clean-up of driver return codes
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@@ -58,8 +58,9 @@ JOY_COUNT = 2 ; Number of joysticks we support
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;
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INSTALL:
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lda #<JOY_ERR_OK
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ldx #>JOY_ERR_OK
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lda #JOY_ERR_OK
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.assert JOY_ERR_OK = 0, error
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tax
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; rts ; Run into UNINSTALL instead
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; ------------------------------------------------------------------------
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@@ -157,8 +157,9 @@ SER_CLOSE:
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; Done, return an error code
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lda #<SER_ERR_OK
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tax ; A is zero
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lda #SER_ERR_OK
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.assert SER_ERR_OK = 0, error
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tax
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rts
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;----------------------------------------------------------------------------
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@@ -225,22 +226,23 @@ SER_OPEN:
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; Done
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lda #<SER_ERR_OK
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tax ; A is zero
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lda #SER_ERR_OK
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.assert SER_ERR_OK = 0, error
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tax
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rts
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; Invalid parameter
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InvParam:
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lda #<SER_ERR_INIT_FAILED
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ldx #>SER_ERR_INIT_FAILED
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lda #SER_ERR_INIT_FAILED
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ldx #0 ; return value is char
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rts
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; Baud rate not available
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InvBaud:
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lda #<SER_ERR_BAUD_UNAVAIL
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ldx #>SER_ERR_BAUD_UNAVAIL
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lda #SER_ERR_BAUD_UNAVAIL
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ldx #0 ; return value is char
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rts
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;----------------------------------------------------------------------------
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@@ -261,8 +263,8 @@ SER_GET:
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@L1: lda RecvFreeCnt ; (25)
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cmp #$ff
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bne @L2
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lda #<SER_ERR_NO_DATA
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ldx #>SER_ERR_NO_DATA
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lda #SER_ERR_NO_DATA
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ldx #0 ; return value is char
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rts
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; Check for flow stopped & enough free: release flow control
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@@ -309,7 +311,7 @@ SER_PUT:
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@L2: ldx SendFreeCnt
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bne @L3
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lda #<SER_ERR_OVERFLOW ; X is already zero
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lda #SER_ERR_OVERFLOW ; X is already zero
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rts
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@L3: ldx SendTail
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@@ -318,7 +320,8 @@ SER_PUT:
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dec SendFreeCnt
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lda #$ff
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jsr TryToSend
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lda #<SER_ERR_OK
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lda #SER_ERR_OK
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.assert SER_ERR_OK = 0, error
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tax
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rts
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@@ -331,7 +334,8 @@ SER_STATUS:
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lda ACIA_STATUS
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ldx #0
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sta (ptr1,x)
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txa ; SER_ERR_OK
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.assert SER_ERR_OK = 0, error
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txa
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rts
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;----------------------------------------------------------------------------
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@@ -341,8 +345,8 @@ SER_STATUS:
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;
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SER_IOCTL:
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lda #<SER_ERR_INV_IOCTL ; We don't support ioclts for now
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ldx #>SER_ERR_INV_IOCTL
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lda #SER_ERR_INV_IOCTL ; We don't support ioclts for now
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ldx #0 ; return value is char
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rts ; Run into IRQ instead
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;----------------------------------------------------------------------------
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