mirror of
https://github.com/Michaelangel007/apple2_printm.git
synced 2024-12-11 06:50:34 +00:00
1556 lines
38 KiB
ArmAsm
1556 lines
38 KiB
ArmAsm
; ca65
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.feature c_comments
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.linecont +
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.feature labels_without_colons
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.feature leading_dot_in_identifiers
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.PC02 ; 65C02
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/* Version 42
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printm - a modular micro printf replacement for 65C02
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Michael Pohoreski
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Copyleft {c} Feb, 2016
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Special Thanks: Sheldon for his 65C02 printf() source, qkumba optimizations
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Problem:
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Ideally we want to print an 1:1 mapping of input:output text that includes
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literal and variables. We could do this by using mixed ASCII case:
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- high bit characters would be output "as is"
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- ASCII characters would be interpreted as a variable output.
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__ ___ ____ __ ________ ________
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.byte "X=## Y=### $=$$$$:@@ %%%%%%%%~????????"
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Legend:
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# Print Dec Num
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$ Print Hex Num
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% Print Bin Num
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? Print Bin Num but with 1's in inverse
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@ Print Ptr Val
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_ Chars with underscore represents ASCII characters
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While originally this gives us a nice 1:1 mapping for input:output ...
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... it has 2 problems:
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a) it has to be constructed in pieces
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b) and it is bloated.
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Can we fix (a) ?
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Can we use a more compact printf-style format string
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where we don't waste storing the escape character AND
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toggle the high bit on characters on/off as needed?
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Yes, if we use a macro!
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PRINTM "X=%# Y=%d $=%x:%@ %%~%?"
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Can we fix (b) ?
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Yes, by using an unique meta character that has the width associated with it.
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This is why the cannonical printf() on the 6502 sucks:
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- is bloated by using a meta-character '%' instead of the high bit
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- doesn't provide a standard way to print binary *facepalm*
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- doesn't provide a standard way to print a dereferenced pointer
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- 2 digit, 3 digit and 5 digit decimals requiring wasting "width" characters
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e.g. %2d, %3d, %5d
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When a single character would work instead.
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- printf() is notorious for being bloated. If you don't use
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features you can't turn them off to reclaim the memory used
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by the code (or data)
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Solution:
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Here is a *modular* _micro_ replacement: printm()
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* Literals have the high byte set (APPLE text)
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* Meta characters have the high bit cleared (ASCII)
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$ Hex - print 1 Byte (2 characters)
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x Hex - print 2 Bytes (4 characters)
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@ Ptr - print hex 1 Byte at 16-bit pointer
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& Ptr - print hex 2 Bytes at 16-bit pointer
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# Dec - Print 1 Byte in decimal (max 2 digits)
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d Dec - Print 1 Byte in decimal (max 3 digits)
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u Dec - Print 2 Bytes in decimal (max 5 digits)
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b Dec - Print signed 1 Byte in decimal
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% Bin - Print 8 bits
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? Bin - Print 8 bits but 1's in inverse
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o Oct - Print 1 Byte in octal (max 3 digits)
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O Oct - Print 2 Byte in octal (max 6 digits)
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a Str - APPLE text (high bit set), last char is ASCII
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s Str - C string, zero terminated
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p Str - Pascal string, first byte is string length
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Each option can individually be enabled / disabled
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to control the memory footprint since you probably
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don't need "every" feature. Seriously, when was the last time
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you _needed_ octal? :-)
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printm() has manually been optimized for size. In gcc parlance, `-Os`.
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With everything enabled printm() takes up $1B4 = 436 bytes
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(Plus 2 bytes in zero page.)
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Whoa! I thought you said this was micro!?
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Believe me it is. Here are some of the optimization tricks used:
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1) Using BIT to skip instructions in common entry point
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EntryPointA SEC
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db BIT_ZP ; skip over next instruction
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EntryPointB
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CLC
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...common set up code...
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BCC _CodeForA
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_CodeForB
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_CodeForA
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_CodeForAll
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2) Self-modifying code for dynamic width
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EntryPointA LDA n1
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db BIT_ABS ; skip next instruction
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EntryPointB LDA n2 ; intentional fall into common code
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_SetWidth STA _DynamicWidth+1
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LDX #0
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...code...
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_DynamicWidth
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CPX #n
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3) No CMPs to preserve the Carry flag for common entry points
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4) Jump table is 3 bytes/entry, using 65C02: JUMP (FUNCS+1,X)
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char, word_ptr_to_func
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5) A negative buffer offset so that a register will reach zero
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and we can test for end of processing without using a CMP
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which would trash the carry:
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LDY #$FD ; $00-$FD=-3 bcd[0] bcd[1] bcd[2] bcd[3]
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@DoubleDabble: ; Y=FD Y=FE Y=FF Y=00
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LDA _bcd-$FD,Y
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ADC _bcd-$FD,Y
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STA _bcd-$FD,Y
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INY
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BNE @DoubleDabble
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; When Y=0, we'll be at _bcd[3]
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With all 15 features turned OFF the core routines use $49 = 73 bytes.
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With the common setting (default) features:
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BinAsc, Dec2, Dec3, Dec5, Hex2, Hex4, and StrA
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the size is $117 = 279 bytes
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To toggle features on / off change USE_* to 0 or 1:
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*/
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; NOTE: The Size *also* includes the core routines
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; so the actual implementation size for each feature
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; is actually smaller the size leads you to believe.
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; Also, "common functionality" is also included in the count..
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; core _PrintDec routine.
