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More Watcom optimizations.
This commit is contained in:
Markus F.X.J. Oberhumer
parent
d3bc84a2f7
commit
0323560b49
File diff suppressed because it is too large
Load Diff
@ -121,6 +121,9 @@ def main(argv):
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return []
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o = olines[pos][1:3]
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assert len(m[i]) == 2, (i, m)
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if o[1] == "*DEL*":
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pos += 1
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continue
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m0 = match(m[i][0], o[0])
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m1 = match(m[i][1], o[1])
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if not m0 or not m1:
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@ -181,8 +184,13 @@ def main(argv):
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if v[:2] == [1, 2]: # external 2-byte
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if k in ["__LMUL", "__U4M",]:
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s = [
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["mov", "bx,word ptr [bx]"],
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["xor", "cx,cx"],
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]
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dpos = omatch(i - 2, s[-2:])
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if 0 and dpos:
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orewrite_inst(i, "M_LMUL_dxax_00bx_ptr", "", dpos)
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continue
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dpos = omatch(i - 1, s[-1:])
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if dpos:
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orewrite_inst(i, "M_LMUL_dxax_00bx", "", dpos)
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@ -243,9 +251,35 @@ def main(argv):
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dpos2 = omatch(i + 1, s2)
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dpos3 = omatch(i + 1, s3)
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if dpos1 and (dpos2 or dos3):
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m = "M_shld_8_bp %s %s" % (dpos1[-2][2].group(1), dpos1[-1][2].group(1))
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bp_dx, bp_ax = dpos1[-1][2].group(1), dpos1[-2][2].group(1)
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m = "M_shld_8_bp %s %s" % (bp_dx, bp_ax)
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orewrite_inst(i, m, "", dpos1)
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continue
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s1 = [
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["mov", r"^word ptr \[bp([+-]\d+)\],si$"],
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["mov", r"^word ptr \[bp([+-]\d+)\],di$"],
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["mov", r"^c[lx],0xb$"],
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["shr", r"^word ptr \[bp([+-]\d+)\],1$"],
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["rcr", r"^word ptr \[bp([+-]\d+)\],1$"],
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]
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s2 = [
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["mov", r"^bx,word ptr"],
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["mov", r"^bx,word ptr"],
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["mov", r"^ax,word ptr \[bp([+-]\d+)\]$"],
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["mov", r"^dx,word ptr \[bp([+-]\d+)\]$"],
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]
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dpos1 = omatch(i - 5, s1[-5:])
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dpos2 = omatch(i + 1, s2)
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if dpos1 and dpos2:
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bp_dx, bp_ax = dpos1[-2][2].group(1), dpos1[-1][2].group(1)
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bp_di, bp_si = dpos1[-4][2].group(1), dpos1[-5][2].group(1)
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assert bp_dx == dpos2[-1][2].group(1)
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assert bp_ax == dpos2[-2][2].group(1)
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assert bp_dx == bp_di
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assert bp_ax == bp_si
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m = "M_shrd_11_disi_bp %s %s" % (bp_dx, bp_ax)
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orewrite_inst(i, m, "", dpos1 + dpos2[-2:])
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continue
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#
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if inst in [
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"call", "ja", "jae", "jb", "jbe", "jcxz", "je",
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@ -86,13 +86,10 @@
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//xor cx, cx // FIXME - do we need this ?
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.endm
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.macro M_shld_8_bp l h
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.macro M_shld_8_bp h l
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mov dx, word ptr[bp+h]
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mov ax, word ptr[bp+l]
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mov dh, dl
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mov dl, ah
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mov ah, al
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xor al, al
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M_shld_8
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mov word ptr[bp+h], dx
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mov word ptr[bp+l], ax
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.endm
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@ -100,7 +97,7 @@
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// shld: dx:ax >>= 11
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.macro M_shrd_11
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#if 1
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#if 0
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mov al, ah
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mov ah, dl
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mov dl, dh
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@ -112,6 +109,7 @@
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shr dx
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rcr ax
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#else
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// WARNING: this trashes "bx" !
