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Marked inlined parseDecimalDigit uses

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Clanmaster21 2019-10-21 15:22:08 +01:00 committed by GitHub
parent df18adfae7
commit 8093bef9cb
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9
apps/ed/cmd.asm
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@ -89,8 +89,11 @@ cmdParse:
jr z, .dot jr z, .dot
cp '$' cp '$'
jr z, .eof jr z, .eof
; inline parseDecimalDigit
add a, 0xff-'9' ; maps '0'-'9' onto 0xf6-0xff add a, 0xff-'9' ; maps '0'-'9' onto 0xf6-0xff
sub 0xff-9 ; maps to 0-9 and carries if not a digit sub 0xff-9 ; maps to 0-9 and carries if not a digit
jr c, .notHandled jr c, .notHandled
; straight number ; straight number
ld a, ABSOLUTE ld a, ABSOLUTE
@ -122,8 +125,11 @@ cmdParse:
inc hl ; advance cmd cursor inc hl ; advance cmd cursor
ld a, (hl) ld a, (hl)
ld de, 1 ; if .pmNoSuffix ld de, 1 ; if .pmNoSuffix
; inline parseDecimalDigit
add a, 0xff-'9' ; maps '0'-'9' onto 0xf6-0xff add a, 0xff-'9' ; maps '0'-'9' onto 0xf6-0xff
sub 0xff-9 ; maps to 0-9 and carries if not a digit sub 0xff-9 ; maps to 0-9 and carries if not a digit
jr c, .pmNoSuffix jr c, .pmNoSuffix
call .parseDecimalM ; --> DE call .parseDecimalM ; --> DE
.pmNoSuffix: .pmNoSuffix:
@ -151,8 +157,11 @@ cmdParse:
.loop: .loop:
inc hl inc hl
ld a, (hl) ld a, (hl)
; inline parseDecimalDigit
add a, 0xff-'9' ; maps '0'-'9' onto 0xf6-0xff add a, 0xff-'9' ; maps '0'-'9' onto 0xf6-0xff
sub 0xff-9 ; maps to 0-9 and carries if not a digit sub 0xff-9 ; maps to 0-9 and carries if not a digit
jr nc, .loop jr nc, .loop
; We're at the first non-digit char. Let's save it because we're going ; We're at the first non-digit char. Let's save it because we're going
; to temporarily replace it with a null. ; to temporarily replace it with a null.