typos
This commit is contained in:
Dennis Yurichev
parent
f69d425cac
commit
897e853a42
16 changed files with 102 additions and 102 deletions
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@ -203,14 +203,14 @@ _FixedMul endp
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; Fixedpoint FixedDiv(Fixedpoint Dividend, Fixedpoint Divisor);
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FDparms struc
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dw 2 dup(?) ;return address & pushed BP
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Dividend dd?
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Divisor dd?
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Dividend dd ?
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Divisor dd ?
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FDparms ends
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alignALIGNMENT
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public_FixedDiv
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align ALIGNMENT
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public _FixedDiv
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_FixedDivproc near
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pushbp
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movbp,sp
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push bp
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mov bp,sp
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if USE386
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@ -268,13 +268,13 @@ else ;!USE386
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; projection can't be performed for points closer to the viewpoint than Z=1.
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;figure out signs, so we can use
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; unsigned divisions
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subcx, cx ;assume both operands positive
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sub cx,cx ;assume both operands positive
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mov ax,word ptr [bp+Dividend+2]
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and ax,ax;first operand negative?
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jns CheckSecondOperandD ;no
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neg ax ;yes, so negate first operand
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neg word ptr [bp+Dividend]
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sbbax,0
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sbb ax,0
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inc cx ;mark that first operand is negative
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CheckSecondOperandD:
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mov bx,word ptr [bp+Divisor+2]
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@ -366,9 +366,9 @@ CheckInRange:
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ja Quadrant1
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;quadrant 0
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shl bx,2
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move ax,CosTable[bx] ;look up sine
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mov eax,CosTable[bx] ;look up sine
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neg bx;sin(Angle) = cos(90-Angle)
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move dx,CosTable[bx+90*10*4] ;look up cosine
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mov edx,CosTable[bx+90*10*4] ;look up cosine
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jmp short CSDone
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align ALIGNMENT
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@ -376,10 +376,10 @@ Quadrant1:
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neg bx
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add bx,180*10 ;convert to angle between 0 and 90
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shl bx,2
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move ax,CosTable[bx] ;look up cosine
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mov eax,CosTable[bx] ;look up cosine
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neg eax ;negative in this quadrant
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neg bx ;sin(Angle) = cos(90-Angle)
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move dx,CosTable[bx+90*10*4] ;look up cosine
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mov edx,CosTable[bx+90*10*4] ;look up cosine
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jmp short CSDone
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align ALIGNMENT
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@ -390,9 +390,9 @@ BottomHalf: ;quadrant 2 or 3
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ja Quadrant2
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;quadrant 3
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shl bx,2
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move ax,CosTable[bx] ;look up cosine
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mov eax,CosTable[bx] ;look up cosine
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neg bx;sin(Angle) = cos(90-Angle)
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move dx,CosTable[90*10*4+bx] ;look up sine
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mov edx,CosTable[90*10*4+bx] ;look up sine
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neg edx ;negative in this quadrant
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jmp short CSDone
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@ -401,10 +401,10 @@ Quadrant2:
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neg bx
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add bx,180*10 ;convert to angle between 0 and 90
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shl bx,2
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move ax,CosTable[bx] ;look up cosine
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mov eax,CosTable[bx] ;look up cosine
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neg eax ;negative in this quadrant
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neg bx ;sin(Angle) = cos(90-Angle)
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move dx,CosTable[90*10*4+bx] ;look up sine
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mov edx,CosTable[90*10*4+bx] ;look up sine
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neg edx ;negative in this quadrant
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CSDone:
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mov bx,[bp].Cos
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@ -619,9 +619,9 @@ if MUL-ROUNDING-ON
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adc edx,0 ;whole part of result is in DX
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endif ;MUL-ROUNDING-ON
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shrd eax,edx,16 ;shift the result back to 16.16 form
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move cx,eax ;set running total
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mov ecx,eax ;set running total