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;
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; Feature Size Bytes Total Notes
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USE_BIN_ASC = 1 ; $78 120 \. $7E (126 bytes)
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USE_BIN_INV = 0 ; $78 119 /
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USE_DEC_2 = 1 ; $C5 197 \
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USE_DEC_3 = 1 ; $C5 197 \.$EF (239 bytes)
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USE_DEC_5 = 1 ; $C5 197 /
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USE_DEC_BYTE = 0 ; $DE 222 / sets ENABLE_DEC
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USE_HEX_2 = 1 ; $93 147 \. $96 (150 bytes)
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USE_HEX_4 = 1 ; $92 146 /
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USE_OCT_3 = 0 ; $8C 140 \. $92 (146 bytes)
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USE_OCT_6 = 0 ; $8C 140 /
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USE_PTR_2 = 0 ; $A2 162 \. $A5 (165 bytes) sets ENABLE_HEX
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USE_PTR_4 = 0 ; $A1 161 /
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USE_STR_A = 1 ; $71 113 \
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USE_STR_C = 0 ; $71 113 > $9E (158 bytes)
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USE_STR_PASCAL = 0 ; $74 116 /
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/*
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Demo (All features) + Library text dump:
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4000:20 58 FC A9 20 85 E6 A9
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4008:D5 8D 00 20 A9 AA 8D 01
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4010:20 AD D4 41 A2 00 A0 00
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4018:20 11 F4 18 A5 26 6D D2
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4020:41 85 26 AA A4 27 8E D6
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4028:41 8C D7 41 8E D8 41 8C
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4030:D9 41 AD 00 20 A0 00 91
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4038:26 8D DA 41 9C DB 41 8D
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4040:F6 41 8D FA 41 20 9F 41
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4048:8D DC 41 9C DD 41 A0 00
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4050:20 AF 41 A2 D0 A0 41 20
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4058:0E 43 A0 01 20 AF 41 A2
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4060:F4 A0 41 20 0E 43 A0 02
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4068:20 AF 41 A2 F8 A0 41 20
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4070:0E 43 A0 03 20 AF 41 A2
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4078:23 A0 42 20 0E 43 A0 04
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4080:20 AF 41 A2 27 A0 42 20
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4088:0E 43 A0 05 20 AF 41 A2
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4090:2B A0 42 20 0E 43 A0 06
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4098:20 AF 41 A2 2F A0 42 20
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40A0:0E 43 A0 07 20 AF 41 A2
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40A8:5F A0 42 20 0E 43 A0 08
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40B0:20 AF 41 A2 63 A0 42 20
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40B8:0E 43 A0 09 20 AF 41 A2
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40C0:67 A0 42 20 0E 43 A0 0A
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40C8:20 AF 41 A2 6D A0 42 20
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40D0:0E 43 A0 0B 20 AF 41 A2
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40D8:83 A0 42 20 0E 43 A0 0C
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40E0:20 AF 41 A2 87 A0 42 20
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40E8:0E 43 A0 0D 20 AF 41 A2
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40F0:D7 A0 42 20 0E 43 A0 0E
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40F8:20 AF 41 A2 D1 A0 42 20
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4100:0E 43 A0 0F 20 AF 41 A2
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4108:DB A0 42 20 0E 43 A9 11
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4110:20 5B FB A2 DF A0 42 20
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4118:8E 41 AD 0D 43 85 FF 20
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4120:DA FD AD 0C 43 85 FE 20
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4128:DA FD 20 AA 41 20 4C 41
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4130:A2 F1 A0 42 20 8E 41 A2
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4138:0F 86 FE 64 FF 8A 20 DA
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4140:FD 20 AA 41 20 4C 41 A9
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4148:8D 4C ED FD 9C 8D 44 9C
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4150:8E 44 9C 8F 44 A2 10 F8
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4158:06 FE 26 FF A0 FD B9 90
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4160:43 79 90 43 99 90 43 C8
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4168:D0 F4 CA D0 EB D8 A2 05
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4170:88 B9 90 43 4A 4A 4A 4A
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4178:18 69 B0 20 ED FD CA B9
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4180:90 43 29 0F 18 69 B0 20
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4188:ED FD CA 10 E3 60 86 FC
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4190:84 FD A0 00 B1 FC F0 06
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4198:20 ED FD C8 D0 F6 60 A2
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41A0:08 85 FE 06 FE 6A CA D0
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41A8:FA 60 A9 A0 4C ED FD 98
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41B0:20 C1 FB A6 28 A4 29 8E
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41B8:87 44 8C 88 44 60 D8 BD
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41C0:23 A0 D9 BD 64 A0 A4 BD
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41C8:78 BA 40 A0 25 FE 3F 00
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41D0:BE 41 27 00 BF 00 DE C0
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41D8:DE C0 1A DA 1A DA C2 E9
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41E0:EE A0 C1 D3 C3 BA A0 25
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41E8:00 C2 E9 EE A0 C9 CE D6
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41F0:BA A0 3F 00 DE 41 1A DA
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41F8:E9 41 1A DA C4 E5 E3 B2
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4200:BA A0 23 00 C4 E5 E3 B3
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4208:BA A0 64 00 C4 E5 E3 B5
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4210:BA A0 75 00 C2 F9 F4 E5
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4218:BD 62 A0 62 A0 62 A0 62
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4220:A0 62 00 FC 41 63 00 04
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4228:42 E7 03 0C 42 69 FF 14
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4230:42 80 00 FF 00 00 00 01
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4238:00 7F 00 C8 E5 F8 B2 BA
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4240:A0 24 00 C8 E5 F8 B4 BA
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4248:A0 78 00 D0 F4 F2 B2 BA
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4250:A0 78 BA 40 00 D0 F4 F2
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4258:B4 BA A0 78 BA 26 00 3B
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4260:42 34 12 43 42 34 12 4B
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4268:42 00 20 00 20 55 42 00
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4270:20 00 20 CF E3 F4 B3 BA
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4278:A0 6F 00 CF E3 F4 B6 BA
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4280:A0 4F 00 73 42 B6 01 7B
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4288:42 DF 32 C8 C5 CC CC CF
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4290:00 D7 CF D2 CC C4 00 C8
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4298:CF CD 45 0D D0 E1 F3 E3
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42A0:E1 EC A0 CC E5 EE A0 B1
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42A8:B3 C3 A0 A0 A0 A0 A0 BA
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42B0:A0 A7 73 A7 AC A7 73 A7
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42B8:00 C1 F0 F0 EC E5 A0 BA
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42C0:A0 A7 61 A7 00 D0 E1 F3
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42C8:E3 E1 EC BA A0 A7 70 A7
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42D0:00 A9 42 8B 42 91 42 B9
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42D8:42 97 42 C5 42 9B 42 F0
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42E0:F2 E9 EE F4 ED A8 A9 AE
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42E8:F3 E9 FA E5 A0 BD A0 A4
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42F0:00 A0 E2 F9 F4 E5 F3 8D
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42F8:A0 A0 A0 A0 AE E6 E5 E1
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4300:F4 F5 F2 E5 F3 A0 BD A0
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4308:A4 A0 A0 00 B4 01 8E 24
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4310:43 8C 25 43 20 1F 43 8E
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4318:73 43 8C 74 43 80 53 20
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4320:23 43 AA AD DE C0 EE 24
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4328:43 D0 03 EE 25 43 A8 86
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4330:FE 84 FF 60 18 20 1F 43
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4338:90 03 20 61 44 8A 20 61
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4340:44 80 27 18 20 1F 43 A0
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4348:00 B1 FE 90 F1 AA C8 B1
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4350:FE 80 E7 20 1F 43 B2 FE
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4358:10 0B 20 86 44 E6 FE D0
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4360:F5 E6 FF 80 F1 09 80 20
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4368:86 44 EE 73 43 D0 03 EE
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4370:74 43 AD DE C0 F0 BC 30
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4378:EE A2 2D CA CA CA 30 EA
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4380:DD 95 44 D0 F6 7C 96 44
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4388:A9 02 2C A9 01 2C A9 00
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4390:8D B9 43 20 1F 43 9C 8D
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4398:44 9C 8E 44 9C 8F 44 A2
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43A0:10 F8 06 FE 26 FF A0 FD
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43A8:B9 90 43 79 90 43 99 90
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43B0:43 C8 D0 F4 CA D0 EB D8
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43B8:A0 03 F0 0A B9 8D 44 20
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43C0:6E 44 20 86 44 88 B9 8D
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43C8:44 20 61 44 88 10 F7 80
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43D0:99 20 1F 43 8A 10 0A A9
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43D8:AD 20 86 44 8A 49 FF AA
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43E0:E8 86 FE 64 FF A9 01 8D
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43E8:B9 43 80 AA A9 31 2C A9
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43F0:B1 8D 01 44 20 1F 43 A0
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43F8:08 8A 0A AA A9 B0 90 02
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4400:A9 B1 20 86 44 88 D0 F1
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4408:80 C5 A9 06 2C A9 03 8D
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4410:2C 44 20 1F 43 A2 00 A5
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4418:FE 29 07 18 69 B0 9D 8D
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4420:44 A0 03 46 FF 66 FE 88
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4428:D0 F9 E8 E0 06 D0 E8 CA
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4430:30 9D BD 8D 44 20 86 44
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4438:80 F5 20 1F 43 B2 FE F0
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4440:8E 20 86 44 E6 FE D0 F5
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4448:E6 FF 80 F1 20 1F 43 A0
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4450:00 B1 FE F0 B3 AA C8 B1
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4458:FE 20 86 44 CA D0 F7 F0
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4460:A7 20 6E 44 A5 FE 20 86
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4468:44 A5 FF 4C 86 44 48 4A
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4470:4A 4A 4A 20 79 44 85 FE
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4478:68 29 0F C9 0A 90 02 69
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4480:06 69 B0 85 FF 60 8D DE
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4488:C0 EE 87 44 60 00 00 00
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4490:00 00 00 00 00 3F EC 43
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4498:25 EF 43 62 D1 43 75 88
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44A0:43 64 8B 43 23 8E 43 78
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44A8:35 43 24 34 43 26 44 43
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44B0:40 43 43 4F 0A 44 6F 0D
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44B8:44 70 4C 44 73 3A 44 61
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44C0:53 43
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*/
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; Assemble-time diagnostic information
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.macro DEBUG text
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.if 0
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.out text
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.endif
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.endmacro
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; This will take a printf-style string and compact it. The '%' is the escape
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; character to output the next byte in ASCII (high bit clear) and print a var.
