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Code consolidation

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This commit is contained in:
Virgil Dupras 2019-04-16 08:35:44 -04:00
parent ce49fc15d0
commit af13b0bd00
1 changed files with 20 additions and 25 deletions
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45
parts/shell.asm
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@ -127,6 +127,18 @@ printcrlf:
SHELL_PUTC
ret
; Print the hex char in A
printHex:
push af
push hl
ld hl, SHELL_HEX_FMT
call fmtHexPair
ld a, 2
call printnstr
pop hl
pop af
ret
; Parse command (null terminated) at HL and calls it
shellParse:
push af
@ -204,11 +216,7 @@ shellPrintErr:
ld hl, .str
call printstr
ld hl, SHELL_HEX_FMT
call fmtHexPair
ld a, 2
call printnstr
call printHex
call printcrlf
pop hl
@ -334,31 +342,23 @@ shellParseArgs:
shellMptrCmd:
.db "mptr", 0b011, 0b001, 0
shellMptr:
push de
push hl
; z80 is little endian. in a "ld hl, (nn)" op, L is loaded from the
; first byte, H is loaded from the second.
; reminder: z80 is little-endian
ld a, (hl)
ld (SHELL_MEM_PTR+1), a
inc hl
ld a, (hl)
ld (SHELL_MEM_PTR), a
ld de, (SHELL_MEM_PTR)
ld hl, SHELL_HEX_FMT
ld a, d
call fmtHexPair
ld a, 2
call printnstr
ld a, e
call fmtHexPair
ld a, 2
call printnstr
ld hl, (SHELL_MEM_PTR)
ld a, h
call printHex
ld a, l
call printHex
call printcrlf
pop hl
pop de
xor a
ret
@ -382,12 +382,7 @@ shellPeek:
ld b, a
ld hl, (SHELL_MEM_PTR)
.loop: ld a, (hl)
ex hl, de
ld hl, SHELL_HEX_FMT
call fmtHexPair
ld a, 2
call printnstr
ex hl, de
call printHex
inc hl
djnz .loop
call printcrlf