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Update nabu.asm

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- Fix R16 register addressing
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Wayne Warthen
2024-05-06 13:10:44 -07:00
parent a6505fbbb1
commit 4946b313e1
1 changed files with 2 additions and 2 deletions
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4
Source/HBIOS/nabu.asm
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@@ -50,13 +50,13 @@ NABU_PREINIT:
; PORT B IN READ MODE
;
; SET I/O PORT MODES
LD A,7 ; PSG REGISTER 7 (ENABLE REG)
LD A,7 ; PSG R7 (ENABLE REG)
OUT (NABU_RSEL),A ; SELECT IT
LD A,%01000000 ; PORT B INPUT, PORT A OUPUT
OUT (NABU_RDAT),A ; SET IT
;
; SET PORT A TO VALUE 0
LD A,16 ; PSG REGISTER 16 (PORT A DATA)
LD A,14 ; PSG R16 (PORT A DATA)
OUT (NABU_RSEL),A ; SELECT IT
XOR A ; VALUE 0
OUT (NABU_RDAT),A ; SET IT