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; Otherwise the remaining chars will default to literals having their high bit
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; set. To output a literal '%' you will need to manually add it
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; as the %% outputs confusingly enough is a single ASCII '%' which is print binary
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.macro PRINTM text, endbyte ; text2, text3, text4, text5, text6
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.local h
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h .set $80
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.repeat .strlen(text), I
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.if (.strat(text , I) = '%')
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; handle special case of last char was %
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.if( h = $00 )
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.byte .strat(text, I) ; ASCII % = PrintBin
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h .set $80
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.else
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h .set $00
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.endif
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.else
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.byte .strat(text, I) | h
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h .set $80
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.endif
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.endrep
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.ifnblank endbyte
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.byte endbyte
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.endif
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.endmacro
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; Force APPLE 'text' to have high bit on
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; Will display as NORMAL characters
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.macro APPLE text
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.repeat .strlen(text), I
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.byte .strat(text, I) | $80
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.endrep
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.endmacro
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; Force APPLE 'text' with high bit on but last character has high bit off
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; Will display as NORMAL characters (last character will appear FLASHING)
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; Merlin: Macro Assembler -- Dextral Character Inverted
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.macro DCI text
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.repeat .strlen(text)-1, I
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.byte .strat(text, I) | $80
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.endrep
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.byte .strat(text, .strlen(text)-1) & $7F
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.endmacro
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; Force ASCII 'text' to be control chars: $00..$1F
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; Will display as INVERSE characters
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.macro CTRL text
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.repeat .strlen(text), I
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.byte .strat(text, I) & $1F
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.endrep
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.endmacro
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; Force ASCII 'text' to be control chars: $00..$3F
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; Will display as INVERSE characters
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.macro INV text
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.repeat .strlen(text), I
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.byte .strat(text, I) & $3F
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.endrep
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.endmacro
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.macro PASCAL text
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.byte .strlen(text)
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APPLE text
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.endmacro
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.macro db val
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.byte val
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.endmacro
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.macro dw val
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.word val
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.endmacro
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.macro ds bytes
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.res bytes
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.endmacro
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; Include necessary components based on features requested
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ENABLE_BIN = USE_BIN_ASC || USE_BIN_INV
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ENABLE_DEC = USE_DEC_2 || USE_DEC_3 || USE_DEC_5 || USE_DEC_BYTE
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ENABLE_HEX = USE_HEX_2 || USE_HEX_4 || USE_PTR_2 || USE_PTR_4
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ENABLE_OCT = USE_OCT_3 || USE_OCT_6
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ENABLE_PTR = USE_PTR_2 || USE_PTR_4
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ENABLE_STR = USE_STR_A || USE_STR_C || USE_STR_PASCAL
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NumMeta = 0 + \
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USE_BIN_ASC + \
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USE_BIN_INV + \
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USE_DEC_2 + \
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USE_DEC_3 + \