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mov cl, 11
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mov bx, dx // save dx
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shr ax, cl
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@ -123,6 +121,22 @@
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//xor cx, cx // FIXME - do we need this ?
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.endm
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.macro M_shrd_11_bp h l
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mov dx, word ptr[bp+h]
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mov ax, word ptr[bp+l]
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M_shrd_11
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mov word ptr[bp+h], dx
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mov word ptr[bp+l], ax
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.endm
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.macro M_shrd_11_disi_bp h l
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mov dx, di
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mov ax, si
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M_shrd_11
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mov word ptr[bp+h], dx
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mov word ptr[bp+l], ax
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.endm
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// shld: dx:ax <<= cl; trashes cl and register "r1" (bx, di, si or bp)
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// REQUIRED: 0 <= cl <= 15
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@ -202,7 +216,7 @@ section LZMA_DEC00
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push ds
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mov bp, sp
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#if 1
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#if 0
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// DEBUG - check for enough stack
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lea bx, [bp + lzma_stack_adjust - 256]
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cmp bp, bx
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@ -286,5 +300,4 @@ section LZMA_DEC31
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mov es, ax
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// vi:ts=4:et
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@ -45,26 +45,26 @@ Idx Name Size VMA LMA File off Algn Flags
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40 N2E64K02 0000000b 00000000 00000000 00000290 2**0 CONTENTS, READONLY
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41 NRV2EEX9 00000004 00000000 00000000 0000029b 2**0 CONTENTS, READONLY
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42 LZMA_DEC99 00000000 00000000 00000000 0000029f 2**0 CONTENTS, READONLY
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43 LZMA_DEC00 00000043 00000000 00000000 0000029f 2**0 CONTENTS, RELOC, READONLY
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44 LZMA_DEC10 00001197 00000000 00000000 000002e2 2**0 CONTENTS, READONLY
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45 LZMA_DEC20 00001197 00000000 00000000 00001479 2**0 CONTENTS, READONLY
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46 LZMA_DEC30 00000006 00000000 00000000 00002610 2**0 CONTENTS, RELOC, READONLY
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47 LZMA_DEC31 00000007 00000000 00000000 00002616 2**0 CONTENTS, RELOC, READONLY
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48 EXEMAIN5 00000001 00000000 00000000 0000261d 2**0 CONTENTS, READONLY
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49 EXEADJUS 00000007 00000000 00000000 0000261e 2**0 CONTENTS, READONLY
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50 EXENOADJ 00000002 00000000 00000000 00002625 2**0 CONTENTS, READONLY
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51 EXERELO1 0000001e 00000000 00000000 00002627 2**0 CONTENTS, RELOC, READONLY
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52 EXEREL9A 00000012 00000000 00000000 00002645 2**0 CONTENTS, RELOC, READONLY
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53 EXERELO2 00000004 00000000 00000000 00002657 2**0 CONTENTS, READONLY
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54 EXEREBIG 00000002 00000000 00000000 0000265b 2**0 CONTENTS, RELOC, READONLY
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55 EXERELO3 00000002 00000000 00000000 0000265d 2**0 CONTENTS, RELOC, READONLY
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56 EXEMAIN8 00000003 00000000 00000000 0000265f 2**0 CONTENTS, READONLY
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57 DEVICEEND 00000013 00000000 00000000 00002662 2**0 CONTENTS, READONLY
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58 EXESTACK 00000006 00000000 00000000 00002675 2**0 CONTENTS, RELOC, READONLY
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59 EXESTASP 00000003 00000000 00000000 0000267b 2**0 CONTENTS, RELOC, READONLY
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60 EXEJUMPF 00000005 00000000 00000000 0000267e 2**0 CONTENTS, RELOC, READONLY
