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https://github.com/dschmenk/PLASMA.git
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First Commodore 64 version!
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David Schmenk
parent
c5d4d7d35f
commit
86408f5157
BIN
PLASMA.D64
Normal file
BIN
PLASMA.D64
Normal file
Binary file not shown.
@ -138,7 +138,7 @@ vmsrc/c64/cmd.a: vmsrc/c64/cmd.pla $(PLASM)
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./$(PLASM) -AOW < vmsrc/c64/cmd.pla > vmsrc/c64/cmd.a
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$(PLVMC64): vmsrc/c64/plvmc64.s vmsrc/c64/cmd.a
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acme -o $(PLVMC64) -l vmsrc/c64/plvmc64.sym vmsrc/c64/plvmc64.s
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acme -f cbm -o $(PLVMC64) -l vmsrc/c64/plvmc64.sym vmsrc/c64/plvmc64.s
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vmsrc/apple/a1cmd.a: vmsrc/apple/a1cmd.pla $(PLASM)
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./$(PLASM) -AOW < vmsrc/apple/a1cmd.pla > vmsrc/apple/a1cmd.a
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@ -1,6 +1,6 @@
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const RELADDR = $1000
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const inbuff = $200
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const freemem = $0006
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const freemem = $0100
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//const inbuff = $0200
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//
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// System flags: memory allocator screen holes.
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//
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@ -18,16 +18,6 @@ const resxhgr2 = $0080
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const modkeep = $1000
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const modinitkeep = $2000
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//
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// CFFA1 addresses.
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//
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const CFFADest = $00
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const CFFAFileName = $02
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const CFFAOldName = $04
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const CFFAFileType = $06
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const CFFAAuxType = $07
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const CFFAFileSize = $09
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const CFFAEntryPtr = $0B
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//
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// Pedefined functions.
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//
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predef syscall(cmd,null)#1, call(addr,areg,xreg,yreg,status)#1
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@ -51,13 +41,9 @@ byte perr, refauto
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//
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// String pool.
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//
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byte inbuff[128]
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byte autorun[] = "AUTORUN"
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byte verstr[] = "\nPLASMA "
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byte freestr[] = "MEM FREE:$"
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byte errorstr[] = "ERR:$"
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byte prompt[] = "PLASMA"
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byte okstr[] = "OK"
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byte huhstr[] = "?\n"
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byte hexchar[] = '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
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//
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// Exported Machine ID.
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@ -195,12 +181,6 @@ CALL6502 JSR $FFFF
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REGVALS !FILL 4
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end
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//
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// QUIT TO MONITOR
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//
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asm quit()#0
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JMP $9000
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end
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//
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// SET MEMORY TO VALUE
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// MEMSET(ADDR, VALUE, SIZE)
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// With optimizations from Peter Ferrie
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@ -725,16 +705,15 @@ end
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//
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asm cout(c)#0
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LDA ESTKL,X
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JSR TOUPR
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ORA #$80
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JMP $FFEF
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INX
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JMP $FFD2
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end
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asm cin()#1
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DEX
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- LDA $D011
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BPL -
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LDA $D010
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STX ESP
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JSR $FFCF
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AND #$7F
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LDX ESP
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STA ESTKL,X
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LDA #$00
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STA ESTKH,X
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@ -755,62 +734,19 @@ def print(i)#0
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cout(i % 10 + '0')
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end
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def rdstr(prompt)#1
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byte ch, maxlen
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maxlen = 0
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byte ch
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inbuff.0 = 0
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cout(prompt)
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repeat
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for inbuff = 0 to 127
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ch = cin
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when ch
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is $15 // right arrow
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if ^inbuff < maxlen //inbuff.0 < maxlen
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inbuff.0++
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ch = inbuff[inbuff.0]
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cout(ch)
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fin
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break
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is $08 // left arrow
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if inbuff.0
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cout('\\')
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cout(inbuff[inbuff.0])
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inbuff.0--
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fin
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break
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is $04 // ctrl-d
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if inbuff.0
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cout('#')
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cout(inbuff[inbuff.0])
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memcpy(inbuff + inbuff.0, inbuff + inbuff.0 + 1, maxlen - inbuff.0)
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maxlen--
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inbuff.0--
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fin
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break
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is $0C // ctrl-l
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crout
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prstr(inbuff)
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break
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is $0D // return
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is $18 // ctrl-x
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crout
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inbuff.0 = 0
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break
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is $9B // escape
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inbuff.0 = 0
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ch = $0D
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break
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otherwise
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if ch >= ' '
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cout(ch)
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inbuff.0++
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inbuff[inbuff.0] = ch
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if inbuff.0 > maxlen
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maxlen = inbuff.0
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fin
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fin
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wend
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until ch == $0D or inbuff.0 == $7F
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cout($0D)
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return inbuff
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if ch == $0D
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break
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fin
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inbuff.0++
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inbuff[inbuff.0] = ch
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next
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crout
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return @inbuff
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end
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def prbyte(v)#0
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cout(hexchar[(v >> 4) & $0F])
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@ -834,27 +770,13 @@ def strcat(dst, src)#1
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return dst
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end
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//
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// CFFA1 routines
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// FILE I/O
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// C64 FILE I/O
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//
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//def opendir
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// perr = syscall($10, 0)
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// return perr
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//end
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//def readdir
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// perr = syscall($12, 0)
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// return *CFFAEntryPtr
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//end
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def finddirentry(filename)#1
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*CFFAFileName = filename
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perr = syscall($14, 0)
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return *CFFAEntryPtr
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return 0
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end
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def readfile(filename, buffer)#1
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*CFFADest = buffer
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*CFFAFileName = filename
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perr = syscall($22, 0)
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return perr
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return 0
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end
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//
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// Heap routines.
