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Update some Apple II definitions

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Added a bunch of Applesoft entry points, and updated the F8ROM
definitions.

Added a visualizer for Applesoft shape table shapes that are not part
of an actual shape table.
This commit is contained in:
Andy McFadden 2020-08-12 20:40:56 -07:00
parent c2470c4ec4
commit 31d466f0bd
3 changed files with 73 additions and 8 deletions
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36
SourceGen/RuntimeData/Apple/Applesoft.sym65
View File

@ -74,10 +74,42 @@ BAS_FRMEVL @ $DD7B ;eval expr at TXTPTR (num/str), result into FAC
BAS_SYN_ERROR @ $DEC9 ;throw SYNTAX ERROR
BAS_CHKCOM @ $DEBE ;checks TXTPTR for comma
BAS_ILLQ_ERROR @ $E199 ;throw ILLEGAL QUANTITY ERROR
BAS_GETADR @ $E752 ;convert FAC to 2-byte integer in LINNUM
BAS_GIVAYF @ $E2F2 ;convert 16-bit (A,Y) to float, store in FAC
BAS_SNGFLT @ $E301 ;convert 8-bit int (Y) to FLOAT
BAS_GETBYT @ $E6F8 ;gets byte, in X/FACLO
BAS_QINT @ $EBF2 ;converts FP value in FAC to int in FAC+1..FAC+4
BAS_GETADR @ $E752 ;convert FAC to 2-byte integer in LINNUM
BAS_FSUB @ $E7A7 ;FAC = (Y,A) - FAC
BAS_FADD @ $E7BE ;FAC = (Y,A) + FAC
BAS_CON_ONE @ $E913 ;constant value 1.0
BAS_FMULT @ $E97F ;FAC = (Y,A) * FAC
BAS_LOAD_ARG_FROM_YA @ $E9E3 ;unpack 5-byte val at (Y,A) into ARG
BAS_MUL10 @ $EA39 ;multiply FAC by 10
BAS_CON_TEN @ $EA50 ;constant value 10.0
BAS_FDIV @ $EA66 ;FAC = (Y,A) / FAC
BAS_LOAD_FAC_FROM_YA @ $EAF9 ;unpack 5-byte val at (Y,A) into FAC
BAS_STORE_FAC_AT_YX_ROUNDED @ $EB2B ;round FAC, store at (Y,X)
BAS_SIGN @ $EB82 ;test FAC sign; <,=,> 0 -> A={-1,0,1}
BAS_FLOAT @ $EB93 ;convert value in A to float in FAC
BAS_ABS @ $EBAF ;changes sign of FAC to +
BAS_FCOMP @ $EBB2 ;cmp (Y,A) with FAC; <,=,> -> A={1,0,-1}
BAS_QINT @ $EBF2 ;convert FAC to big-endian int in FAC+1..FAC+4
BAS_INT @ $EC23 ;FAC = floor(FAC)
BAS_LINPRT @ $ED24 ;print float at (A,X) as decimal integer
BAS_PRINT_FAC @ $ED2E ;print FAC to screen
BAS_CON_HALF @ $EE64 ;constant value 0.5
BAS_FPWRT @ $EE97 ;compute exponentiation
BAS_NEGOP @ $EED0 ;negate value in FAC
BAS_RND @ $EFAE ;generate random number
BAS_CON_PI_HALF @ $F066 ;constant value PI/2
BAS_CON_PI_DOUB @ $F06B ;constant value PI*2
BAS_QUARTER @ $F070 ;constant value 0.25
BAS_HGR @ $F3E2 ;switch to hi-res mixed-mode and clear
BAS_HPOSN @ $F411 ;set hi-res position; horiz=(Y,X) vert=A
BAS_HPLOT0 @ $F457 ;plot point; horiz=(Y,X), vert=A
BAS_HGLIN @ $F53A ;draw line from last point to (A,X),Y
BAS_DRAW0 @ $F601 ;draw a shape from addr (Y,X)
BAS_HFNS @ $F6B9 ;get hi-res x/y for hplot
BAS_HCOLOR @ $F6E9 ;set hi-res color
;
; Applesoft BASIC tokens.