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USE_DEC_5 + \
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USE_DEC_BYTE + \
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USE_HEX_2 + \
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USE_HEX_4 + \
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USE_OCT_3 + \
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USE_OCT_6 + \
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USE_PTR_2 + \
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USE_PTR_4 + \
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USE_STR_A + \
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USE_STR_C + \
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USE_STR_PASCAL
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DEBUG .sprintf( "Features enabled: %d", NumMeta )
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; Only used by demo
|
|
BASL = $28 ; TXT pointer to cursor
|
|
BASH = $29
|
|
GBASL = $26 ; HGR pointer to cursor
|
|
GBASH = $27
|
|
HGRPAGE = $E6 ; used by HPOSN
|
|
HPOSN = $F411 ; A=row, X=col.lo,Y=col.hi, sets GBASL, GBASH
|
|
BASCALC = $FBC1 ; A=row, sets BASL, BASH
|
|
HOME = $FC58
|
|
TABV = $FB5B
|
|
COUT = $FDED
|
|
PRBYTE = $FDDA ; print A in hex
|
|
demoptr = $FC
|
|
demotmp = $FE
|
|
|
|
__MAIN = $4000
|
|
; DOS3.3 meta -- remove these 2 if running under ProDOS
|
|
.word __MAIN ; 2 byte BLOAD address
|
|
.word __END - __MAIN ; 2 byte BLOAD size
|
|
|
|
/*
|
|
|
|
Output:
|
|
|
|
X=39 Y=191 $=3FF7:D5 11010101~10101011
|
|
Bin ASC: 11010101
|
|
Bin INV: 11010101
|
|
Dec2: 99
|
|
Dec3: 999
|
|
Dec5: 65385
|
|
Byte=-128 -001 000 001 127
|
|
Hex2: 34
|
|
Hex4: 1234
|
|
Ptr2: 2000:D5
|
|
Ptr4: 2000:AAD5
|
|
Oct3: 666
|
|
Oct6: 031337
|
|
Apple : 'HOME'
|
|
C : 'HELLO','WORLD'
|
|
Pascal: 'Pascal Len 13'
|
|
|
|
printm().size = $0209 000521 bytes
|
|
.features = $ 0F 000015
|
|
*/
|
|
|
|
.org __MAIN ; .org must come after header else offsets are wrong
|
|
|
|
; Demo printm
|
|
JSR HOME
|
|
|
|
LDA #$20
|
|
STA HGRPAGE
|
|
|
|
LDA #$D5
|
|
STA $2000
|
|
LDA #$AA
|
|
STA $2001
|
|
|
|
LDA ARGS_DEMO+4 ;HGR Y row
|
|
LDX #$00 ; HGR x.col_lo = 0
|
|
LDY #$00 ; x.col_hi = 0
|
|
JSR HPOSN
|
|
CLC
|
|
LDA GBASL
|
|
ADC ARGS_DEMO+2 ; HGR x col
|
|
STA GBASL
|
|
TAX
|
|
LDY GBASH
|
|
|
|
STX ARGS_DEMO+6 ; aArg[3]
|
|
STY ARGS_DEMO+7
|
|
STX ARGS_DEMO+8 ; aArg[4]
|
|
STY ARGS_DEMO+9
|
|
|
|
LDA $2000
|
|
LDY #0
|
|
STA (GBASL),Y
|
|
STA ARGS_DEMO+10 ; aArg[5]
|
|
STZ ARGS_DEMO+11
|
|
|
|
STA ARGS_BIN_ASC+2
|
|
STA ARGS_BIN_INV+2
|
|
|
|
JSR ReverseByte
|
|
STA ARGS_DEMO+12 ; aArg[6]
|
|
STZ ARGS_DEMO+13
|
|
|
|
.if ENABLE_BIN && ENABLE_DEC && ENABLE_HEX
|
|
LDY #0
|
|
JSR VTABY
|
|
LDX #<ARGS_DEMO ; Low Byte of Address
|
|
LDY #>ARGS_DEMO ; High Byte of Address
|
|
JSR PrintM
|
|
.endif
|
|
|
|
.if ENABLE_BIN
|
|
DEBUG "+BIN"
|
|
.if USE_BIN_ASC
|
|
DEBUG "____:ASC"
|
|
LDY #1
|
|
JSR VTABY
|
|
LDX #<ARGS_BIN_ASC
|
|
LDY #>ARGS_BIN_ASC
|
|
JSR PrintM
|
|
.endif
|
|
.if USE_BIN_INV
|
|
DEBUG "____:INV"
|
|
LDY #2
|
|
JSR VTABY
|
|
LDX #<ARGS_BIN_INV
|
|
LDY #>ARGS_BIN_INV
|
|
JSR PrintM
|
|
.endif
|
|
.endif
|
|
|
|
.if ENABLE_DEC
|
|
DEBUG "+DEC"
|
|
.if USE_DEC_2
|
|
DEBUG "____:Dec2"
|
|
LDY #3
|
|
JSR VTABY
|
|
LDX #<ARGS_DEC_2
|
|
LDY #>ARGS_DEC_2
|
|
JSR PrintM
|
|
.endif
|
|
.if USE_DEC_3
|
|
DEBUG "____:Dec3"
|
|
LDY #4
|
|
JSR VTABY
|
|
LDX #<ARGS_DEC_3
|
|
LDY #>ARGS_DEC_3
|
|
JSR PrintM
|
|
.endif
|
|
.if USE_DEC_5
|
|
DEBUG "____:Dec5"
|
|
LDY #5
|
|
JSR VTABY
|
|
LDX #<ARGS_DEC_5
|
|
LDY #>ARGS_DEC_5
|
|
JSR PrintM
|
|
.endif
|
|
.if USE_DEC_BYTE
|
|
DEBUG "____:DecB"
|
|
LDY #6
|
|
JSR VTABY
|
|
LDX #<ARGS_DEC_BYTE
|
|
LDY #>ARGS_DEC_BYTE
|
|
JSR PrintM
|
|
.endif ; USE_DEC_BYTE
|
|
.endif
|
|
|
|
.if ENABLE_HEX
|
|
DEBUG "+HEX"
|
|
.if USE_HEX_2
|
|
DEBUG "____:Hex2"
|
|
LDY #7
|
|
JSR VTABY
|
|
LDX #<ARGS_HEX_2
|
|
LDY #>ARGS_HEX_2
|
|
JSR PrintM
|
|
.endif
|
|
.if USE_HEX_4
|
|
DEBUG "____:Hex4"
|
|
LDY #8
|
|
JSR VTABY
|
|
LDX #<ARGS_HEX_4
|
|
LDY #>ARGS_HEX_4
|
|
JSR PrintM
|
|
.endif
|
|
.if USE_PTR_2
|
|
DEBUG "____:Ptr2"
|
|
LDY #9
|
|
JSR VTABY
|
|
LDX #<ARGS_PTR_2
|
|
LDY #>ARGS_PTR_2
|
|
JSR PrintM
|
|
.endif
|
|
.if USE_PTR_4
|
|
DEBUG "____:Ptr4"
|
|
LDY #10
|
|
JSR VTABY
|
|
LDX #<ARGS_PTR_4
|
|
LDY #>ARGS_PTR_4
|
|
JSR PrintM
|
|
.endif
|
|
.endif
|
|
|
|
.if ENABLE_OCT
|
|
DEBUG "+OCT"
|
|
.if USE_OCT_3
|
|
DEBUG "____:Oct3"
|
|
LDY #11
|
|
JSR VTABY
|
|
LDX #<ARGS_OCT_3
|
|
LDY #>ARGS_OCT_3
|
|
JSR PrintM
|
|
.endif
|
|
.if USE_OCT_6
|
|
DEBUG "____:Oct6"
|
|
LDY #12
|
|
JSR VTABY
|
|
LDX #<ARGS_OCT_6
|
|
LDY #>ARGS_OCT_6
|
|
JSR PrintM
|
|
.endif
|
|
.endif
|
|
|
|
.if ENABLE_STR
|
|
DEBUG "+STR"
|
|
|
|
.if USE_STR_A
|
|
DEBUG "____:StrA"
|
|
LDY #13
|
|
JSR VTABY
|
|
LDX #<ARGS_STR_A
|
|
LDY #>ARGS_STR_A
|
|
JSR PrintM
|
|
.endif
|
|
|
|
.if USE_STR_C
|
|
DEBUG "____:StrC"
|
|
LDY #14
|
|
JSR VTABY
|
|
LDX #<ARGS_STR_C
|
|
LDY #>ARGS_STR_C
|
|
JSR PrintM
|
|
.endif
|
|
|
|
.if USE_STR_PASCAL
|
|
DEBUG "____:StrP"
|
|
LDY #15
|
|
JSR VTABY
|
|
LDX #<ARGS_STR_PASCAL
|
|
LDY #>ARGS_STR_PASCAL
|
|
JSR PrintM
|
|
.endif
|
|
.endif ; ENABLE_STR
|
|
|
|
LDA #17
|
|
JSR TABV
|
|
|
|
; "old-skool" text/hex printing: use ROM funcs
|
|
LDX #<PRINTM_TEXT
|
|
LDY #>PRINTM_TEXT
|
|
JSR PrintStringZ
|
|
|
|
LDA PRINTM_SIZE+1
|
|
STA demotmp+1
|
|
JSR PRBYTE
|
|
LDA PRINTM_SIZE+0
|
|
STA demotmp+0
|
|
JSR PRBYTE
|
|
|
|
JSR PrintSpc
|
|
JSR PrintDec
|
|
|
|
LDX #<PRINTM_CMDS
|
|
LDY #>PRINTM_CMDS
|
|
JSR PrintStringZ
|
|
|
|
LDX #NumMeta
|
|
STX demotmp+0
|
|
STZ demotmp+1
|
|
TXA
|
|
JSR PRBYTE
|
|
|
|
JSR PrintSpc
|
|
JSR PrintDec
|
|
|
|
LDA #$8D
|
|
JMP COUT
|
|
|
|
; ======================================================================
|
|
|
|
; ds 256 - <*
|
|
|
|
; Print demotmp in Decimal
|
|
; NOTE: Can't use printm PrintDec5 as it may not be enabled/available
|
|
PrintDec
|
|
STZ _bcd+0
|
|
STZ _bcd+1
|
|
STZ _bcd+2
|
|
|
|
LDX #16 ; 16 bits
|
|
SED ; Double Dabble
|
|
@Dec2BCD:
|
|
ASL demotmp+0
|
|
ROL demotmp+1
|
|
|
|
LDY #$FD
|
|
@DoubleDabble:
|
|
LDA _bcd-$FD,Y
|
|
ADC _bcd-$FD,Y
|
|
STA _bcd-$FD,Y
|
|
INY
|
|
BNE @DoubleDabble
|
|
|
|
DEX
|
|
BNE @Dec2BCD
|
|
CLD
|
|
|
|
LDX #2 ; print 3 BCD bytes
|
|
@BCD2Char: ; NOTE: Digits are reversed!
