|
- sdctMain:
- ld hl, .sWriting
- call printstr
- ld hl, 0
- ld de, SDCT_RAMSTART
- .wLoop:
- ld a, (de)
- ; To avoid overwriting important data and to test the 24-bit addressing,
- ; we set DE to 12 instead of zero
- push de ; <|
- ld de, 12 ; |
- call sdcPutB ; |
- pop de ; <|
- jr nz, .error
- inc hl
- inc de
- ; Stop looping if DE == 0
- xor a
- cp e
- jr nz, .wLoop
- ; print some kind of progress
- call printHexPair
- cp d
- jr nz, .wLoop
- ; Finished writing
- ld hl, .sReading
- call printstr
- ld hl, 0
- ld de, SDCT_RAMSTART
- .rLoop:
- push de ; <|
- ld de, 12 ; |
- call sdcGetB ; |
- pop de ; <|
- jr nz, .error
- ex de, hl
- cp (hl)
- ex de, hl
- jr nz, .notMatching
- inc hl
- inc de
- ; Stop looping if DE == 0
- xor a
- cp d
- jr nz, .rLoop
- cp e
- jr nz, .rLoop
- ; Finished checking
- xor a
- ld hl, .sOk
- jp printstr ; returns
- .notMatching:
- ; error position is in HL, let's preserve it
- ex de, hl
- ld hl, .sNotMatching
- call printstr
- ex de, hl
- jp printHexPair ; returns
- .error:
- ld hl, .sErr
- jp printstr ; returns
-
- .sWriting:
- .db "Writing", 0xd, 0xa, 0
- .sReading:
- .db "Reading", 0xd, 0xa, 0
- .sNotMatching:
- .db "Not matching at pos ", 0xd, 0xa, 0
- .sErr:
- .db "Error", 0xd, 0xa, 0
- .sOk:
- .db "OK", 0xd, 0xa, 0
|
