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Ver 31
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Michaelangel007
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182
printm.s
182
printm.s
@ -5,7 +5,7 @@
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.feature leading_dot_in_identifiers
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.PC02 ; 65C02
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/* Version 30
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/* Version 31
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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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@ -99,12 +99,12 @@ 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 $1DB = 475 bytes
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With everything enabled printm() takes up $1CB = 459 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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With all 15 features turned OFF the core routines use $62 = 98 bytes.
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With all 15 features turned OFF the core routines use $87 = 98 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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@ -122,19 +122,19 @@ To toggle features on / off change USE_* to 0 or 1:
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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 ; $7E 126 \. $85 (134 bytes)
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USE_BIN_ASC = 0 ; $7E 126 \. $85 (134 bytes)
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USE_BIN_INV = 0 ; $7E 126 /
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USE_DEC_2 = 1 ; $C7 199 \
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USE_DEC_3 = 1 ; $C7 199 \.$F0 (240 bytes)
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USE_DEC_5 = 1 ; $C7 199 /
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USE_DEC_2 = 0 ; $C7 199 \
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USE_DEC_3 = 0 ; $C7 199 \.$F0 (240 bytes)
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USE_DEC_5 = 0 ; $C7 199 /
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USE_DEC_BYTE = 0 ; $DF 223 / sets ENABLE_DEC
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USE_HEX_2 = 1 ; $A0 160 \. $A6 (166 bytes)
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USE_HEX_4 = 1 ; $A0 160 /
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USE_HEX_2 = 0 ; $99 153 \. $9E (158 bytes)
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USE_HEX_4 = 0 ; $99 153 /
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USE_OCT_3 = 0 ; $97 151 \. $9D (157 bytes)
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USE_OCT_6 = 0 ; $97 151 /
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USE_PTR_2 = 0 ; $B1 177 \. $B7 (183 bytes) sets ENABLE_HEX
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USE_PTR_4 = 0 ; $B1 177 /
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USE_STR_A = 1 ; $78 120 \
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USE_STR_A = 0 ; $78 120 \
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USE_STR_C = 0 ; $78 120 > $A6 (166 bytes)
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USE_STR_PASCAL = 0 ; $7A 122 /
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@ -811,6 +811,7 @@ TEXT_DEC_2 PRINTM "Dec2: %#", 0
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TEXT_DEC_3 PRINTM "Dec3: %d", 0
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TEXT_DEC_5 PRINTM "Dec5: %u", 0
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TEXT_DEC_BYTE PRINTM "Byte=%b %b %b %b %b", 0
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;TEXT_DEC_BYTE PRINTM "%b",0
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ARGS_DEC_2
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dw TEXT_DEC_2
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@ -952,9 +953,9 @@ __PRINTM
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.if ENABLE_OCT
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_nOctWidth = OctWidth +1
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.endif
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.if ENABLE_HEX
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_nHexWidth = HexWidth +1
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.endif
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;.if ENABLE_HEX
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; _nHexWidth = HexWidth +1
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;.endif
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; Entry Point
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; ======================================================================
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@ -980,23 +981,33 @@ NextArg
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.if USE_HEX_4
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DEBUG .sprintf( "PrintHex4() @ %X", * )
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PrintHex4:
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LDA #4
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SEC
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.if USE_HEX_2
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;BNE _PrintHex
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db $2C ; BIT $abs skip next instruction
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db $A9 ; LDA #imm skip next 1-byte instruction
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.endif
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.endif
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.if USE_HEX_2
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DEBUG .sprintf( "PrintHex2() @ %X", * )
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PrintHex2:
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LDA #2
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CLC
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.endif
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; Print 16-bit Y,X in hex
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_PrintHex:
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STA _nHexWidth
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JSR NxtArgYX
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JSR NxtArgYX ; A=Y= high byte
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BCC _PrintHexX
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PrintHexAX:
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;TYA - optimization from NxtArgYX above
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JSR PrintHexByte
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_PrintHexX:
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TXA
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PrintHexA:
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JSR PrintHexByte
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BRA NextFormat
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.if 0
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; Print 16-bit Y,X in hex
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; Uses _nHexWidth to limit output width
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PrintHexYX:
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@ -1026,18 +1037,7 @@ DEBUG .sprintf( "PrintHex2() @ %X", * )
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CPX #4 ; _nHexWidth NOTE: self-modifying!
