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SPFN3.Z80
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2000-06-30
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53 lines
;
; SYSLIB Module Name: SPFN3
; Author: Richard Conn
; SYSLIB Version Number: 3.6
; Module Version Number: 1.1
public pfn3
ext cout
;
; Print FCB file name and type pted to by DE on CON:
; Format of Output: xxxxxxxx.yyy <spaces> (0-8 x's, 0-3 y's, req'd spaces)
;
pfn3:
push de ; save regs
push bc
push af
ld c,11 ; 11 chars total
ld b,8 ; 8 chars first
call prfnx
ld a,'.' ; dot
call cout
ld b,3 ; 3 more chars
call prfnx
ld a,c ; get count of spaces
or a ; 0=none
call nz,spacer
pop af ; restore regs
pop bc
pop de
ret
prfnx:
ld a,(de) ; get char
and 7fh ; mask out msb
cp ' ' ; skip space
call nz,prout ; print it
inc de ; pt to next
dec b ; count down
jp nz,prfnx
ret
prout:
dec c ; count chars
jp cout ; print char
spacer:
ld a,' ' ; space over
call cout
dec c ; count down
jp nz,spacer
ret
end