Merge z80c.fs and boot.fs into boot.z80
This commit is contained in:
Virgil Dupras
parent
41ed70f8cb
commit
4967c2add2
@ -3,8 +3,7 @@ TARGETS = forth/forth
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BOOTSRCS = ./forth/conf.fs \
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../forth/xcomp.fs \
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./forth/xcomp.fs \
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../forth/boot.fs \
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../forth/z80c.fs \
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../forth/boot.z80 \
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../forth/icore.fs \
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./forth/xstop.fs
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@ -331,3 +331,440 @@ PC ORG @ 0x2c + ! ( doesWord )
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HL INCss,
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D (HL) LDrr,
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0x0e JPnn, ( 0e == compiledWord )
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( Core words )
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KEY and EMIT are not defined here. There're
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expected to be defined in platform-specific code. )
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CODE EXECUTE
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DE POPqq,
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chkPS,
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0x33 JPnn, ( 33 == execute )
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( a b c -- b c a )
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CODE ROT
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HL POPqq, ( C )
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DE POPqq, ( B )
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BC POPqq, ( A )
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chkPS,
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DE PUSHqq, ( B )
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HL PUSHqq, ( C )
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BC PUSHqq, ( A )
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;CODE
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( a -- a a )
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CODE DUP
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HL POPqq, ( A )
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chkPS,
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HL PUSHqq, ( A )
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HL PUSHqq, ( A )
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;CODE
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( a -- )
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CODE DROP
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HL POPqq,
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;CODE
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( a b -- b a )
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CODE SWAP
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HL POPqq, ( B )
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DE POPqq, ( A )
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chkPS,
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HL PUSHqq, ( B )
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DE PUSHqq, ( A )
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;CODE
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( a b -- a b a )
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CODE OVER
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HL POPqq, ( B )
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DE POPqq, ( A )
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chkPS,
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DE PUSHqq, ( A )
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HL PUSHqq, ( B )
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DE PUSHqq, ( A )
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;CODE
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CODE PICK
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HL POPqq,
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chkPS,
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( x2 )
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L SLAr,
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H RLr,
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SP ADDHLss,
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C (HL) LDrr,
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HL INCss,
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B (HL) LDrr,
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( check PS range before returning )
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EXDEHL,
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RAMSTART LDHL(nn), ( RAM+00 == INITIAL_SP )
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DE SUBHLss,
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CC L2 @ JPccnn, ( abortUnderflow )
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BC PUSHqq,
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;CODE
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( a b -- a b a b )
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CODE 2DUP
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HL POPqq, ( B )
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DE POPqq, ( A )
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chkPS,
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DE PUSHqq, ( A )
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HL PUSHqq, ( B )
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DE PUSHqq, ( A )
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HL PUSHqq, ( B )
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;CODE
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( a b -- )
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CODE 2DROP
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HL POPqq,
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HL POPqq,
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chkPS,
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;CODE
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( a b c d -- a b c d a b )
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CODE 2OVER
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HL POPqq, ( D )
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DE POPqq, ( C )
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BC POPqq, ( B )
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EXX, HL POPqq, EXX, ( A )
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chkPS,
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EXX, HL PUSHqq, EXX, ( A )
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BC PUSHqq, ( B )
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DE PUSHqq, ( C )
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HL PUSHqq, ( D )
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EXX, HL PUSHqq, EXX, ( A )
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BC PUSHqq, ( B )
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;CODE
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( a b c d -- c d a b )
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CODE 2SWAP
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HL POPqq, ( D )
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DE POPqq, ( C )
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BC POPqq, ( B )
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EXX, HL POPqq, EXX, ( A )
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chkPS,
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DE PUSHqq, ( C )
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HL PUSHqq, ( D )
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EXX, HL PUSHqq, EXX, ( A )
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BC PUSHqq, ( B )
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;CODE
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CODE AND
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HL POPqq,
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DE POPqq,
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chkPS,
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A E LDrr,
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L ANDr,
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L A LDrr,
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A D LDrr,
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H ANDr,
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H A LDrr,
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HL PUSHqq,
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;CODE
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CODE OR
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HL POPqq,
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DE POPqq,
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chkPS,
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A E LDrr,
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L ORr,
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L A LDrr,
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A D LDrr,
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H ORr,
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H A LDrr,
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HL PUSHqq,
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;CODE
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CODE XOR
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HL POPqq,
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DE POPqq,
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chkPS,
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A E LDrr,
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L XORr,
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L A LDrr,
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A D LDrr,
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H XORr,
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H A LDrr,
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HL PUSHqq,