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@ -1150,7 +1072,7 @@ heap = *freemem
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//
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// Print PLASMA version
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//
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prstr(@verstr); prbyte(version.1); cout('.'); prbyte(version.0); crout
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prstr("\nPRELIM PLASMA "); prbyte(version.1); cout('.'); prbyte(version.0); crout
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//
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// Init symbol table.
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//
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@ -1176,7 +1098,7 @@ perr = 0
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// Print some startup info.
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//
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if not ^cmdptr
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prstr(@freestr)
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prstr("MEM FREE:$")
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prword(availheap)
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crout
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fin
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@ -1186,24 +1108,24 @@ fin
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while 1
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if ^cmdptr
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when toupper(parsecmd(cmdptr))
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is 'Q'
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quit
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is 'C'
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break
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is '+'
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execmod(cmdptr)
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break
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otherwise
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prstr(@huhstr)
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cout('?')
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wend
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if perr
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prstr(@errorstr)
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prstr("ERR:$")
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prbyte(perr)
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perr = 0
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else
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prstr(@okstr)
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prstr("OK")
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fin
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crout()
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crout
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fin
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prstr(@prompt)
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cmdptr = rdstr($BA)
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prstr("C64 PLASMA")
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cmdptr = rdstr(':')
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loop
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done
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@ -10,8 +10,8 @@
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;*
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!SOURCE "vmsrc/plvmzp.inc"
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DVSIGN = TMP+2
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DROP = $EF
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NEXTOP = $F0
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DROP = $7F
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NEXTOP = $80
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FETCHOP = NEXTOP+1
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IP = FETCHOP+1
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IPL = IP
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@ -21,7 +21,7 @@ OPPAGE = OPIDX+1
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;*
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;* INTERPRETER HEADER+INITIALIZATION
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;*
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*= $0800
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*= $1000
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SEGBEGIN JMP VMINIT
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;*
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;* SYSTEM INTERPRETER ENTRYPOINT
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@ -900,21 +900,27 @@ LEAVE INY ;+INC_IP
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RET RTS
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CMD !SOURCE "vmsrc/c64/cmd.a"
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SEGEND = *
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VMINIT LDY #$10 ; INSTALL PAGE 0 FETCHOP ROUTINE
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VMINIT JSR $FFE7 ; CLOSE ALL CHANNELS
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LDY #$10 ; INSTALL PAGE 0 FETCHOP ROUTINE
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- LDA PAGE0-1,Y
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STA DROP-1,Y
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DEY
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BNE -
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LDA #$4C ; SET JMPTMP OPCODE
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STA JMPTMP
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STY IFPL ; INIT FRAME POINTER
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LDA #$80
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STY IFPL ; INIT FRAME POINTER TO $D000
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LDA #$D0
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STA IFPH
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LDA #<SEGEND ; SAVE HEAP START
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STA SRCL
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STA $0100
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LDA #>SEGEND
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STA SRCH
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STA $0101
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LDX #$FF ; INIT STACK POINTER
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TXS
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LDX #ESTKSZ/2 ; INIT EVAL STACK INDEX
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LDA $01
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AND #$FE ; SWAP OUT BASIC ROM
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STA $01
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JMP CMD
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PAGE0 = *
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!PSEUDOPC DROP {
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