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BNE _HexDigit
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; Intentional fall into reverse BCD
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.endif
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; On Entry: X number of chars to print in buffer _bcd
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; ======================================================================
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.if ENABLE_HEX || ENABLE_DEC || ENABLE_OCT
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PrintReverseBCD
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DEX
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BMI NextFormat
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LDA _bcd, X
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JSR PutChar
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BRA PrintReverseBCD
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.endif ; OLD_PRINT_HEX
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.endif
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; @ Ptr 2 Byte
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@ -1048,31 +1048,28 @@ PrintReverseBCD
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.if USE_PTR_4
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DEBUG .sprintf( "PrintPtr4() @ %X", * )
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PrintPtr4:
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LDA #4
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SEC
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.if USE_PTR_2
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;BNE _PrintPtr
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db $2C ; BIT $abs skip next instruction
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db $A9 ; LDA #imm skip next 1-byte instruction
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.endif
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.endif
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.if USE_PTR_2
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DEBUG .sprintf( "PrintPtr2() @ %X", * )
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PrintPtr2:
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LDA #2
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CLC
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.endif
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_PrintPtr:
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STA _nHexWidth
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JSR NxtArgToTemp
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LDY #$0
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LDA (_temp),Y
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BCC PrintHexA
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TAX
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INY
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LDA (_temp),Y
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TAY
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BRA PrintHexYX ; needs XYtoVal setup
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BRA PrintHexAX ; needs XYtoVal setup
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.endif ; ENABLE_PTR
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@ -1151,12 +1148,14 @@ _Done
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; u Dec 2 Byte (max 5 digits)
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; ======================================================================
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.if ENABLE_DEC
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NEW_PRINT_DEC = 1 ; TODO: FIXME: DEBUG:
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.if USE_DEC_5
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DEBUG .sprintf( "PrintDec5() @ %X", * )
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PrintDec5:
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LDA #5
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LDA #5/2 ; offset into _bcd buffer
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.if USE_DEC_2 || USE_DEC_3
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;BNE _PrintDec ; always
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db $2C ; BIT $abs skip next instruction
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.endif
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.endif
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@ -1164,9 +1163,8 @@ DEBUG .sprintf( "PrintDec5() @ %X", * )
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.if USE_DEC_3
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DEBUG .sprintf( "PrintDec3() @ %X", * )
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PrintDec3:
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LDA #3
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LDA #3/2 ; offset into bcd buffer
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.if USE_DEC_2
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;BNE _PrintDec ; always
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db $2C ; BIT $abs skip next instruction
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.endif
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.endif
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@ -1174,7 +1172,7 @@ DEBUG .sprintf( "PrintDec3() @ %X", * )
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.if USE_DEC_2
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DEBUG .sprintf( "PrintDec2() @ %X", * )
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PrintDec2:
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LDA #2 ; 2 digits
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LDA #0 ; special: print 2 digits
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.endif
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; no .if USE_DEC_BYTE here because ENABLE_DEC already covers that
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@ -1209,51 +1207,51 @@ DEBUG .sprintf( "PrintDec2() @ %X", * )
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BNE @Dec2BCD
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CLD
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NEW_PRINT_DEC = 0 ; TODO: FIXME: DEBUG:
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.if NEW_PRINT_DEC
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DecWidth:
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.endif
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LDX #5 ; was Y
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DEY ; $FF - $FD = 2
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LDY #3 ; was Y, default to 6 digits
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BEQ @EvenBCD
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; Print low nibble, skip high nibble
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@OddBCD: ; X = num digits to print
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LDA _bcd,Y ; __c??? _b_?XX a_YYXX
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JSR HexA
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JSR PutChar
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DEY
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@EvenBCD:
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LDA _bcd,Y ; __c??? _b_?XX a_YYXX
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JSR PrintHexByte
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DEY
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BPL @EvenBCD
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BRA NextFormat ; always
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;JMP NextFormat
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.else
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LDX #5 ; was Y, default to 6 digits
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@BCD2Char: ; NOTE: Digits are reversed!
