| | 1 | page 255\r |
| | 2 | .z80\r |
| | 3 | \r |
| | 4 | \r |
| | 5 | ; CP/M 3 compatible character i/o\r |
| | 6 | \r |
| | 7 | public ?cinit,?ci,?co,?cist,?cost\r |
| | 8 | public @ctbl\r |
| | 9 | \r |
| | 10 | extrn ff.init,ff.i.st,ff.in,ff.o.st,ff.out\r |
| | 11 | extrn as0init,as0ista,as0inp,as0osta,as0out\r |
| | 12 | extrn as1init,as1ista,as1inp,as1osta,as1out\r |
| | 13 | \r |
| | 14 | include config.inc\r |
| | 15 | include z180reg.inc\r |
| | 16 | include modebaud.inc ; define mode bits and baud eqautes\r |
| | 17 | \r |
| | 18 | \r |
| | 19 | max$device equ 3\r |
| | 20 | \r |
| | 21 | cseg\r |
| | 22 | \r |
| | 23 | ; c = device\r |
| | 24 | \r |
| | 25 | ?cinit: ; init devices\r |
| | 26 | ld b,c\r |
| | 27 | call vector$io\r |
| | 28 | dw ff.init\r |
| | 29 | dw as0init\r |
| | 30 | dw as1init\r |
| | 31 | dw rret\r |
| | 32 | \r |
| | 33 | ; b = device, c = output char, a = input char\r |
| | 34 | \r |
| | 35 | ?ci: ; character input\r |
| | 36 | call vector$io\r |
| | 37 | dw ff.in\r |
| | 38 | dw as0inp\r |
| | 39 | dw as1inp\r |
| | 40 | dw null$input\r |
| | 41 | \r |
| | 42 | ?cist: ; character input status\r |
| | 43 | call vector$io\r |
| | 44 | dw ff.i.st\r |
| | 45 | dw as0ista\r |
| | 46 | dw as1ista\r |
| | 47 | dw null$status\r |
| | 48 | \r |
| | 49 | ?co: ; character output\r |
| | 50 | call vector$io\r |
| | 51 | dw ff.out\r |
| | 52 | dw as0out\r |
| | 53 | dw as1out\r |
| | 54 | dw rret\r |
| | 55 | \r |
| | 56 | ?cost: ; character output status\r |
| | 57 | call vector$io\r |
| | 58 | dw ff.o.st\r |
| | 59 | dw as0osta\r |
| | 60 | dw as1osta\r |
| | 61 | dw ret$true\r |
| | 62 | \r |
| | 63 | vector$io:\r |
| | 64 | ld a,max$device\r |
| | 65 | ld e,b\r |
| | 66 | vector:\r |
| | 67 | pop hl\r |
| | 68 | ld d,0\r |
| | 69 | cp e\r |
| | 70 | jr nc,exist\r |
| | 71 | ld e,a ; use null device if a >= max$device\r |
| | 72 | exist: add hl,de\r |
| | 73 | add hl,de\r |
| | 74 | ld a,(hl)\r |
| | 75 | inc hl\r |
| | 76 | ld h,(hl)\r |
| | 77 | ld l,a\r |
| | 78 | jp (hl)\r |
| | 79 | \r |
| | 80 | \r |
| | 81 | null$input:\r |
| | 82 | ld a,1Ah\r |
| | 83 | rret:\r |
| | 84 | ret\r |
| | 85 | ret$true:\r |
| | 86 | or 0FFh\r |
| | 87 | ret\r |
| | 88 | \r |
| | 89 | null$status:\r |
| | 90 | xor a\r |
| | 91 | ret\r |
| | 92 | \r |
| | 93 | ;--------------------------------------------------------------\r |
| | 94 | \r |
| | 95 | \r |
| | 96 | @ctbl:\r |
| | 97 | db 'HOST ' ; device 0\r |
| | 98 | db mb$in$out\r |
| | 99 | db baud$none\r |
| | 100 | \r |
| | 101 | db 'ASCI0 ' ; device 1\r |
| | 102 | db mb$in$out+mb$serial+mb$soft$baud\r |
| | 103 | ser0$baud:\r |
| | 104 | db baud$19200\r |
| | 105 | \r |
| | 106 | db 'ASCI1 ' ; device 2\r |
| | 107 | db mb$in$out+mb$serial+mb$soft$baud\r |
| | 108 | ser1$baud:\r |
| | 109 | db baud$19200\r |
| | 110 | \r |
| | 111 | db 0 ; table terminator\r |
| | 112 | \r |
| | 113 | end\r |
projects / z180-stamp.git / blame_incremental