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cleanup of out_dump routine

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Edward R. Gonzalez 2022-01-18 17:15:16 -05:00
parent 7a6799d2c7
commit fb3b3aa33d
4 changed files with 93 additions and 101 deletions
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BIN
16bit.Scratch
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91
16bit.Scratch.s
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@ -21,6 +21,8 @@
;============================================================================================================= ;=============================================================================================================
start: start:
Video_SetTextMode_80x25 Video_SetTextMode_80x25
; Video_SetGraphicsMode_320x200
; Video_SetGraphicsMode_640x200
; Exclusive-OR (xor'ing a value to itself zeros the value) ; Exclusive-OR (xor'ing a value to itself zeros the value)
xor AX, AX xor AX, AX
@ -42,11 +44,11 @@ int SystemService
; Hex Testing ; Hex Testing
String_Out HexTest, [HexTest_len] String_Out HexTest, [HexTest_len]
Hex16_ToString [HexNum], HexString Hex16_ToString [HexNumA], HexStringA
Hex16_ToString [HexNumT], HexStringT Hex16_ToString [HexNumB], HexStringB
String_Out ResultStr, [ResultStr_len] String_Out ResultStr, [ResultStr_len]
String_Out HexString, 4 String_Out HexStringA, 4
String_Out HexStringT, 4 String_Out HexStringB, 4
mov AH, BIOS_Wait mov AH, BIOS_Wait
mov CX, 0x10 mov CX, 0x10
@ -55,84 +57,13 @@ int SystemService
Char_Out char_LF Char_Out char_LF
Char_Out char_CR Char_Out char_CR
mov BX, 0x7C00 DumpOut 0x7C00, 512
; sub BX, 0x7DFF
; mov BX, 0x0000
mov DX, 512
call dump_out
; Idle ; Idle
hang : hang :
jmp short hang jmp short hang
dump_out:
; Args:
; BX = StartLocation
; CX = ByteCount
%define StartLocation BX
%define ByteCount DX
push BX
push SI
; xor BX, BX
xor SI, SI
.loop:
cmp SI, ByteCount
je .break
push BX
push DX
push SI
mov AX, StartLocation
add AX, SI
Hex16_ToString AX, .HexStr
String_Out .HexStr, 4
pop SI
pop DX
pop BX
mov AH, [StartLocation + SI]
add SI, 1
mov AL, [StartLocation + SI]
mov [.HexNum], AX
push BX
push DX
push SI
Char_Out ' '
Hex16_ToString [.HexNum], .HexStr
String_Out .HexStr, 4
pop SI
pop DX
pop BX
Char_Out ' '
mov AH, BIOS_Wait
mov CX, 0x02
int SystemService
; add SI, 4
inc SI
jmp .loop
.break:
pop SI
pop BX
ret
.HexNum : dw 0x0000
.HexStr : dw ' '
%undef StartLocation
%undef WordCount
%include "AAL.x86.routines.s" %include "AAL.x86.routines.s"
@ -145,10 +76,10 @@ TestStr_len : dw 13
HexTest : db 'Hex Test', char_LF, char_CR HexTest : db 'Hex Test', char_LF, char_CR
HexTest_len : dw 10 HexTest_len : dw 10
HexNum : dw 0x1994 HexNumA : dw 0x1994
HexNumT : dw 0x2022 HexNumB : dw 0x2022
HexString : db '0000' HexStringA : db '0000'
HexStringT : db '0000' HexStringB : db '0000'
ResultStr : db 'Result: ' ResultStr : db 'Result: '
ResultStr_len : db 8 ResultStr_len : db 8

25
AAL.x86.routines.macros.s
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@ -12,10 +12,28 @@
int VideoService int VideoService
%endmacro %endmacro
%macro Video_SetGraphicsMode_320x200 0
mov AH, Video_SetMode
mov AL, VideoMode_Graphics_320x200
int VideoService
%endmacro
%macro Video_SetGraphicsMode_640x200 0
mov AH, Video_SetMode
mov AL, VideoMode_Graphics_640x200
int VideoService
%endmacro
;============================================================================================================= ;=============================================================================================================
; Routines ; Routines
;============================================================================================================= ;=============================================================================================================
%macro DumpOut 2
mov BX, %1
mov DX, %2
call out_Dump
%endmacro
%macro Hex16_ToString 2 %macro Hex16_ToString 2
mov DX, %1 mov DX, %1
mov CX, %2 mov CX, %2
@ -25,10 +43,9 @@ call h16_toString
%endmacro %endmacro
%macro Char_Out 1 %macro Char_Out 1
mov AX, %1 mov AH, Video_TeleType
push AX mov AL, %1
call out_char int VideoService
pop AX
%endmacro %endmacro
%macro String_Out 2 %macro String_Out 2

78
AAL.x86.routines.s
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@ -7,6 +7,67 @@
; Routines ; Routines
;============================================================================================================= ;=============================================================================================================
out_Dump:
; Args:
; BX = StartLocation
; CX = ByteCount
%define StartLocation BX
%define ByteCount DX
push BX
push SI
xor SI, SI
.loop:
cmp SI, ByteCount
je .break
push BX
push DX
push SI
mov AX, StartLocation
add AX, SI
Hex16_ToString AX, .HexStr
String_Out .HexStr, 4
pop SI
pop DX
pop BX
Char_Out ' '
; Get next set of byte, organize to big endian.
mov AH, [StartLocation + SI]
add SI, 1
mov AL, [StartLocation + SI]
mov [.HexNum], AX
push BX
push DX
push SI
Hex16_ToString [.HexNum], .HexStr
String_Out .HexStr, 4
pop SI
pop DX
pop BX
Char_Out ' '
mov AH, BIOS_Wait
mov CX, 0x02
int SystemService
inc SI
jmp .loop
.break:
pop SI
pop BX
ret
.HexNum : dw 0x0000
.HexStr : dw ' '
%undef StartLocation
%undef ByteCount
; Prints out a 16-bit hex value. ; Prints out a 16-bit hex value.
h16_toString: h16_toString:
; Arg - DX : Hex Num ; Arg - DX : Hex Num
@ -59,23 +120,6 @@ h16_toString:
ret ret
; Print out an ASCII character.
out_char:
%define arg1 BP + 6
push BX
push BP
mov BP, SP
mov AH, Video_TeleType
mov AL, [arg1]
int VideoService
pop BP
pop BX
%undef arg1
ret
; Print out an ascii string of speicifed length ; Print out an ascii string of speicifed length
out_string: out_string:
; Arg - BX: String ; Arg - BX: String