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LDA _bcd-$FD,Y ; __c??? _b_?XX a_YYXX
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LDA _bcd,Y ; __c??? _b_?XX a_YYXX
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LSR
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LSR
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LSR
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LSR
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CLC
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ADC #'0'+$80
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.if NEW_PRINT_DEC
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JSR PutChar
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.else
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STA _bcd,X ; __c??X _b_YXX aZYYXX
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.endif
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DEX ; was Y
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.if NEW_PRINT_DEC
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BMI NextFormat
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.endif
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LDA _bcd-$FD,Y ; __c??X _b_YXX aZYYXX
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@BCDBotNib:
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LDA _bcd,Y ; __c??X _b_YXX aZYYXX
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AND #$F
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CLC
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ADC #'0'+$80
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.if NEW_PRINT_DEC
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JSR PutChar
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.else
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STA _bcd,X ; __c?XX _bYYXX ZZYYXX
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.endif
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DEY
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DEX
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BPL @BCD2Char
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.if NEW_PRINT_DEC
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BMI NextFormat ; always
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.else
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DecWidth:
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LDX #0 ; _nDecDigits NOTE: self-modifying!
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JMP PrintReverseBCD
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LDX #5 ; _nDecDigits NOTE: self-modifying!
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.endif
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.endif ; ENABLE_DEC
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; ______________________________________________________________________
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; % Bin 1 Byte normal ones, normal zeroes
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@ -1318,7 +1316,7 @@ DEBUG .sprintf( "PrintDecB() @ %X", * )
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PrintBytePos:
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LDY #00 ; 00XX
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LDA #3 ; 3 digits max
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LDA #3/2 ; 3 digits max
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STA _nDecWidth
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JMP PrintDecYX ; needs XYtoVal setup
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.endif ; USE_DEC_BYTE
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@ -1368,8 +1366,17 @@ DEBUG .sprintf( "PrintOct3() @ %X", * )
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BNE @Oct2Asc
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OctWidth:
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LDX #6 ; _nOctDigits NOTE: self-modifying!
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JMP PrintReverseBCD
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.endif ; ENABLE_OCT
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; On Entry: X number of chars to print in buffer _bcd
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; ======================================================================
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;.if ENABLE_DEC || ENABLE_OCT
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PrintReverseBCD
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DEX
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BMI _JumpNextFormat
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LDA _bcd, X
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JSR PutChar
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BRA PrintReverseBCD
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.endif
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; ______________________________________________________________________
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@ -1419,6 +1426,37 @@ DEBUG .sprintf( "PrintStrP() @ %X", * )
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; Utility
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; ----------------------------------------------------------------------
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; Converts A to Hex digits, prints them
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PrintHexByte:
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.out .sprintf( "PrintHexByte @ %X", * )
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JSR HexA
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LDA _temp+0
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JSR PutChar
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PrintHexBotNib:
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LDA _temp+1
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JMP PutChar
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; Converts A to Hex digits, stores two chars in _temp+0, _temp+1
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; @return: A will be bottom nibble in ASCII
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HexA:
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PHA
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LSR
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LSR
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LSR
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LSR
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JSR _HexNib
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STA _temp+0
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PLA
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_HexNib:
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AND #$F
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CMP #$A ; n < 10 ?
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BCC @Hex2Asc
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ADC #6 ; n += 6 $A -> +6 + (C=1) = $11
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@Hex2Asc:
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ADC #'0' + $80 ; inverse=remove #$80
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STA _temp+1
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RTS
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; ======================================================================
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;
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PutChar
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@ -1584,6 +1622,8 @@ MetaFunc
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.endif
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__END
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.out .sprintf( "_bcd @ %X", _bcd )
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.out .sprintf( "printm size: %X (%d bytes)", __LIB_SIZE , __LIB_SIZE )
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DEBUG .sprintf( "Total size: %X (%d bytes)", __END -__MAIN, __END -__MAIN)
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DEBUG .sprintf( "Demo size: %X (%d bytes)", __PRINTM-__MAIN, __PRINTM-__MAIN)
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