mirror of
https://github.com/Tolik-Trek/Estex-DSS.git
synced 2026-06-15 09:21:47 +03:00
74 lines
1.9 KiB
NASM
74 lines
1.9 KiB
NASM
;///////////////////////////////////////////////////////////////////////
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; ”ãªæ¨ï #5F. ‚뢮¤ ᨬ¢®« ¯à¨â¥à ¡¥§ ®¦¨¤ ¨ï.
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;
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; ˆâ¥à¯à¥â æ¨ï ¡ ©â á®áâ®ï¨ï ¯à¨â¥à :
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; 0..2 - ¥ ¨á¯®«ì§ãîâáï, ®¡ëç® ãáâ. ¢ "1"
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; 3 - ®è¨¡ª ¯à¨â¥à - ¥áâì/¥â (1/0)
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; 4 - ¯à¨â¥à ¯®¤ª«îç¥/¥ ¯®¤ª«îç¥ (1/0)
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; 5 - ¡ã¬ £¨ ¥â/¥áâì (1/0)
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; 6 - ¯à¨â¥à £®â®¢/¢ë¢®¤¨â ®ç¥à¥¤®© ᨬ¢®« (1/0)
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; 7 - ¯à¨â¥à ᢮¡®¤¥/§ ïâ (1/0)
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;
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; ¢å®¤: A - ᨬ¢®«
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; ¢ë室: B - ᨬ¢®«
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; CF - ®è¨¡ª , A=¡ ©â á®áâ®ï¨ï (¡¨âë 7..3)
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;///////////////////////////////////////////////////////////////////////
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Z84_SP:
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.LPT_A EQU Z84.SIO.Ch_B.Ctrl
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.LPT_B EQU Z84.PIO.Port_A.Data
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.LPT1_C EQU Z84.PIO.Port_A.Command
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.LPT2_D EQU Z84.PIO.Port_B.Data
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.LPT2_C EQU Z84.PIO.Port_B.Command
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;
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PRINT: AND A
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LD B,A ; á®åà 塞 ᨬ¢®«
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;
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LD A,R
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DI
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PUSH AF
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; reg 0
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XOR A
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OUT (Z84_SP.LPT_A),A
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LD A,%0001'0000 ; Reset EXT/STATUS interrupts
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OUT (Z84_SP.LPT_A),A
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XOR A
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OUT (Z84_SP.LPT_A),A
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IN A,(Z84_SP.LPT_A) ; IN (1Bh): bit 5 - busy, Bit 3 - Ack
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LD C,A
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BIT 5,A ; IN (19h): bit 5 - Paper Enable, Bit 3 - Select
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JR NZ,.LPTBUSY
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AND %11011000
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JR Z,.LPTBUSY
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LD A,B ; ¢®ááâ ¢«¨¢ ¥¬ ᨬ¢®«
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OUT (Z84_SP.LPT_B),A
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POP AF
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RET PO
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EI
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RET
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;
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.LPTBUSY: POP AF
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LD A,C
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SCF
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RET PO
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EI
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RET
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; ; ;
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; B - SYMBOL
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; CF = 1 - PRINTER BUSY
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PRINT_INIT: DI
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LD A,#CF
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; port #1F ⮫쪮 ç¥p¥§ LD BC,1F : Out (BC),reg (¢ «ìâ¥à¥ ¨¤ñâ ¯¥à¥å¢ â í⮣® ¯®àâ ¯à®æ , ¥á«¨ ® ¢ ª®¬ ¤¥  㪠§ )
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LD BC,Z84_SP.LPT2_C
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OUT (C),A
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;[x] 29/9/23
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;LD A,#63
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LD A,63
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;
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OUT (C),A
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LD A,#C0 ; Bit 7 - Select (1), Bit 6 - Auto_Line_Feed (1)
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OUT (Z84_SP.LPT2_D),A
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LD A,#0F ; Init printer port for Out
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OUT (Z84_SP.LPT1_C),A
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RET
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;/////////////////////////////////////////////////////////////////////// |