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Fix the 0/1 values of VDMA_LEN_YES/NO, now VDMA_LEN_ACTIVE/INACTIVE #94

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Merged
Rangi42 merged 2 commits into from
Aug 28, 2026
Merged

Fix the 0/1 values of VDMA_LEN_YES/NO, now VDMA_LEN_ACTIVE/INACTIVE #94

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7a01c61
Fix the 0/1 values of `VDMA_LEN_YES/NO`
Rangi42 Aug 28, 2026
fbcf811
Rename `VDMA_LEN_YES/NO` to `VDMA_LEN_ACTIVE/INACTIVE`
Rangi42 Aug 28, 2026
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6 changes: 3 additions & 3 deletions hardware.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -622,10 +622,10 @@ def B_VDMA_LEN_MODE equ 7 ; on write: VRAM DMA mode [wo]
def VDMA_LEN_MODE_GENERAL equ 0 << B_VDMA_LEN_MODE ; GDMA (general-purpose)
def VDMA_LEN_MODE_HBLANK equ 1 << B_VDMA_LEN_MODE ; HDMA (HBlank)

def B_VDMA_LEN_BUSY equ 7 ; on read: is a VRAM DMA active?
def B_VDMA_LEN_BUSY equ 7 ; on read: is a VRAM DMA active? (0 = yes, 1 = no) [ro]
def VDMA_LEN_BUSY equ 1 << B_VDMA_LEN_BUSY
def VDMA_LEN_NO equ 0 << B_VDMA_LEN_BUSY
def VDMA_LEN_YES equ 1 << B_VDMA_LEN_BUSY
def VDMA_LEN_ACTIVE equ 0 << B_VDMA_LEN_BUSY
def VDMA_LEN_INACTIVE equ 1 << B_VDMA_LEN_BUSY

def VDMA_LEN_SIZE equ %0_1111111 ; how many 16-byte blocks (minus 1) to transfer [r/w]

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6 changes: 4 additions & 2 deletions hardware_compat.inc
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Expand Up @@ -255,8 +255,10 @@ def VDMA_LENB_MODE equ B_VDMA_LEN_MODE
def VDMA_LENF_MODE_HBL equ VDMA_LEN_MODE_HBLANK
def VDMA_LENB_BUSY equ B_VDMA_LEN_BUSY
def VDMA_LENF_BUSY equ VDMA_LEN_BUSY
def VDMA_LENF_NO equ VDMA_LEN_NO
def VDMA_LENF_YES equ VDMA_LEN_YES
def VDMA_LENF_NO equ VDMA_LEN_ACTIVE
def VDMA_LENF_YES equ VDMA_LEN_INACTIVE
def VDMA_LEN_NO equ VDMA_LEN_ACTIVE
def VDMA_LEN_YES equ VDMA_LEN_INACTIVE
def VDMA_LENB_SIZE equ VDMA_LEN_SIZE

def RPF_READ equ RP_READ
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