MSU1: Minor tweaks to avoid a long jump in main path
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19
msu.asm
19
msu.asm
@@ -553,6 +553,7 @@ MSUMain:
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LDA !REG_MSU_ID_01 : CMP !VAL_MSU_ID_01 : BEQ .continue
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.nomsu
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SEP #$30
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-
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JML SPCContinue
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.continue
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LDA !REG_MSU_ID_23 : CMP !VAL_MSU_ID_23 : BNE .nomsu
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@@ -561,25 +562,23 @@ MSUMain:
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LDX !REG_MUSIC_CONTROL : BEQ +
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JMP .command_ff
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+
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LDA !REG_MSU_DELAYED_COMMAND : BNE + : JMP .do_fade : +
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LDA !REG_MSU_DELAYED_COMMAND : BEQ .do_fade
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.check_busy
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LDA !REG_MSU_STATUS : BIT !FLAG_MSU_STATUS_AUDIO_BUSY : BEQ .ready
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JML SPCContinue
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LDA !REG_MSU_STATUS : BIT !FLAG_MSU_STATUS_AUDIO_BUSY : BNE -
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.ready
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LDA !REG_MSU_STATUS : BIT !FLAG_MSU_STATUS_TRACK_MISSING : BEQ .start
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JML SPCContinue
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LDA !REG_MSU_STATUS : BIT !FLAG_MSU_STATUS_TRACK_MISSING : BNE -
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.start
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LDA !MSU_RESUME_CONTROL : AND !FLAG_RESUME_CANCEL : BEQ +
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LDA !MSU_RESUME_CONTROL : BIT !FLAG_RESUME_CANCEL : BEQ +
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EOR !FLAG_RESUME_CANCEL : STA !MSU_RESUME_CONTROL
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REP #$20 : LDA !REG_MSU_LOADED_TRACK : STA !REG_MSU_TRACK : SEP #$20
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LDA !MSU_RESUME_CONTROL : EOR !FLAG_RESUME_CANCEL : STA !MSU_RESUME_CONTROL
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JML SPCContinue
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BRA -
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+
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LDA !VAL_VOLUME_FULL
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STA !REG_TARGET_VOLUME
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LDA !MSU_RESUME_CONTROL : AND !FLAG_RESUME_FADEIN : BEQ +
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LDA !MSU_RESUME_CONTROL : EOR !FLAG_RESUME_FADEIN : STA !MSU_RESUME_CONTROL
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LDA !MSU_RESUME_CONTROL : BIT !FLAG_RESUME_FADEIN : BEQ +
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EOR !FLAG_RESUME_FADEIN : STA !MSU_RESUME_CONTROL
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LDA #$00
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BRA ++
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+
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