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move ax,[si+soff+4] ;column 1 entry on this row
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mov eax,[si+soff+4] ;column 1 entry on this row
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imul dword ptr [bx+4] ;xform entry times source Y entry
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if MUL-ROUNDING-ON
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add eax,8000h ;round by adding 2^(-17)
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@ -630,7 +630,7 @@ endif ;MUL-ROUNDING-ON
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shrd eax,edx,16 ;shift the result back to 16.16 form
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add ecx,eax ;running total for this row
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move ax,[si+soff+8] ;column 2 entry on this row
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mov eax,[si+soff+8] ;column 2 entry on this row
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imul dword ptr [bx+8] ;xform entry times source Z entry
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if MUL-ROUNDING-ON
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add eax,8000h ;round by adding 2^(-17)
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@ -759,17 +759,17 @@ coff=0 ;column offset
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REPT 3 ;once for each of the first 3 columns,
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; assuming 0 as the bottom entry (no
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; translation)
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move ax,[si+roff] ;column 0 entry on this row
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mov eax,[si+roff] ;column 0 entry on this row
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imul dword ptr [bx+coff] ;times row 0 entry in column
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if MUL-ROUNDING-ON
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add eax,8000h ;round by adding 2^(-17)
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adc edx,0 ;whole part of result is in DX
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endif ;MUL-ROUNDING-ON
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shrd eax,edx,16 ;shift the result back to 16.16 form
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move cx,eax ;set running total
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mov ecx,eax ;set running total
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move ax,[si+roff+4] ;column 1 entry on this row
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imuld word ptr [bx+coff+16] ;times row 1 entry in col
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mov eax,[si+roff+4] ;column 1 entry on this row
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imul dword ptr [bx+coff+16] ;times row 1 entry in col
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if MUL-ROUNDING-ON
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add eax,8000h ;round by adding 2^(-17)
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adc edx,0 ;whole part of result is in DX
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@ -777,8 +777,8 @@ endif ;MUL-ROUNDING-ON
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shrd eax,edx,16 ;shift the result back to 16.16 form
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add ecx,eax ;running total
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move ax,[si+roff+8] ;column 2 entry on this row
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imuld word ptr [bx+coff+32] ;times row 2 entry in col
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mov eax,[si+roff+8] ;column 2 entry on this row
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imul dword ptr [bx+coff+32] ;times row 2 entry in col
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if MUL-ROUNDING-ON
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add eax,8000h ;round by adding 2^(-17)
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adc edx,0 ;whole part of result is in DX
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@ -792,17 +792,17 @@ coff=coff+4 ;point to next col in xform2 & dest
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;now do the fourth column, assuming
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; 1 as the bottom entry, causing
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; translation to be performed
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move ax,[si+roff] ;column 0 entry on this row
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imuld word ptr [bx+coff] ;times row 0 entry in column
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mov eax,[si+roff] ;column 0 entry on this row
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imul dword ptr [bx+coff] ;times row 0 entry in column
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if MUL-ROUNDING-ON
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add eax,8000h ;round by adding 2^(-17)
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adc edx,0 ;whole part of result is in DX
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endif ;MUL-ROUNDING-ON
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shrd eax,edx,16 ;shift the result back to 16.16 form
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move cx,eax ;set running total
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mov ecx,eax ;set running total
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move ax,[si+roff+4] ;column 1 entry on this row
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imuld word ptr [bx+coff+16] ;times row 1 entry in col
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mov eax,[si+roff+4] ;column 1 entry on this row
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imul dword ptr [bx+coff+16] ;times row 1 entry in col
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if MUL-ROUNDING-ON
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add eax,8000h ;round by adding 2^(-17)
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adc edx,0 ;whole part of result is in DX
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@ -810,8 +810,8 @@ endif ;MUL-ROUNDING-ON
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shrd eax,edx,16 ;shift the result back to 16.16 form
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add ecx,eax ;running total
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move ax,[si+roff+8] ;column 2 entry on this row
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imuld word ptr [bx+coff+32] ;times row 2 entry in col
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mov eax,[si+roff+8] ;column 2 entry on this row
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imul dword ptr [bx+coff+32] ;times row 2 entry in col
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if MUL-ROUNDING-ON
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add eax,8000h ;round by adding 2^(-17)
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adc edx,0 ;whole part of result is in DX
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