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1.1 ! root 1: ;---------------------------Module-Header------------------------------; ! 2: ; Module Name: devdata.inc ! 3: ; ! 4: ; Copyright (c) 1992 Microsoft Corporation ! 5: ;-----------------------------------------------------------------------; ! 6: ! 7: ; Instructions used in the compiler. Word quantities have already been ! 8: ; swapped so that they come out correctly when stored. ! 9: ! 10: I_ADD_AL_BYTE_I equ 004h ; ADD al,12h ! 11: I_ADD_EDI_DWORD_I equ 0C781h ; ADD edi,12345678h ! 12: I_ADD_ESI_DWORD_I equ 0C681h ; ADD esi,12345678h ! 13: I_AND_AL_BYTE_I equ 024h ; AND al,12h ! 14: I_AND_AL_MEM equ 00522h ; AND al,[byteaddr] ! 15: I_CALL_DISP32 equ 0E8h ; CALL 12345678h ! 16: I_DEC_ECX equ 049h ; DEC ecx ! 17: I_DEC_ESI_DEC_EDI equ 04F4Eh ; DEC esi ! 18: ; DEC edi ! 19: I_INC_ESI_INC_EDI equ 04746h ; INC esi ! 20: ; INC edi ! 21: I_JMP_DISP32 equ 0E9h ; JMP 12345678h ! 22: I_JNC_DISP32 equ 0830Fh ; JNC $+12345678h ! 23: I_JNZ_DISP32 equ 0850fh ; JNZ $+12345678h ! 24: I_LODSB equ 0ACh ; LODSB ! 25: I_LOOP equ 0E2h ; LOOP $ ! 26: I_MOVSB equ 0A4h ; MOVSB ! 27: I_MOV_AH_AL equ 0E08Ah ; MOV ah,al ! 28: I_MOV_AH_DEST equ 0278Ah ; MOV ah,[edi] ! 29: I_MOV_AH_ESI_DISP32 equ 0A68Ah ; MOV ah,12345678h[esi] ! 30: I_MOV_AL_0FFH equ 0FFB0h ; MOV al,0FFH ! 31: I_MOV_AL_DH equ 0C68Ah ; MOV al,dh ! 32: I_MOV_AL_ESI_DISP32 equ 0868Ah ; MOV al,12345678h[esi] ! 33: I_MOV_AL_MEM equ 0A0h ; MOV al,[byteaddr] ! 34: I_MOV_BL_BYTE_I equ 0B3h ; MOV bl,12h ! 35: I_MOV_DH_EBX_DISP8 equ 0738Ah ; MOV dh,12h[ebx] ! 36: I_MOV_EBP_DWORD_I equ 0BDh ; MOV ebp,12345678h ! 37: I_MOV_EBX_DWORD_I equ 0BBh ; MOV ebx,12345678h ! 38: I_MOV_ECX_DWORD_I equ 0B9h ; MOV ecx,12345678h ! 39: I_MOV_EDX_DWORD_I equ 0BAh ; MOV ecx,12345678h ! 40: I_MOV_MEM_AL equ 0A2h ; MOV [byteaddr],al ! 41: ! 42: I_NEG_DH equ 0DEF6h ; NEG dh ! 43: I_NOT_AL equ 0D0F6h ; NOT al ! 44: I_OR_AH_AL equ 0E00Ah ; OR ah,al ! 45: I_OR_AL_AH equ 0C40Ah ; OR al,ah ! 46: I_POP_EBX equ 05Bh ; POP ebx ! 47: I_POP_EDI_POP_ECX equ 0595Fh ; POP edi ! 48: ; POP ecx ! 49: I_POP_ESI equ 05Eh ; POP esi ! 50: I_PUSH_EBX equ 053h ; PUSH ebx ! 51: I_PUSH_ECX_PUSH_EDI equ 05751h ; PUSH ecx ! 52: ; PUSH edi ! 53: I_PUSH_ESI equ 056h ; PUSH esi ! 54: I_REP equ 0F3h ; REP ! 55: I_RET equ 0C3h ; RET ! 56: I_ROL_AL_N equ 0C0C0h ; ROL al,2 ! 57: I_ROR_AL_N equ 0C8C0h ; ROR al,2 ! 58: I_SETNZ_DH equ 0C6950Fh ; SETNZ dh ! 59: I_SHL_BL_1 equ 0E3D0h ; SHL bl,1 ! 60: I_SIZE_OVERRIDE equ 066h ; size override ! 61: I_STOSB equ 0AAh ; STOSB ! 62: I_TEST_BL_BYTE_I equ 0C3F6h ; TEST bl,12h ! 63: I_XOR_AL_BYTE_I equ 034h ; XOR al,12h ! 64: I_XOR_AL_MEM equ 00532h ; XOR al,[byteaddr] ! 65: I_XOR_BH_BH equ 0FF32h ; XOR BH,BH ! 66: ! 67: ; The following instructions require that I_SIZE_OVERRIDE preceed them ! 68: ! 69: I_MOVSW equ 0A5h ; MOVSW ! 70: I_MOV_BP_WORD_I equ 0BDh ; MOV bp,1234h ! 