mirror of
https://github.com/hsoft/collapseos.git
synced 2024-11-24 12:28:06 +11:00
53 lines
742 B
NASM
53 lines
742 B
NASM
.equ JUMP_PRINTSTR 0x03
|
|
.equ JUMP_PRINTHEX 0x06
|
|
.equ JUMP_SDCINITALIZE 0x09
|
|
.equ JUMP_SDCSENDRECV 0x0c
|
|
.equ JUMP_SDCWAITRESP 0x0f
|
|
.equ JUMP_SDCCMD 0x12
|
|
.equ JUMP_SDCCMDR1 0x15
|
|
.equ JUMP_SDCCMDR7 0x18
|
|
.equ JUMP_SDCREAD 0x1b
|
|
.equ JUMP_SDCSETBLKSIZE 0x1e
|
|
.org 0x9000
|
|
|
|
call JUMP_SDCINITALIZE
|
|
or a
|
|
jp nz, error
|
|
|
|
ld hl, sOk
|
|
call JUMP_PRINTSTR
|
|
|
|
call JUMP_SDCSETBLKSIZE
|
|
or a
|
|
jp nz, error
|
|
|
|
ld hl, sOk
|
|
call JUMP_PRINTSTR
|
|
|
|
; read sector 0
|
|
xor a
|
|
call JUMP_SDCREAD
|
|
or a
|
|
jp nz, error
|
|
|
|
push hl
|
|
ld hl, sOk
|
|
call JUMP_PRINTSTR
|
|
pop hl
|
|
; SDC buffer address is in HL
|
|
; YOLO! print it!
|
|
call JUMP_PRINTSTR
|
|
|
|
ret
|
|
|
|
error:
|
|
call JUMP_PRINTHEX
|
|
ld hl, sErr
|
|
call JUMP_PRINTSTR
|
|
ret
|
|
|
|
sOk:
|
|
.db "Ok", 0xa, 0xd, 0
|
|
sErr:
|
|
.db "Err", 0xa, 0xd, 0
|