|
|
DEY ; $FF - $FD = 2
|
|
LDA _bcd-$FD,Y ; __c??? _b_?XX a_YYXX
|
|
LSR
|
|
LSR
|
|
LSR
|
|
LSR
|
|
CLC
|
|
ADC #'0'+$80
|
|
JSR COUT ; __c??X _b_YXX aZYYXX
|
|
LDA _bcd-$FD,Y ; __c??X _b_YXX aZYYXX
|
|
AND #$F
|
|
CLC
|
|
ADC #'0'+$80
|
|
JSR COUT ; __c?XX _bYYXX ZZYYXX
|
|
DEX
|
|
BPL @BCD2Char
|
|
RTS
|
|
|
|
; NOTE: Can't use printm PrintStr*() as it may not be enabled/available
|
|
PrintStringZ
|
|
STX demoptr+0
|
|
STY demoptr+1
|
|
LDY #0
|
|
@_Text
|
|
LDA (demoptr),Y
|
|
BEQ @_Done
|
|
JSR COUT
|
|
INY
|
|
BNE @_Text
|
|
@_Done
|
|
RTS
|
|
|
|
ReverseByte
|
|
LDX #8
|
|
STA demotmp ; temp working byte
|
|
ReverseBit
|
|
ASL demotmp ; temp working byte
|
|
ROR
|
|
DEX
|
|
BNE ReverseBit
|
|
RTS
|
|
|
|
PrintSpc
|
|
LDA #' '+$80
|
|
JMP COUT
|
|
|
|
VTABY TYA
|
|
JSR BASCALC
|
|
LDX BASL
|
|
LDY BASH
|
|
STX PutChar+1
|
|
STY PutChar+2
|
|
RTS
|
|
|
|
; ______________________________________________________________________
|
|
|
|
TEXT_DEMO
|
|
;byte "X=## Y=ddd $=xxxx:@@ %%%%%%%%~????????"
|
|
PRINTM "X=%# Y=%d $=%x:%@ %%~%?", 0
|
|
|
|
ARGS_DEMO
|
|
dw TEXT_DEMO; aArg[ 0] text
|
|
dw 39 ; aArg[ 1] x
|
|
dw 191 ; aArg[ 2] y
|
|
dw $C0DE ; aArg[ 3] addr ScreenAddr
|
|
dw $C0DE ; aArg[ 4] byte ScreenAddr pointer
|
|
dw $DA1A ; aArg[ 5] bits ScreenByte
|
|
dw $DA1A ; aArg[ 6] bits ScreenByte reversed
|
|
|
|
; ______________________________________________________________________
|
|
|
|
TEXT_BIN_ASC PRINTM "Bin ASC: %%", 0
|
|
TEXT_BIN_INV PRINTM "Bin INV: %?", 0
|
|
|
|
ARGS_BIN_ASC
|
|
dw TEXT_BIN_ASC
|
|
dw $DA1A
|
|
|
|
ARGS_BIN_INV
|
|
dw TEXT_BIN_INV
|
|
dw $DA1A
|
|
|
|
; ______________________________________________________________________
|
|
|
|
TEXT_DEC_2 PRINTM "Dec2: %#", 0
|
|
TEXT_DEC_3 PRINTM "Dec3: %d", 0
|
|
TEXT_DEC_5 PRINTM "Dec5: %u", 0
|
|
TEXT_DEC_BYTE PRINTM "Byte=%b %b %b %b %b", 0
|
|
;TEXT_DEC_BYTE PRINTM "%b",0
|
|
|
|
ARGS_DEC_2
|
|
dw TEXT_DEC_2
|
|
dw 99 ;
|
|
|
|
ARGS_DEC_3
|
|
dw TEXT_DEC_3
|
|
dw 999 ;
|
|
|
|
ARGS_DEC_5
|
|
dw TEXT_DEC_5
|
|
dw $FF69 ; $FF69 = 65385
|
|
|
|
ARGS_DEC_BYTE
|
|
dw TEXT_DEC_BYTE
|
|
dw $80 ; -128
|
|
dw $FF ; -001
|
|
dw $00 ; 000
|
|
dw $01 ; +001
|
|
dw $7F ; +127
|
|
|
|
; ______________________________________________________________________
|
|
|
|
TEXT_HEX_2 PRINTM "Hex2: %$", 0
|
|
TEXT_HEX_4 PRINTM "Hex4: %x", 0
|
|
TEXT_PTR_2 PRINTM "Ptr2: %x:%@", 0
|
|
TEXT_PTR_4 PRINTM "Ptr4: %x:%&", 0
|
|
|
|
ARGS_HEX_2
|
|
dw TEXT_HEX_2
|
|
dw $1234
|
|
|
|
ARGS_HEX_4
|
|
dw TEXT_HEX_4
|
|
dw $1234
|
|
|
|
ARGS_PTR_2
|
|
dw TEXT_PTR_2
|
|
dw $2000
|
|
dw $2000
|
|
|
|
ARGS_PTR_4
|
|
dw TEXT_PTR_4
|
|
dw $2000
|
|
dw $2000
|
|
|
|
; ______________________________________________________________________
|
|
|
|
TEXT_OCT_3 PRINTM "Oct3: %o", 0
|
|
TEXT_OCT_6 PRINTM "Oct6: %O", 0
|
|
|
|
ARGS_OCT_3
|
|
dw TEXT_OCT_3
|
|
dw 438
|
|
|
|
ARGS_OCT_6
|
|
dw TEXT_OCT_6
|
|
dw 13023
|
|
|
|
; ______________________________________________________________________
|
|
|
|
TEXT_HELLO
|
|
APPLE "HELLO"
|
|
db 0
|
|
|
|
TEXT_WORLD
|
|
APPLE "WORLD"
|
|
db 0
|
|
|
|
TEXT_DCI
|
|
DCI "HOME"
|
|
|
|
TEXT_PASCAL
|
|
PASCAL "Pascal Len 13"
|
|
|
|
|
|
TEXT_STR_C
|
|
PRINTM "C : '%s','%s'", 0
|
|
TEXT_STR_A
|
|
PRINTM "Apple : '%a'", 0
|
|
TEXT_STR_PASCAL
|
|
PRINTM "Pascal: '%p'", 0
|
|
|
|
ARGS_STR_C
|
|
dw TEXT_STR_C
|
|
dw TEXT_HELLO
|
|
dw TEXT_WORLD
|
|
|
|
|
|
ARGS_STR_A
|
|
dw TEXT_STR_A
|
|
dw TEXT_DCI
|
|
|
|
ARGS_STR_PASCAL
|
|
dw TEXT_STR_PASCAL
|
|
dw TEXT_PASCAL
|
|
|
|
; ______________________________________________________________________
|
|
|
|
PRINTM_TEXT APPLE "printm().size = $"
|
|
db 0
|
|
|
|
PRINTM_CMDS APPLE " bytes"
|
|
db $8D
|
|
APPLE " .features = $ "
|
|
db 0
|
|
|
|
__LIB_SIZE = __END - __PRINTM
|
|
|
|
PRINTM_SIZE
|
|
dw __LIB_SIZE
|
|
|
|
; Pad until end of page so PrintM starts on new page
|
|
; ds (256 - <*) & 7
|
|
; ds (256 - <*) & 15
|
|
; ds (256 - <*)
