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Clarify that PAD constants are a software convention #88

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Merged
Rangi42 merged 1 commit into from
Aug 11, 2026
Merged

Clarify that PAD constants are a software convention #88

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4 changes: 2 additions & 2 deletions hardware.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,7 @@ def B_JOYP_SGB_ZERO equ 4 ; 0 = sending 0 bit
def JOYP_SGB_ZERO equ %00_10_0000 ; send 0 bit
def JOYP_SGB_FINISH equ %00_11_0000 ; finish SGB packet transfer

; Combined input byte, with Control Pad in high nybble (conventional order)
; Combined input byte, with Control Pad in high nybble (conventional packed order in software)
def B_PAD_DOWN equ 7
def B_PAD_UP equ 6
def B_PAD_LEFT equ 5
Expand All @@ -104,7 +104,7 @@ def B_PAD_A equ 0
def PAD_B equ 1 << B_PAD_B
def PAD_A equ 1 << B_PAD_A

; Combined input byte, with Control Pad in low nybble (swapped order)
; Combined input byte, with Control Pad in low nybble (swapped order in some software)
def B_PAD_SWAP_START equ 7
def B_PAD_SWAP_SELECT equ 6
def B_PAD_SWAP_B equ 5
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