71: I_NOT_AX equ 0D0F7h ; NOT ax ! 72: I_STOSW equ 0ABh ; STOSW ! 73: I_XOR_AX_WORD_I equ 035h ; XOR ax,12h ! 74: I_XOR_EAX_EAX equ 0C033h ; xor eax, eax ! 75: ! 76: ! 77: ;-----------------------------------------------------------------------; ! 78: ; phase_align - Template for phase alignment code ! 79: ; ! 80: ; The following code is the template that performs the phase ! 81: ; alignment masking. The source has already been aligned to ! 82: ; the destination. ! 83: ; ! 84: ; A copy of the aligned source is made. The phase mask is then ! 85: ; applied to the source and the copy. The previously unused ! 86: ; bits are ORed into the used bits of the current source, and ! 87: ; the unused bits of the current source then become the unused ! 88: ; bits for the next source. ! 89: ; ! 90: ; It assumes: ! 91: ; BP = phase alignment mask ! 92: ; AL = current byte to mask ! 93: ; BH = old unused bits ! 94: ;-----------------------------------------------------------------------; ! 95: ! 96: phase_align: ! 97: mov ah,al ;Make a copy of aligned source ! 98: and ax,bp ;Masked used, unused bits ! 99: or al,bh ;Mask in old unused bits ! 100: mov bh,ah ;Save new unused bits ! 101: ! 102: PHASE_ALIGN_LEN equ $-phase_align ;Length of procedure ! 103: ! 104: ! 105: ;-----------------------------------------------------------------------; ! 106: ; masked_store - Template for storing first and last bytes of BLT ! 107: ; ! 108: ; The following code is a template for storing the first and last ! 109: ; bytes of a BLT. The unaltered bits are saved and the altered ! 110: ; bits set in the byte, then the byte is stored. ! 111: ; ! 112: ; ! 113: ; It assumes: ! 114: ; ! 115: ; AL = The byte to be BLTed to the destination bitmap. ! 116: ; All necessary logic operations have been performed ! 117: ; on this byte. ! 118: ; ! 119: ; AH = The destination byte. ! 120: ; ! 121: ;-----------------------------------------------------------------------; ! 122: ! 123: masked_store: ! 124: and ax,0FFFFh ;Mask altered/unaltered bits ! 125: or al,ah ;Combine the bits ! 126: stosb ;And store the result ! 127: ! 128: MASKED_STORE_LEN equ $-masked_store ;Length of the template ! 129: MASKED_STORE_MASK equ -5 ;Offset to where mask goes ! 130: ! 131: ! 132: ;-----------------------------------------------------------------------; ! 133: ; EGA Color Plane Setup Code ! 134: ; ! 135: ; The EGA Color Plane Setup Code is used when the EGA is involved ! 136: ; in the BLT, and the BLT isn't from the EGA to a monochrome bitmap. ! 137: ; ! 138: ; The template will be copied, and any required fixups will be ! 139: ; performed. The very first instruction will be generated on ! 140: ; the fly instead of being copied and fixed-up. ! 141: ; ! 142: ; It assumes: ! 143: ; BL = MapMask value ! 144: ;-----------------------------------------------------------------------; ! 145: ! 146: cps: ! 147: mov al,MM_ALL ;Set Map Mask ! 