|
|
|
|
|
|
; ----------------------------------------------------------------------
|
|
; ----------------------------------------------------------------------
|
|
;
|
|
; printm() library code starts here
|
|
;
|
|
; ----------------------------------------------------------------------
|
|
; ----------------------------------------------------------------------
|
|
__PRINTM
|
|
|
|
; pointer for PrintPtr2, PrintPtr4, PrintStrA, PrintStrC, PrintStrP
|
|
_temp = $FE
|
|
|
|
; self-modifying variable aliases
|
|
_pScreen = PutChar +1
|
|
_pFormat = GetFormat +1
|
|
_pArg = NxtArgByte+1
|
|
.if ENABLE_DEC
|
|
_nDecWidth = DecWidth +1
|
|
.endif
|
|
.if ENABLE_OCT
|
|
_nOctWidth = OctWidth +1
|
|
.endif
|
|
|
|
; Entry Point
|
|
; ======================================================================
|
|
; printm( format, args, ... )
|
|
; ======================================================================
|
|
PrintM
|
|
STX _pArg+0
|
|
STY _pArg+1
|
|
FirstArg
|
|
JSR NxtArgYX
|
|
STX _pFormat+0 ; lo
|
|
STY _pFormat+1 ; hi
|
|
BRA GetFormat ; always
|
|
|
|
; ======================================================================
|
|
; @return next arg as 16-bit arg value in Y,X
|
|
|
|
NxtArgToTemp
|
|
NxtArgYX
|
|
JSR NxtArgByte
|
|
TAX
|
|
|
|
; @return _Arg[ _Num ]
|
|
NxtArgByte
|
|
LDA $C0DE ; _pArg NOTE: self-modifying!
|
|
INC _pArg+0 ;
|
|
BNE @_SamePage
|
|
INC _pArg+1 ;
|
|
@_SamePage
|
|
TAY
|
|
|
|
; Callers of NxtToArgYX don't use _temp
|
|
_NxtArgToTemp
|
|
STX _temp+0 ; zero-page for (ZP),Y
|
|
STY _temp+1
|
|
|
|
;XYtoVal
|
|
; STX _val+0 ; may be tempting to move this to NxtArgYX
|
|
; STY _val+1 ;
|
|
_Done
|
|
RTS
|
|
|
|
|
|
; $ Hex 2 Byte
|
|
; x Hex 4 Byte
|
|
; ======================================================================
|
|
.if ENABLE_HEX
|
|
|
|
.if USE_HEX_2
|
|
DEBUG .sprintf( "PrintHex2() @ %X", * )
|
|
PrintHex2:
|
|
CLC
|
|
.endif
|
|
|
|
.if USE_HEX_4
|
|
DEBUG .sprintf( "PrintHex4() @ %X", * )
|
|
PrintHex4:
|
|
.endif
|
|
|
|
; Print 16-bit Y,X in hex
|
|
_PrintHex:
|
|
JSR NxtArgYX ; A=Y= high byte
|
|
BCC _PrintHexX
|
|
|
|
PrintHexAX:
|
|
;TYA - optimization from NxtArgYX above
|
|
JSR PrintHexByte
|
|
_PrintHexX:
|
|
TXA
|
|
PrintHexA:
|
|
JSR PrintHexByte
|
|
BRA NextFormat
|
|
|
|
; @ Ptr 2 Byte
|
|
; & Ptr 4 Byte
|
|
; ======================================================================
|
|
.if ENABLE_PTR
|
|
|
|
.if USE_PTR_2
|
|
DEBUG .sprintf( "PrintPtr2() @ %X", * )
|
|
PrintPtr2:
|
|
CLC
|
|
.endif
|
|
.if USE_PTR_4
|
|
DEBUG .sprintf( "PrintPtr4() @ %X", * )
|
|
PrintPtr4:
|
|
.endif
|
|
|
|
_PrintPtr:
|
|
JSR NxtArgToTemp
|
|
|
|
LDY #$0
|
|
LDA (_temp),Y
|
|
BCC PrintHexA
|
|
TAX
|
|
INY
|
|
LDA (_temp),Y
|
|
BRA PrintHexAX ; needs XYtoVal setup
|
|
.endif ; ENABLE_PTR
|
|
.endif ; ENABLE_HEX
|
|
|
|
|
|
; a String (APPLE text, last byte ASCII)
|
|
; See: DCI
|
|
; ======================================================================
|
|
.if ENABLE_STR
|
|
.if USE_STR_A
|
|
DEBUG .sprintf( "PrintStrA() @ %X", * )
|
|
PrintStrA:
|
|
JSR NxtArgToTemp
|
|
|
|
_PrintStrA:
|
|
LDA (_temp)
|
|
BPL @_LastChar
|
|
JSR PutChar
|
|
INC _temp+0
|
|
BNE _PrintStrA
|
|
INC _temp+1
|
|
BRA _PrintStrA
|
|
@_LastChar: ; intentional fall into ForceHighBit Print
|
|
.endif ; USE_STR_A
|
|
.endif ; ENABLE_STR
|
|
|
|
; ======================================================================
|
|
; Main Read/Eval/Print/Loop of printm()
|
|
; ======================================================================
|
|
; Note: The dummy address $C0DE is to force the assembler
|
|
; to generate a 16-bit address instead of optimizing a ZP operand
|
|
|
|
ForceHighBit
|
|
ORA #$80
|
|
Print ; print literal chars
|
|
JSR PutChar
|
|
NextFormat ; Adjust pointer to next char in format
|
|
INC _pFormat+0
|
|
BNE GetFormat
|
|
INC _pFormat+1
|
|
GetFormat
|
|
LDA $C0DE ; _pFormat NOTE: self-modifying!