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;CODE
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CODE NOT
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HL POPqq,
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chkPS,
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A L LDrr,
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H ORr,
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HL 0 LDddnn,
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IFZ,
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( false, make 1 )
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HL INCss,
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THEN,
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HL PUSHqq,
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;CODE
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CODE +
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HL POPqq,
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DE POPqq,
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chkPS,
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DE ADDHLss,
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HL PUSHqq,
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;CODE
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CODE -
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DE POPqq,
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HL POPqq,
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chkPS,
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DE SUBHLss,
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HL PUSHqq,
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;CODE
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CODE *
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DE POPqq,
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BC POPqq,
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chkPS,
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( DE * BC -> DE (high) and HL (low) )
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HL 0 LDddnn,
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A 0x10 LDrn,
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( loop )
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HL ADDHLss,
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E RLr,
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D RLr,
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JRNC, 4 A, ( noinc )
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BC ADDHLss,
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JRNC, 1 A, ( noinc )
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DE INCss,
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( noinc )
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A DECr,
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JRNZ, -14 A, ( loop )
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HL PUSHqq,
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;CODE
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( Borrowed from http://wikiti.brandonw.net/ )
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( Divides AC by DE and places the quotient in AC and the
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remainder in HL )
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CODE /MOD
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DE POPqq,
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BC POPqq,
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chkPS,
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A B LDrr,
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B 16 LDrn,
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HL 0 LDddnn,
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BEGIN, ( loop )
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SCF,
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C RLr,
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RLA,
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HL ADCHLss,
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DE SBCHLss,
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IFC,
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DE ADDHLss,
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C DECr,
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THEN,
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DJNZ, AGAIN, ( loop )
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B A LDrr,
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HL PUSHqq,
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BC PUSHqq,
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;CODE
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CODE !
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HL POPqq,
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DE POPqq,
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chkPS,
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(HL) E LDrr,
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HL INCss,
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(HL) D LDrr,
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;CODE
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CODE @
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HL POPqq,
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chkPS,
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E (HL) LDrr,
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HL INCss,
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D (HL) LDrr,
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DE PUSHqq,
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;CODE
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CODE C!
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HL POPqq,
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DE POPqq,
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chkPS,
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(HL) E LDrr,
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;CODE
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CODE C@
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HL POPqq,
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chkPS,
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L (HL) LDrr,
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H 0 LDrn,
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HL PUSHqq,
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;CODE
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CODE PC!
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BC POPqq,
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HL POPqq,
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chkPS,
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L OUT(C)r,
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;CODE
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CODE PC@
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BC POPqq,
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chkPS,
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H 0 LDrn,
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L INr(C),
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HL PUSHqq,
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;CODE
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CODE I
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L 0 IX+ LDrIXY,
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H 1 IX+ LDrIXY,
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HL PUSHqq,
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;CODE
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CODE I'
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L 2 IX- LDrIXY,
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H 1 IX- LDrIXY,
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HL PUSHqq,
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;CODE
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CODE J
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L 4 IX- LDrIXY,
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H 3 IX- LDrIXY,
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HL PUSHqq,
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;CODE
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CODE >R
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HL POPqq,
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chkPS,
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( 17 == pushRS )
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17 CALLnn,
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;CODE
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CODE R>
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( 20 == popRS )
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20 CALLnn,
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HL PUSHqq,
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;CODE
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CODE BYE
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HALT,
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;CODE
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CODE (resSP)
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( INITIAL_SP == RAM+0 )
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SP RAMSTART LDdd(nn),
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;CODE
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CODE (resRS)
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IX RS_ADDR LDddnn,
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;CODE
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CODE S=
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DE POPqq,
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HL POPqq,
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chkPS,
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( pre-push false )
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BC 0 LDddnn,
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BC PUSHqq,
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BEGIN, ( loop )
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LDA(DE),
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(HL) CPr,
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JRNZ, L1 FWR ( not equal? break early to "end".
