projects / z180-stamp.git / blame
| Commit | Line | Data |
|---|---|---|
| 30d1329e L |
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 ser.init,ser.ist,ser.in,ser.ost,ser.out\r | |
| 12 | \r | |
| 13 | include config.inc\r | |
| 14 | include z180reg.inc\r | |
| 15 | include modebaud.inc ; define mode bits and baud eqautes\r | |
| 16 | \r | |
| 17 | \r | |
| 18 | max$device equ 2\r | |
| 19 | \r | |
| 20 | cseg\r | |
| 21 | \r | |
| 22 | ; c = device\r | |
| 23 | \r | |
| 24 | ?cinit: ; init devices\r | |
| 25 | ld b,c\r | |
| 26 | call vector$io\r | |
| 27 | dw ff.init\r | |
| 28 | dw ser.init\r | |
| 29 | dw rret\r | |
| 30 | \r | |
| 31 | ; b = device, c = output char, a = input char\r | |
| 32 | \r | |
| 33 | ?ci: ; character input\r | |
| 34 | call vector$io\r | |
| 35 | dw ff.in\r | |
| 36 | dw ser.in\r | |
| 37 | dw null$input\r | |
| 38 | \r | |
| 39 | ?cist: ; character input status\r | |
| 40 | call vector$io\r | |
| 41 | dw ff.i.st\r | |
| 42 | dw ser.ist\r | |
| 43 | dw null$status\r | |
| 44 | \r | |
| 45 | ?co: ; character output\r | |
| 46 | call vector$io\r | |
| 47 | dw ff.out\r | |
| 48 | dw ser.out\r | |
| 49 | dw rret\r | |
| 50 | \r | |
| 51 | ?cost: ; character output status\r | |
| 52 | call vector$io\r | |
| 53 | dw ff.o.st\r | |
| 54 | dw ser.ost\r | |
| 55 | dw ret$true\r | |
| 56 | \r | |
| 57 | vector$io:\r | |
| 58 | ld a,max$device\r | |
| 59 | ld e,b\r | |
| 60 | vector:\r | |
| 61 | pop hl\r | |
| 62 | ld d,0\r | |
| 63 | cp e\r | |
| 64 | jr nc,exist\r | |
| 65 | ld e,a ; use null device if a >= max$device\r | |
| 66 | exist: add hl,de\r | |
| 67 | add hl,de\r | |
| 68 | ld a,(hl)\r | |
| 69 | inc hl\r | |
| 70 | ld h,(hl)\r | |
| 71 | ld l,a\r | |
| 72 | jp (hl)\r | |
| 73 | \r | |
| 74 | \r | |
| 75 | null$input:\r | |
| 76 | ld a,1Ah\r | |
| 77 | rret:\r | |
| 78 | ret\r | |
| 79 | ret$true:\r | |
| 80 | or 0FFh\r | |
| 81 | ret\r | |
| 82 | \r | |
| 83 | null$status:\r | |
| 84 | xor a\r | |
| 85 | ret\r | |
| 86 | \r | |
| 87 | ;--------------------------------------------------------------\r | |
| 88 | \r | |
| 89 | \r | |
| 90 | @ctbl:\r | |
| 91 | db 'HOST ' ; device 0\r | |
| 92 | db mb$output\r | |
| 93 | db baud$none\r | |
| 94 | \r | |
| 95 | db 'ASCI1 ' ; device 0\r | |
| 96 | db mb$in$out+mb$serial+mb$soft$baud\r | |
| 97 | ser1$baud:\r | |
| 98 | db baud$19200\r | |
| 99 | \r | |
| 100 | db 0 ; table terminator\r | |
| 101 | \r | |
| 102 | end\r | |
| 103 | \r |