|
|
BEQ _Done ; zero-terminated
|
|
BMI Print ; neg = literal
|
|
|
|
; NOTE: If all features are turned off LDX #-1 ca65 throws Range Error
|
|
; NumMeta = _MetaCharEnd - MetaChar
|
|
; LDX #NumMeta-1 ; pos = meta
|
|
; We can't use this equation since it is not const due to the assembler
|
|
; not having defined _MetaCharEnd yet
|
|
; Instead we count the number of features enabled
|
|
GetNumFeatures
|
|
.if (NumMeta > 0)
|
|
LDX #NumMeta*3 ; pos = meta
|
|
.else
|
|
.out "INFO: No meta commands, defaulting to text"
|
|
BRA ForceHighBit
|
|
.endif
|
|
|
|
.if NumMeta
|
|
|
|
FindMeta
|
|
DEX
|
|
DEX
|
|
DEX
|
|
BMI NextFormat
|
|
CMP MetaTable,X
|
|
BNE FindMeta
|
|
CallMeta
|
|
JMP (MetaTable+1,X)
|
|
|
|
; ______________________________________________________________________
|
|
|
|
; # Dec 1 Byte (max 2 digits)
|
|
; d Dec 2 Byte (max 3 digits)
|
|
; u Dec 2 Byte (max 5 digits)
|
|
; ======================================================================
|
|
.if ENABLE_DEC
|
|
|
|
.if USE_DEC_5
|
|
DEBUG .sprintf( "PrintDec5() @ %X", * )
|
|
PrintDec5:
|
|
LDA #5/2 ; offset into _bcd buffer
|
|
.if USE_DEC_2 || USE_DEC_3
|
|
db $2C ; BIT $abs skip next instruction
|
|
.endif
|
|
.endif
|
|
|
|
.if USE_DEC_3
|
|
DEBUG .sprintf( "PrintDec3() @ %X", * )
|
|
PrintDec3:
|
|
LDA #3/2 ; offset into bcd buffer
|
|
.if USE_DEC_2
|
|
db $2C ; BIT $abs skip next instruction
|
|
.endif
|
|
.endif
|
|
|
|
.if USE_DEC_2
|
|
DEBUG .sprintf( "PrintDec2() @ %X", * )
|
|
PrintDec2:
|
|
LDA #0 ; special: print 2 digits
|
|
.endif
|
|
|
|
; no .if USE_DEC_BYTE here because ENABLE_DEC already covers that
|
|
_PrintDec:
|
|
STA _nDecWidth
|
|
JSR NxtArgYX
|
|
|
|
PrintDecYX:
|
|
STZ _bcd+0
|
|
STZ _bcd+1
|
|
STZ _bcd+2
|
|
|
|
Dec2BCD:
|
|
LDX #16 ; 16 bits
|
|
SED ; "Double Dabble"
|
|
@Dec2BCD: ; https://en.wikipedia.org/wiki/Double_dabble
|
|
ASL _temp+0
|
|
ROL _temp+1
|
|
|
|
LDY #$FD ; $00-$FD=-3 bcd[0] bcd[1] bcd[2] bcd[3]
|
|
@DoubleDabble: ; Y=FD Y=FE Y=FF Y=00
|
|
LDA _bcd-$FD,Y
|
|
ADC _bcd-$FD,Y
|
|
STA _bcd-$FD,Y
|
|
INY
|
|
BNE @DoubleDabble
|
|
|
|
DEX
|
|
BNE @Dec2BCD
|
|
CLD
|
|
|
|
DecWidth:
|
|
LDY #3 ; default to 6 digits
|
|
BEQ @EvenBCD ; special case 0 -> only 2 digits
|
|
; otherwise have odd digits,
|
|
; Print low nibble, skip high nibble
|
|
@OddBCD: ; Y = num digits/2 to print
|
|
LDA _bcd,Y ; __c??? _b_?XX a_YYXX
|
|
JSR HexA
|
|
JSR PutChar
|
|
DEY
|
|
@EvenBCD:
|
|
LDA _bcd,Y ; __c??? _b_?XX a_YYXX
|
|
JSR PrintHexByte
|
|
DEY
|
|
BPL @EvenBCD
|
|
.endif
|
|
|
|
_JumpNextFormat1
|
|
BRA NextFormat ; always
|
|
|
|
.if ENABLE_DEC
|
|
|
|
; b Print a signed byte in decimal
|
|
; ======================================================================
|
|
.if USE_DEC_BYTE
|
|
DEBUG .sprintf( "PrintDecB() @ %X", * )
|
|
PrintByte:
|
|
JSR NxtArgYX ; X = low byte, Y=A high byte
|
|
TXA
|
|
BPL PrintBytePos
|
|
LDA #'-' + $80 ; X >= $80 --> $80 (-128) .. $FF (-1)
|
|
JSR PutChar
|
|
TXA
|
|
EOR #$FF ; 2's complement
|
|
TAX
|
|
INX
|
|
PrintBytePos:
|
|
STX _temp+0 ; needs XYtoTemp setup
|
|
STZ _temp+1 ; 00XX
|
|
LDA #3/2 ; 3 digits max
|
|
STA _nDecWidth
|
|
BRA PrintDecYX
|
|
.endif ; USE_DEC_BYTE
|
|
|
|
.endif ; ENABLE_DEC
|
|
|
|
|
|
; ______________________________________________________________________
|
|
|
|
; % Bin 1 Byte normal ones, normal zeroes
|
|
; ? Bin 1 Byte inverse ones, normal zeroes
|
|
; ======================================================================
|
|
.if ENABLE_BIN
|
|
.if USE_BIN_INV
|
|
DEBUG .sprintf( "PrintBinI() @ %X", * )
|
|
PrintBinInv:
|
|
LDA #$31
|
|
.if USE_BIN_ASC
|
|
;BNE _PrintBin
|
|
db $2C ; BIT $abs skip next instruction
|
|
.endif
|
|
.endif ; USE_BIN_INV
|
|
|
|
.if USE_BIN_ASC
|
|
DEBUG .sprintf( "PrintBinA() @ %X", * )
|
|
PrintBinAsc:
|
|
LDA #$B1
|
|
.endif ; USE_BIN_ASC
|
|
|
|
_PrintBin:
|
|
STA _PrintBit+1
|
|
JSR NxtArgYX ; X = low byte, Y=A = high byte
|
|
|
|
LDY #8 ; print 8 bits
|
|
_Bit2Asc:
|
|
TXA
|
|
ASL ; C= A>=$80
|
|
TAX
|
|
LDA #$B0
|
|
BCC _FlipBit
|
|
_PrintBit:
|
|
LDA #$B1 ; 1 -> 31 NOTE: self-modifying!
|
|
_FlipBit:
|
|
JSR PutChar
|
|
DEY
|
|
BNE _Bit2Asc
|
|
.endif ; ENABLE_BIN
|
|
|
|
; Left as exercise for the reader to optimize the jump size :-)
|
|
; 2 bytes short of BRA NextFormat
|
|
_JumpNextFormat2
|
|
; BRA NextFormat ; always
|
|
; JMP NextFormat ; JMP :-(
|
|
BRA _JumpNextFormat1
|
|
|
|
; ______________________________________________________________________
|
|
|
|
; o Print byte in octal (max 3 digits)
|
|
; O Print word in octal (max 6 digits)
|
|
; ======================================================================
|
|
.if ENABLE_OCT
|
|
.if USE_OCT_6
|
|
DEBUG .sprintf( "PrintOct6() @ %X", * )
|
|
PrintOct6:
|
|
LDA #6
|
|
.if USE_OCT_3
|
|
db $2C ; BIT $abs skip next instruction
|
|
.endif
|
|
.endif
|
|
.if USE_OCT_3
|
|
DEBUG .sprintf( "PrintOct3() @ %X", * )
|
|
PrintOct3:
|
|
LDA #3
|
|
.endif
|
|
_PrintOct:
|
|
STA _nOctWidth
|
|
JSR NxtArgYX ; X = low byte
|
|
|
|
LDX #0
|
|
_Oct2Asc:
|
|
LDA _temp
|
|
AND #7
|
|
CLC
|
|
ADC #'0'+$80
|
|
STA _bcd,x ; NOTE: Digits are reversed!
