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Joshua Wise's Git repositories - fpgaboy.git/blame_incremental - flashdiag.asm
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| Commit | Line | Data |
|---|
| | 1 | SECTION "wee",HOME[$0] |
| | 2 | ld sp, $CFFF |
| | 3 | ld hl, $FF60 |
| | 4 | ld a, $FF |
| | 5 | ld [hli], a |
| | 6 | ld [hli], a |
| | 7 | ld [hli], a |
| | 8 | ld a, $90 ; device info |
| | 9 | ld [$FF65], a |
| | 10 | |
| | 11 | call rn+$FF80 |
| | 12 | |
| | 13 | ld a, [$FF65] ; 0000 |
| | 14 | call puthex + $FF80 |
| | 15 | |
| | 16 | call rn+$FF80 |
| | 17 | |
| | 18 | ld a, [$FF65] ; 0000 |
| | 19 | call puthex + $FF80 |
| | 20 | |
| | 21 | call rn+$FF80 |
| | 22 | |
| | 23 | jp $0000 |
| | 24 | |
| | 25 | puthex: |
| | 26 | push af |
| | 27 | swap a |
| | 28 | and $0F |
| | 29 | ld hl, hexdig+$FF80 |
| | 30 | add l |
| | 31 | ld l, a |
| | 32 | ld a, [hl] |
| | 33 | call putc+$FF80 |
| | 34 | pop af |
| | 35 | and $0F |
| | 36 | ld hl, hexdig+$FF80 |
| | 37 | add l |
| | 38 | ld l, a |
| | 39 | ld a, [hl] |
| | 40 | call putc+$FF80 |
| | 41 | ret |
| | 42 | |
| | 43 | hexdig: |
| | 44 | db "0123456789ABCDEF" |
| | 45 | |
| | 46 | putc: |
| | 47 | ld c, $53 |
| | 48 | push af |
| | 49 | .waitport: |
| | 50 | ld a,[c] |
| | 51 | and $01 |
| | 52 | jr nz,.waitport |
| | 53 | pop af |
| | 54 | ld [$FF52],a |
| | 55 | ret |
| | 56 | |
| | 57 | rn: |
| | 58 | ld a, 13 |
| | 59 | call putc+$FF80 |
| | 60 | ld a, 10 |
| | 61 | jr putc |
| | 62 | |
| | 63 | |
| | 64 | section "a", HOME[$7E] |
| | 65 | nop |
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