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61 EXERCSPO 00000004 00000000 00000000 00002683 2**0 CONTENTS, RELOC, READONLY
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62 EXERETIP 00000006 00000000 00000000 00002687 2**0 CONTENTS, RELOC, READONLY
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43 LZMA_DEC00 0000003b 00000000 00000000 0000029f 2**0 CONTENTS, RELOC, READONLY
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44 LZMA_DEC10 000011a4 00000000 00000000 000002da 2**0 CONTENTS, READONLY
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45 LZMA_DEC20 000011a4 00000000 00000000 0000147e 2**0 CONTENTS, READONLY
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46 LZMA_DEC30 00000006 00000000 00000000 00002622 2**0 CONTENTS, RELOC, READONLY
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47 LZMA_DEC31 00000007 00000000 00000000 00002628 2**0 CONTENTS, RELOC, READONLY
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48 EXEMAIN5 00000001 00000000 00000000 0000262f 2**0 CONTENTS, READONLY
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49 EXEADJUS 00000007 00000000 00000000 00002630 2**0 CONTENTS, READONLY
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50 EXENOADJ 00000002 00000000 00000000 00002637 2**0 CONTENTS, READONLY
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51 EXERELO1 0000001e 00000000 00000000 00002639 2**0 CONTENTS, RELOC, READONLY
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52 EXEREL9A 00000012 00000000 00000000 00002657 2**0 CONTENTS, RELOC, READONLY
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53 EXERELO2 00000004 00000000 00000000 00002669 2**0 CONTENTS, READONLY
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54 EXEREBIG 00000002 00000000 00000000 0000266d 2**0 CONTENTS, RELOC, READONLY
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55 EXERELO3 00000002 00000000 00000000 0000266f 2**0 CONTENTS, RELOC, READONLY
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56 EXEMAIN8 00000003 00000000 00000000 00002671 2**0 CONTENTS, READONLY
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57 DEVICEEND 00000013 00000000 00000000 00002674 2**0 CONTENTS, READONLY
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58 EXESTACK 00000006 00000000 00000000 00002687 2**0 CONTENTS, RELOC, READONLY
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59 EXESTASP 00000003 00000000 00000000 0000268d 2**0 CONTENTS, RELOC, READONLY
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60 EXEJUMPF 00000005 00000000 00000000 00002690 2**0 CONTENTS, RELOC, READONLY
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61 EXERCSPO 00000004 00000000 00000000 00002695 2**0 CONTENTS, RELOC, READONLY
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62 EXERETIP 00000006 00000000 00000000 00002699 2**0 CONTENTS, RELOC, READONLY
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SYMBOL TABLE:
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00000000 l d DEVICEENTRY 00000000 DEVICEENTRY
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00000000 l d EXEENTRY 00000000 EXEENTRY
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@ -255,15 +255,14 @@ OFFSET TYPE VALUE
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RELOCATION RECORDS FOR [LZMA_DEC00]:
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OFFSET TYPE VALUE
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00000005 R_386_16 lzma_stack_adjust
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0000000d R_386_16 lzma_stack_adjust
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00000015 R_386_16 lzma_u_len_hi
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00000019 R_386_16 lzma_u_len
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00000023 R_386_16 lzma_c_len_hi
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00000027 R_386_16 lzma_c_len
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00000033 R_386_16 lzma_properties_hi
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00000039 R_386_16 lzma_properties
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0000003e R_386_PC16 LZMA_DEC10
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00000041 R_386_PC16 LZMA_DEC30
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0000000d R_386_16 lzma_u_len_hi
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00000011 R_386_16 lzma_u_len
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0000001b R_386_16 lzma_c_len_hi
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0000001f R_386_16 lzma_c_len
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0000002b R_386_16 lzma_properties_hi
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00000031 R_386_16 lzma_properties
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00000036 R_386_PC16 LZMA_DEC10
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00000039 R_386_PC16 LZMA_DEC30
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RELOCATION RECORDS FOR [LZMA_DEC30]:
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OFFSET TYPE VALUE
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