148: and al,bl ;Isolate the plane ! 149: mov dx,EGA_BASE + SEQ_DATA ! 150: out dx,al ! 151: shr al,1 ;Map plane into ReadMask ! 152: cmp al,100b ;Set Carry if not C3 (plane 3) ! 153: adc al,-1 ;Sub 1 only if C3 ! 154: mov ah,al ! 155: mov al,GRAF_READ_MAP ! 156: mov dl,GRAF_ADDR ! 157: out dx,ax ! 158: ! 159: LENGTH_CPS = $ - cps ;Length of the code ! 160: ! 161: ! 162: ;-----------------------------------------------------------------------; ! 163: ; Mono ==> Color Fetch Code ! 164: ; ! 165: ; The mono ==> color fetch code is generated when the source ! 166: ; is a monochrome bitmap and the destination is color. ! 167: ; ! 168: ; When going from mono to color, 1 bits are considered to be ! 169: ; the background color, and 0 bits are considered to be the ! 170: ; foreground color. ! 171: ; ! 172: ; For each plane: ! 173: ; ! 174: ; If the foreground=background=1, then 1 can be used in ! 175: ; place of the source. ! 176: ; ! 177: ; If the foreground=background=0, then 0 can be used in ! 178: ; place of the source. ! 179: ; ! 180: ; If the foreground=0 and background=1, then the source ! 181: ; can be used as is. ! 182: ; ! 183: ; If the foreground=1 and background=0, then the source ! 184: ; must be complemented before using. ! 185: ; ! 186: ; A table will be created for processing the monochrome ! 187: ; bitmap for each plane of the destination. The table ! 188: ; should look like: ! 189: ; ! 190: ; BackGnd ForeGnd Result AND XOR ! 191: ; 1 1 1 00 FF ! 192: ; 0 0 0 00 00 ! 193: ; 1 0 S FF 00 ! 194: ; 0 1 not S FF FF ! 195: ; ! 196: ; From this, it can be seen that the XOR mask is the same as the ! 197: ; foreground color. The AND mask is the XOR of the foreground ! 198: ; and the background color. ! 199: ; ! 200: ; It can also be seen that if the background color is white and the ! 201: ; foreground (text) color is black, then the conversion needn't be ! 202: ; generated (it just gives the source). ! 203: ; ! 204: ; The template for rotating the AND and XOR table for the plane ! 205: ; select code is also shown. It just does a three word rotate ! 206: ; on the AND and XOR masks on the stack. It is performed at the ! 207: ; end of a scan in anticipation of the next color for that scan. ! 208: ; ! 209: ; lodsb ;Get next byte of source ! 210: ; and al,byte ptr ss:[1234h] ;Process against current AND ! 211: ; xor al,byte ptr ss:[1234h] ; and XOR masks ! 212: ;-----------------------------------------------------------------------; ! 213: ! 214: rot_and_xor: ! 215: ; lea ebp,ColorMungeTBl ;--> AND/XOR masks ! 216: mov ax,word ptr [ebp][6] ;Rotate next color's AND and ! 217: xchg ax,word ptr [ebp][4] ; XOR mask into place ! 218: xchg ax,word ptr [ebp][2] ; XOR mask into place ! 219: xchg ax,word ptr [ebp][0] ! 220: mov word ptr [ebp][6],ax ! 221: ! 222: LEN_ROT_AND_XOR = $-rot_and_xor ! 223: page ! 224:
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