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Clean up module loading and images

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This commit is contained in:
David Schmenk 2024-03-07 18:36:47 -08:00
parent 1d099df299
commit c23cb6d239
8 changed files with 8 additions and 13 deletions
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images/apple/A1PLASMA.po Executable file
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images/apple/PLASMA-2.1-INST.po
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images/apple/PLFORTH.PO
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11
src/vmsrc/apple/a1cmd.pla
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@ -988,7 +988,6 @@ def loadmod(mod)#1
if loadmod(moddep) < 0
return -perr
fin
prstr("Loaded "); prstr(@str); crout
fin
moddep = moddep + dcitos(moddep, @str)
loop
@ -1033,12 +1032,10 @@ def loadmod(mod)#1
//
// Run through the DeFinition Dictionary.
//
prstr("Bytecode = "); prword(bytecode); crout
while ^rld == $02
//
// This is a bytcode def entry - add it to the def directory.
//
prstr("Add DEF: "); prword(rld=>1 + defofst); prstr(" -> "); prword(deflast); crout
adddef(rld=>1 + defofst, @deflast)
rld = rld + 4
loop
@ -1048,7 +1045,7 @@ def loadmod(mod)#1
while ^rld
rld, addr, fixup = reloc(modfix, modofst, bytecode, rld)
if ^rld
*addr = ^rld & $10 ?? *addr + lookupextern(esd, rld->3) :: lookupdef(fixup + defofst, deftbl)
*addr = ^rld & $10 ?? *addr + lookupextern(esd, rld->3) :: lookupdef(fixup, deftbl)
rld = rld + 4
fin
loop
@ -1062,12 +1059,11 @@ def loadmod(mod)#1
//
// EXPORT symbol - add it to the global symbol table.
//
addr = esd=>1 + defofst // modofst
addr = esd=>1 + modofst
if uword_isge(addr, bytecode)
//
// Use the def directory address for bytecode.
//
//addr = lookupdef(addr + defofst, deftbl)
addr = lookupdef(addr, deftbl)
fin
addsym(sym, addr)
@ -1087,7 +1083,8 @@ def loadmod(mod)#1
//
fixup = modkeep
if init
fixup = adddef(init + defofst, @deflast)()
init = init + defofst
fixup = adddef(init, @deflast)()
if fixup < 0
perr = -fixup
fin

10
src/vmsrc/apple/cmd.pla
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@ -979,7 +979,7 @@ def adddef(addr, deflast)#1
return defentry
end
def loadmod(mod)#1
word rdlen, modsize, bytecode, codefix, defofst, defcnt, init, initcode[], fixup
word rdlen, modsize, bytecode, defofst, defcnt, init, initcode[], fixup
word addr, defaddr, modaddr, modfix, modofst, modend
word deftbl, deflast
word moddep, rld, esd, sym
@ -1074,15 +1074,13 @@ def loadmod(mod)#1
modofst = modfix - RELADDR
modend = modaddr + modsize
bytecode = defofst + modofst
defofst = bytecode - defofst
rld = modend // Re-Locatable Directory
esd = rld // Extern+Entry Symbol Directory
while ^esd // Scan to end of ESD
esd = esd + 4
loop
esd = esd + 1
defaddr = bytecode
codefix = defaddr - bytecode
defofst = defaddr - defofst
//
// Run through the DeFinition Dictionary.
//
@ -1099,7 +1097,7 @@ def loadmod(mod)#1
while ^rld
rld, addr, fixup = reloc(modfix, modofst, bytecode, rld)
if ^rld
*addr = ^rld & $10 ?? *addr + lookupextern(esd, rld->3) :: lookupdef(fixup + codefix, deftbl)
*addr = ^rld & $10 ?? *addr + lookupextern(esd, rld->3) :: lookupdef(fixup, deftbl)
rld = rld + 4
fin
loop
@ -1118,7 +1116,7 @@ def loadmod(mod)#1
//
// Use the def directory address for bytecode.
//
addr = lookupdef(addr + codefix, deftbl)
addr = lookupdef(addr, deftbl)
fin
addsym(sym, addr)
fin