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NZ is set. )
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A ORr, ( if our char is null, stop )
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HL INCss,
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DE INCss,
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JRNZ, AGAIN, ( loop )
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( success, change false to true )
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HL POPqq,
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HL INCss,
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HL PUSHqq,
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L1 FSET ( end )
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;CODE
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CODE CMP
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HL POPqq,
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DE POPqq,
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chkPS,
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DE SUBHLss,
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BC 0 LDddnn,
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IFNZ,
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( not equal )
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BC INCss,
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IFNC,
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( < )
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BC DECss,
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BC DECss,
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THEN,
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THEN,
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BC PUSHqq,
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;CODE
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( cur w -- a f )
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CODE _find
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HL POPqq, ( w )
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DE POPqq, ( cur )
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chkPS,
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( 3 == find )
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3 CALLnn,
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IFNZ,
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( not found )
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HL PUSHqq,
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DE 0 LDddnn,
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DE PUSHqq,
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JPNEXT,
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THEN,
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( found )
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DE PUSHqq,
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DE 1 LDddnn,
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DE PUSHqq,
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;CODE
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CODE (im1)
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IM1,
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EI,
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;CODE
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CODE 0
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HL 0 LDddnn,
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HL PUSHqq,
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;CODE
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CODE 1
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HL 1 LDddnn,
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HL PUSHqq,
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;CODE
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CODE -1
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HL -1 LDddnn,
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HL PUSHqq,
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;CODE
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CODE 1+
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HL POPqq,
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chkPS,
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HL INCss,
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HL PUSHqq,
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;CODE
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CODE 1-
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HL POPqq,
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chkPS,
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HL DECss,
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HL PUSHqq,
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;CODE
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CODE 2+
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HL POPqq,
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chkPS,
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HL INCss,
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HL INCss,
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HL PUSHqq,
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;CODE
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CODE 2-
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HL POPqq,
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chkPS,
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HL DECss,
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HL DECss,
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HL PUSHqq,
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;CODE
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447
forth/z80c.fs
447
forth/z80c.fs
@ -1,447 +0,0 @@
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( Core words in z80. This requires a full Forth interpreter
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to run, but is also necessary for core.fs. This means that
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it needs to be compiled from a prior bootstrapped binary.
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This stage is tricky due to the fact that references in
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Forth are all absolute, except for prev word refs. This
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means that there are severe limitations to the kind of code
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you can put here. Those limitations are the same as those
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described in icore.fs.
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Oh, also: KEY and EMIT are not defined here. There're
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expected to be defined in platform-specific code.
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This unit expects the same conf as boot.fs.
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)
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CODE EXECUTE
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DE POPqq,
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chkPS,
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0x33 JPnn, ( 33 == execute )
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( a b c -- b c a )
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CODE ROT
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HL POPqq, ( C )
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DE POPqq, ( B )
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BC POPqq, ( A )
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chkPS,
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DE PUSHqq, ( B )
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HL PUSHqq, ( C )
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BC PUSHqq, ( A )
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;CODE
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( a -- a a )
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CODE DUP
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HL POPqq, ( A )
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chkPS,
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HL PUSHqq, ( A )
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HL PUSHqq, ( A )
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;CODE
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( a -- )
