36 lines
831 B
Plaintext
36 lines
831 B
Plaintext
# 8 bytes burst with 16 transfers. Total 128 bytes per burst.
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# Source fixed address and destination incrementing.
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# Source and destination unprivileged, non-secure data access.
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MOV CCR, SB16 SS64 SAF SP2 DB16 DS64 DAI DP2
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MOV SAR, 0x10311000
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MOV DAR, 0x18200000
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FLUSHP 14
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# Loop until the entire frame has been transferred.
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LP 20 # For height 160.
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# Wait for a burst request.
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WFP 14, burst
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# Transfer 8 scanlines.
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# For width 240:
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#LP 29 # RGB5551 & RGB565, 128 bytes burst
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LP 44 # RGB8, 128 bytes burst
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#LP 59 # RGBA8, 128 bytes burst
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LD
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ST
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LPEND
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LDPB 14 # This must always be conditional on bursts. No idea why. Assembler bug?
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ST
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# Skip gaps swizzle edition™.
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# For width 240 with 256x256 texture:
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#ADDH DAR, 0x100 # RGB5551 & RGB565
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ADDH DAR, 0x180 # RGB8
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#ADDH DAR, 0x200 # RGBA8
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LPEND
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WMB
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SEV 0
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END
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