$1, %dx
   1.266 +	loop	shr11lp
   1.267 +	movw	%dx, %cx
   1.268 +	mulw	(BP, DI)
   1.269 +	xchgw	%ax, %cx
   1.270 +	mulw	(BP, DI)
   1.271 +	addw	%cx, %dx
   1.272 +#else
   1.273  	movl	Range(BP), %eax
   1.274  	shrl	$11, %eax
   1.275  	movzwl	(BP, DI), %edx
   1.276  	mull	%edx
   1.277 +#endif
   1.278  
   1.279  // 	if (Code < bound) {
   1.280  
   1.281 +#ifdef ONLY8086
   1.282 +	cmpw	Code+2(BP), %dx
   1.283 +	jb	Bit1_1
   1.284 +	ja	Bit1_1x
   1.285 +	cmpw	Code(BP), %ax
   1.286 +	jbe	Bit1_1
   1.287 +Bit1_1x:
   1.288 +
   1.289 +//    		Range = bound;
   1.290 +
   1.291 +	movw	%ax, Range(BP)
   1.292 +	movw	%dx, Range+2(BP)
   1.293 +#else
   1.294  	cmpl	Code(BP), %eax
   1.295  	jbe	Bit1_1
   1.296  
   1.297  //    		Range = bound;
   1.298  
   1.299  	movl	%eax, Range(BP)
   1.300 +#endif
   1.301  
   1.302  // 		*(p) += (kBitModelTotal /*2048*/ - *(p)) >> kNumMoveBits /*5*/;
   1.303  
   1.304 @@ -778,8 +941,15 @@
   1.305  
   1.306  //    		Range -= bound; Code -= bound;
   1.307  
   1.308 +#ifdef ONLY8086
   1.309 +	subw	%ax, Range(BP)
   1.310 +	sbbw	%dx, Range+2(BP)
   1.311 +	subw	%ax, Code(BP)
   1.312 +	sbbw	%dx, Code+2(BP)
   1.313 +#else
   1.314  	subl	%eax, Range(BP)
   1.315  	subl	%eax, Code(BP)
   1.316 +#endif
   1.317  
   1.318  // 		*(p) -= (*(p)) >> kNumMoveBits /*5*/;
   1.319  
   1.320 @@ -791,10 +961,22 @@
   1.321  Bit1_2:
   1.322  	pushf
   1.323  	subw	(BP, DI), %ax
   1.324 +#ifdef ONLY8086
   1.325 +	movb	$5, %cl
   1.326 +	sarw	%cl, %ax
   1.327 +#else
   1.328  	sarw	$5, %ax
   1.329 +#endif
   1.330  	addw	%ax, (BP, DI)
   1.331  	popf
   1.332 +#ifdef ONLY8086
   1.333 +	popw	%di
   1.334 +	popw	%dx
   1.335 +	popw	%cx
   1.336 +	popw	%ax
   1.337 +#else
   1.338  	popal
   1.339 +#endif
   1.340  	sbb	AX, AX
   1.341  
   1.342  // 	}