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CODE DROP
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HL POPqq,
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;CODE
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( a b -- b a )
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CODE SWAP
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HL POPqq, ( B )
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DE POPqq, ( A )
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chkPS,
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HL PUSHqq, ( B )
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DE PUSHqq, ( A )
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;CODE
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( a b -- a b a )
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CODE OVER
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HL POPqq, ( B )
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DE POPqq, ( A )
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chkPS,
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DE PUSHqq, ( A )
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HL PUSHqq, ( B )
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DE PUSHqq, ( A )
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;CODE
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CODE PICK
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HL POPqq,
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chkPS,
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( x2 )
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L SLAr,
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H RLr,
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SP ADDHLss,
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C (HL) LDrr,
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HL INCss,
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B (HL) LDrr,
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( check PS range before returning )
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EXDEHL,
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RAMSTART LDHL(nn), ( RAM+00 == INITIAL_SP )
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DE SUBHLss,
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CC L2 @ JPccnn, ( abortUnderflow )
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BC PUSHqq,
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;CODE
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( a b -- a b a b )
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CODE 2DUP
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HL POPqq, ( B )
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DE POPqq, ( A )
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chkPS,
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DE PUSHqq, ( A )
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HL PUSHqq, ( B )
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DE PUSHqq, ( A )
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HL PUSHqq, ( B )
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;CODE
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( a b -- )
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CODE 2DROP
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HL POPqq,
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HL POPqq,
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chkPS,
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;CODE
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( a b c d -- a b c d a b )
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CODE 2OVER
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HL POPqq, ( D )
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DE POPqq, ( C )
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BC POPqq, ( B )
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EXX, HL POPqq, EXX, ( A )
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chkPS,
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EXX, HL PUSHqq, EXX, ( A )
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BC PUSHqq, ( B )
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DE PUSHqq, ( C )
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HL PUSHqq, ( D )
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EXX, HL PUSHqq, EXX, ( A )
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BC PUSHqq, ( B )
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;CODE
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( a b c d -- c d a b )
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CODE 2SWAP
|
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HL POPqq, ( D )
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DE POPqq, ( C )
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BC POPqq, ( B )
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EXX, HL POPqq, EXX, ( A )
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chkPS,
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DE PUSHqq, ( C )
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HL PUSHqq, ( D )
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EXX, HL PUSHqq, EXX, ( A )
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BC PUSHqq, ( B )
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;CODE
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CODE AND
|
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HL POPqq,
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DE POPqq,
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chkPS,
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A E LDrr,
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L ANDr,
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L A LDrr,
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A D LDrr,
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H ANDr,
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H A LDrr,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE OR
|
||||
HL POPqq,
|
||||
DE POPqq,
|
||||
chkPS,
|
||||
A E LDrr,
|
||||
L ORr,
|
||||
L A LDrr,
|
||||
A D LDrr,
|
||||
H ORr,
|
||||
H A LDrr,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE XOR
|
||||
HL POPqq,
|
||||
DE POPqq,
|
||||
chkPS,
|
||||
A E LDrr,
|
||||
L XORr,
|
||||
L A LDrr,
|
||||
A D LDrr,
|
||||
H XORr,
|
||||
H A LDrr,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE NOT
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
A L LDrr,
|
||||
H ORr,
|
||||
HL 0 LDddnn,
|
||||
IFZ,
|
||||
( false, make 1 )
|
||||
HL INCss,
|
||||
THEN,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE +
|
||||
HL POPqq,
|
||||
DE POPqq,
|
||||
chkPS,
|
||||
DE ADDHLss,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE -
|
||||
DE POPqq,
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
DE SUBHLss,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE *
|
||||
DE POPqq,
|
||||
BC POPqq,
|
||||
chkPS,
|
||||
( DE * BC -> DE (high) and HL (low) )
|
||||
HL 0 LDddnn,
|
||||
A 0x10 LDrn,
|
||||
( loop )
|
||||
HL ADDHLss,
|
||||
E RLr,
|
||||
D RLr,
|
||||
JRNC, 4 A, ( noinc )
|
||||
BC ADDHLss,
|
||||
JRNC, 1 A, ( noinc )
|
||||
DE INCss,
|
||||
( noinc )
|
||||
A DECr,
|
||||
JRNZ, -14 A, ( loop )
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
( Borrowed from http://wikiti.brandonw.net/ )
|
||||
( Divides AC by DE and places the quotient in AC and the
|
||||
remainder in HL )
|
||||
CODE /MOD
|
||||
DE POPqq,
|
||||
BC POPqq,
|
||||
chkPS,
|
||||
A B LDrr,
|
||||
B 16 LDrn,
|
||||
HL 0 LDddnn,
|
||||
BEGIN, ( loop )
|
||||
SCF,
|
||||
C RLr,
|
||||
RLA,
|
||||
HL ADCHLss,
|
||||
DE SBCHLss,
|
||||
IFC,
|
||||
DE ADDHLss,
|
||||
C DECr,
|
||||
THEN,
|
||||
DJNZ, AGAIN, ( loop )
|
||||
B A LDrr,
|
||||
HL PUSHqq,
|
||||
BC PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE !
|
||||
HL POPqq,
|
||||
DE POPqq,
|
||||
chkPS,
|
||||
(HL) E LDrr,
|
||||
HL INCss,
|
||||
(HL) D LDrr,
|
||||
;CODE
|
||||
|
||||
CODE @
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
E (HL) LDrr,
|
||||
HL INCss,
|
||||
D (HL) LDrr,
|
||||
DE PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE C!
|
||||
HL POPqq,
|
||||
DE POPqq,
|
||||
chkPS,
|
||||
(HL) E LDrr,
|
||||
;CODE
|
||||
|
||||
CODE C@
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
L (HL) LDrr,
|
||||
H 0 LDrn,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE PC!