14
SourceGen/RuntimeData/Apple/F8-ROM.sym65
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@ -7,6 +7,7 @@
*SYNOPSIS Symbols from the Apple II monitor ROM
; zero page usage
MON_WNDLEFT @ $20 ;left column of scroll window
MON_WNDWDTH @ $21 ;width of scroll window
MON_WNDTOP @ $22 ;top of scroll window
@ -43,6 +44,7 @@ MON_A5H @ $45 ;general purpose
MON_RNDL @ $4E ;low byte of KEYIN "random" value
MON_RNDH @ $4F ;high byte of KEYIN "random" value
; page 3 vectors
MON_BRKV @ $03F0 2 ;address of BRK handler
MON_SOFTEVEC @ $03F2 2 ;address of RESET handler
MON_PWREDUP @ $03F4 ;power-up RESET checksum
@ -50,6 +52,7 @@ MON_USRADDR @ $03F8 3 ;jump to function that handles monitor Ctrl-Y
MON_NMIVEC @ $03FB 3 ;jump to function that handles NMI
MON_IRQADDR @ $03FE 2 ;address of IRQ handler
; monitor entry points
MON_PLOT @ $F800 ;lo-res plot at X=Y-reg, Y=Acc
MON_PLOT1 @ $F80E ;lo-res plot at X=Y-reg, Y per GBASL/H
MON_HLINE @ $F819 ;lo-res horiz line at Y=Acc with X from $2c
@ -118,7 +121,7 @@ MON_NXTA1 @ $FCBA ;increment A1; set carry if A1 >= A2 before inc
MON_HEADR @ $FCC9 ;write cassette sync
MON_WRTAPE @ $FCE5 ;casssette write
MON_RD2BIT @ $FCFA ;cassette read
MON_RDKEY @ $FD0C ;read key
MON_RDKEY @ $FD0C ;read key from input device via $38-39
MON_FD10 @ $FD10
MON_RDKEY1 @ $FD18
MON_KEYIN @ $FD1B ;get next key input from keyboard hardware
@ -132,8 +135,8 @@ MON_CROUT @ $FD8E ;print a carriage return
MON_PRA1 @ $FD92 ;print CR, then hex of A1H/A1L, then minus sign
MON_PRBYTE @ $FDDA ;print Acc as two-digit hex number
MON_PRHEX @ $FDE3 ;print right nibble of Acc as single hex digit
MON_COUT @ $FDED ;print Acc to output device
MON_COUT1 @ $FDF0
MON_COUT @ $FDED ;print Acc to output device via $36-37
MON_COUT1 @ $FDF0 ;print Acc to screen
MON_COUTZ @ $FDF6
MON_IDROUTINE @ $FE1F
MON_MOVE @ $FE2C ;move bytes from A1 to A4 until A1=A2
@ -163,3 +166,8 @@ MON_GETNUM @ $FFA7
MON_NXTCHR @ $FFAD ;part of GETLN input loop
MON_TOSUB @ $FFBE
MON_ZMODE @ $FFC7
; locations defined by the 6502
MON_6502_NMI @ $FFFA ;6502 NMI vector
MON_6502_RESET @ $FFFC ;6502 reset vector
MON_6502_IRQ @ $FFFE ;6502 IRQ vector

31
SourceGen/RuntimeData/Apple/VisShapeTable.cs
View File

@ -41,6 +41,11 @@ namespace RuntimeData.Apple {
/// CCBBBAAA. AAA and BBB specify a direction (up/right/down/left) and whether or
/// not to plot a point. CC cannot specify whether to plot and cannot move up (a 00
/// in CC means "do nothing").
///
/// TODO: optionally render as it would on the hi-res screen. Some shapes draw with
/// HCOLOR=white but use alternating vertical lines to render multiple colors.
/// TODO: support ROT, using Applesoft-style ugly rotation handling. Could also support
/// SCALE but that's only interesting w.r.t. hi-res color changes.
/// </remarks>
public class VisShapeTable : MarshalByRefObject, IPlugin, IPlugin_Visualizer {
// IPlugin
@ -52,6 +57,7 @@ namespace RuntimeData.Apple {
// Visualization identifiers; DO NOT change or projects that use them will break.
private const string VIS_GEN_SHAPE_TABLE = "apple2-shape-table";
private const string VIS_GEN_SHAPE_TABLE_SHAPE = "apple2-shape-table-shape";
private const string P_OFFSET = "offset";
private const string P_INDEX = "index";
@ -65,6 +71,11 @@ namespace RuntimeData.Apple {
new VisParamDescr("Image index",
P_INDEX, typeof(int), 0, 256, 0, 0),
}),
new VisDescr(VIS_GEN_SHAPE_TABLE_SHAPE, "Apple II Shape Table Shape", VisDescr.VisType.Bitmap,
new VisParamDescr[] {
new VisParamDescr("File offset (hex)",
P_OFFSET, typeof(int), 0, 0x00ffffff, VisParamDescr.SpecialMode.Offset, 0),
}),
};
@ -93,14 +104,16 @@ namespace RuntimeData.Apple {
ReadOnlyDictionary<string, object> parms) {
switch (descr.Ident) {
case VIS_GEN_SHAPE_TABLE:
return GenerateBitmap(parms);
return GenerateBitmapFromTable(parms);
case VIS_GEN_SHAPE_TABLE_SHAPE:
return GenerateBitmapFromShape(parms);
default:
mAppRef.ReportError("Unknown ident " + descr.Ident);
return null;
}
}
private IVisualization2d GenerateBitmap(ReadOnlyDictionary<string, object> parms) {
private IVisualization2d GenerateBitmapFromTable(ReadOnlyDictionary<string, object> parms) {
int offset = Util.GetFromObjDict(parms, P_OFFSET, 0);
int shapeIndex = Util.GetFromObjDict(parms, P_INDEX, 0);
@ -123,8 +136,20 @@ namespace RuntimeData.Apple {
}
int shapeOffset = mFileData[offOffset] | (mFileData[offOffset + 1] << 8);
// can't know the length of the shape ahead of time; will need to check as we go
return GenerateBitmap(shapeOffset);
}
private IVisualization2d GenerateBitmapFromShape(ReadOnlyDictionary<string, object> parms) {
int offset = Util.GetFromObjDict(parms, P_OFFSET, 0);
if (offset < 0 || offset >= mFileData.Length) {
mAppRef.ReportError("Invalid parameter");
return null;
}
return GenerateBitmap(offset);
}
private IVisualization2d GenerateBitmap(int shapeOffset) {
// can't know the length of the shape ahead of time; will need to check as we go
int xmin, xmax, ymin, ymax;
xmin = ymin = 1000;
xmax = ymax = -1000;