|
|
|
|
LDY #3
|
|
@OctShr:
|
|
LSR _temp+1
|
|
ROR _temp+0
|
|
DEY
|
|
BNE @OctShr
|
|
|
|
INX
|
|
OctWidth:
|
|
CPX #6 ; _nOctDigits NOTE: self-modifying!
|
|
BNE _Oct2Asc ; Intentional fall into reverse BCD
|
|
|
|
; On Entry: X number of chars to print in buffer _bcd
|
|
; ======================================================================
|
|
PrintReverseBCD
|
|
DEX
|
|
BMI _JumpNextFormat1
|
|
LDA _bcd, X
|
|
JSR PutChar
|
|
BRA PrintReverseBCD
|
|
.endif ; ENABLE_OCT
|
|
|
|
; ______________________________________________________________________
|
|
|
|
; s String (C,ASCIIZ)
|
|
; ======================================================================
|
|
.if ENABLE_STR
|
|
.if USE_STR_C
|
|
DEBUG .sprintf( "PrintStrC() @ %X", * )
|
|
PrintStrC:
|
|
JSR NxtArgToTemp
|
|
|
|
@_NextByte:
|
|
LDA (_temp)
|
|
BEQ _JumpNextFormat1
|
|
JSR PutChar
|
|
INC _temp+0
|
|
BNE @_NextByte
|
|
INC _temp+1 ; support strings > 256 chars
|
|
BRA @_NextByte
|
|
.endif
|
|
.endif
|
|
|
|
; p String (Pascal)
|
|
; ======================================================================
|
|
.if ENABLE_STR
|
|
.if USE_STR_PASCAL
|
|
DEBUG .sprintf( "PrintStrP() @ %X", * )
|
|
PrintStrP:
|
|
JSR NxtArgToTemp
|
|
|
|
LDY #$0
|
|
LDA (_temp),Y
|
|
BEQ _JumpNextFormat2
|
|
TAX
|
|
_PrintStrP:
|
|
INY
|
|
LDA (_temp),Y
|
|
JSR PutChar
|
|
DEX
|
|
BNE _PrintStrP
|
|
BEQ _JumpNextFormat2 ; always
|
|
.endif
|
|
.endif ; ENABLE_STR
|
|
|
|
; ----------------------------------------------------------------------
|
|
; Utility
|
|
; ----------------------------------------------------------------------
|
|
|
|
.if ENABLE_HEX || ENABLE_DEC
|
|
; Converts A to Hex digits, prints them
|
|
PrintHexByte:
|
|
DEBUG .sprintf( "PrintHexByte @ %X", * )
|
|
JSR HexA
|
|
LDA _temp+0
|
|
JSR PutChar
|
|
PrintHexBotNib:
|
|
LDA _temp+1
|
|
JMP PutChar
|
|
; Converts A to Hex digits, stores two chars in _temp+0, _temp+1
|
|
; @return: A will be bottom nibble in ASCII
|
|
HexA:
|
|
PHA
|
|
LSR
|
|
LSR
|
|
LSR
|
|
LSR
|
|
JSR _HexNib
|
|
STA _temp+0
|
|
PLA
|
|
_HexNib:
|
|
AND #$F
|
|
CMP #$A ; n < 10 ?
|
|
BCC @Hex2Asc
|
|
ADC #6 ; n += 6 $A -> +6 + (C=1) = $11
|
|
@Hex2Asc:
|
|
ADC #'0' + $80 ; inverse=remove #$80
|
|
STA _temp+1
|
|
RTS
|
|
.endif ; ENABLE_HEX || ENABLE_DEC
|
|
|
|
.endif ; NumMeta
|
|
|
|
; ======================================================================
|
|
;
|
|
PutChar
|
|
.if 1
|
|
STA $C0DE ; _pScreen NOTE: self-modifying!
|
|
INC PutChar+1 ; inc lo
|
|
RTS
|
|
.else ; Alternatively use the monitor ROM char output
|
|
JMP COUT
|
|
.endif
|
|
|
|
;
|
|
; ======================================================================
|
|
|
|
_bcd ds 6 ; 6 chars for printing dec
|
|
|
|
.if NumMeta
|
|
_val dw 0 ; PrintHex2 PrintHex4 temp
|
|
|
|
MetaTable
|
|
|
|
.if ENABLE_BIN
|
|
.if USE_BIN_INV
|
|
db '?' ; PrintBinInv NOTE: 1's printed in inverse
|
|
dw PrintBinInv
|
|
.endif
|
|
.if USE_BIN_ASC
|
|
db '%' ; PrintBinAsc
|
|
dw PrintBinAsc
|
|
.endif
|
|
.endif
|
|
|
|
.if ENABLE_DEC
|
|
.if USE_DEC_BYTE
|
|
db 'b' ; PrintByte NOTE: Signed -128 .. +127
|
|
dw PrintByte
|
|
.endif
|
|
.if USE_DEC_5
|
|
db 'u' ; PrintDec5
|
|
dw PrintDec5
|
|
.endif
|
|
.if USE_DEC_3
|
|
db 'd' ; PrintDec3
|
|
dw PrintDec3
|
|
.endif
|
|
.if USE_DEC_2
|
|
db '#' ; PrintDec2
|
|
dw PrintDec2
|
|
.endif
|
|
.endif
|
|
|
|
.if ENABLE_HEX
|
|
.if USE_HEX_4
|
|
db 'x' ; PrintHex4
|
|
dw PrintHex4
|
|
.endif
|
|
.if USE_HEX_2
|
|
db '$' ; PrintHex2
|
|
dw PrintHex2
|
|
.endif
|
|
.if USE_PTR_4
|
|
db '&' ; PrintPtr4
|
|
dw PrintPtr4
|
|
.endif
|
|
.if USE_PTR_2
|
|
db '@' ; PrintPtr2
|
|
dw PrintPtr2
|
|
.endif
|
|
.endif
|
|
|
|
.if ENABLE_OCT
|
|
.if USE_OCT_6
|
|
db 'O' ; PrintOct6
|
|
dw PrintOct6
|
|
.endif
|
|
.if USE_OCT_3
|
|
db 'o' ; PrintOct3
|
|
dw PrintOct3
|
|
.endif
|
|
.endif
|
|
.if ENABLE_STR
|
|
.if USE_STR_PASCAL
|
|
db 'p' ; PrintStrP NOTE: Pascal string; C printf 'p' is pointer!
|
|
dw PrintStrP
|
|
.endif
|
|
.if USE_STR_C
|
|
db 's' ; PrintStrC NOTE: C string, zero terminated
|
|
dw PrintStrC
|
|
.endif
|
|
.if USE_STR_A
|
|
db 'a' ; PrintStrA NOTE: Last byte is ASCII
|
|
dw PrintStrA
|
|
.endif
|
|
.endif
|
|
|
|
.endif ; NumMeta
|
|
|
|
__END
|
|
|
|
DEBUG .sprintf( "_bcd @ %X", _bcd )
|
|
DEBUG .sprintf( "Demo size: %X (%d bytes)", __PRINTM-__MAIN, __PRINTM-__MAIN)
|
|
DEBUG .sprintf( "Total size: %X (%d bytes)", __END -__MAIN, __END -__MAIN)
|
|
.out .sprintf( "printm size: %X (%d bytes)", __LIB_SIZE , __LIB_SIZE )
|
|
|