|
||||
BC POPqq,
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
L OUT(C)r,
|
||||
;CODE
|
||||
|
||||
CODE PC@
|
||||
BC POPqq,
|
||||
chkPS,
|
||||
H 0 LDrn,
|
||||
L INr(C),
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE I
|
||||
L 0 IX+ LDrIXY,
|
||||
H 1 IX+ LDrIXY,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE I'
|
||||
L 2 IX- LDrIXY,
|
||||
H 1 IX- LDrIXY,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE J
|
||||
L 4 IX- LDrIXY,
|
||||
H 3 IX- LDrIXY,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE >R
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
( 17 == pushRS )
|
||||
17 CALLnn,
|
||||
;CODE
|
||||
|
||||
CODE R>
|
||||
( 20 == popRS )
|
||||
20 CALLnn,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE BYE
|
||||
HALT,
|
||||
;CODE
|
||||
|
||||
CODE (resSP)
|
||||
( INITIAL_SP == RAM+0 )
|
||||
SP RAMSTART LDdd(nn),
|
||||
;CODE
|
||||
|
||||
CODE (resRS)
|
||||
IX RS_ADDR LDddnn,
|
||||
;CODE
|
||||
|
||||
CODE S=
|
||||
DE POPqq,
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
( pre-push false )
|
||||
BC 0 LDddnn,
|
||||
BC PUSHqq,
|
||||
BEGIN, ( loop )
|
||||
LDA(DE),
|
||||
(HL) CPr,
|
||||
JRNZ, L1 FWR ( not equal? break early to "end".
|
||||
NZ is set. )
|
||||
A ORr, ( if our char is null, stop )
|
||||
HL INCss,
|
||||
DE INCss,
|
||||
JRNZ, AGAIN, ( loop )
|
||||
( success, change false to true )
|
||||
HL POPqq,
|
||||
HL INCss,
|
||||
HL PUSHqq,
|
||||
L1 FSET ( end )
|
||||
;CODE
|
||||
|
||||
CODE CMP
|
||||
HL POPqq,
|
||||
DE POPqq,
|
||||
chkPS,
|
||||
DE SUBHLss,
|
||||
BC 0 LDddnn,
|
||||
IFNZ,
|
||||
( not equal )
|
||||
BC INCss,
|
||||
IFNC,
|
||||
( < )
|
||||
BC DECss,
|
||||
BC DECss,
|
||||
THEN,
|
||||
THEN,
|
||||
BC PUSHqq,
|
||||
;CODE
|
||||
|
||||
( cur w -- a f )
|
||||
CODE _find
|
||||
HL POPqq, ( w )
|
||||
DE POPqq, ( cur )
|
||||
chkPS,
|
||||
( 3 == find )
|
||||
3 CALLnn,
|
||||
IFNZ,
|
||||
( not found )
|
||||
HL PUSHqq,
|
||||
DE 0 LDddnn,
|
||||
DE PUSHqq,
|
||||
JPNEXT,
|
||||
THEN,
|
||||
( found )
|
||||
DE PUSHqq,
|
||||
DE 1 LDddnn,
|
||||
DE PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE (im1)
|
||||
IM1,
|
||||
EI,
|
||||
;CODE
|
||||
|
||||
CODE 0
|
||||
HL 0 LDddnn,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE 1
|
||||
HL 1 LDddnn,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE -1
|
||||
HL -1 LDddnn,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE 1+
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
HL INCss,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE 1-
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
HL DECss,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE 2+
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
HL INCss,
|
||||
HL INCss,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
CODE 2-
|
||||
HL POPqq,
|
||||
chkPS,
|
||||
HL DECss,
|
||||
HL DECss,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
@ -7,8 +7,7 @@ EMUL = $(BASEDIR)/emul/hw/rc2014/classic
|
||||
BOOTSRCS = conf.fs \
|
||||
$(FDIR)/xcomp.fs \
|
||||
$(EDIR)/xcomp.fs \
|
||||
$(FDIR)/boot.fs \
|
||||
$(FDIR)/z80c.fs \
|
||||
$(FDIR)/boot.z80 \
|
||||
$(BASEDIR)/drv/acia.z80 \
|
||||
$(BASEDIR)/drv/sdc.z80 \
|
||||
$(FDIR)/icore.fs \
|
||||
|
||||
Loading…
Reference in New Issue
Block a user