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change opensys to allocate number of I/O buffers for open

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This commit is contained in:
David Schmenk 2018-02-04 13:01:07 -08:00
parent 384c6e8a18
commit 16932e90f7
5 changed files with 78 additions and 36 deletions
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2
src/inc/fileio.plh
View File

@ -38,7 +38,7 @@ import fileio
word setpfx
word getfileinfo
word geteof
word openbuf
word iobufalloc
word open
word close
word read

104
src/libsrc/fileio.pla
View File

@ -27,7 +27,7 @@ struc t_fileio
word setpfx
word getfileinfo
word geteof
word openbuf
word iobufalloc
word open
word close
word read
@ -38,14 +38,14 @@ struc t_fileio
word readblock
word writeblock
end
predef a2getpfx(path), a23setpfx(path), a2getfileinfo(path, fileinfo), a23geteof(refnum), a2openbuf(path, iobuf), a2open(path), a23close(refnum)
predef a2getpfx(path), a23setpfx(path), a2getfileinfo(path, fileinfo), a23geteof(refnum), a2iobufs(iobufs), a2open(path), a2close(refnum)
predef a23read(refnum, buf, len), a2write(refnum, buf, len), a2create(path, type, aux), a23destroy(path)
predef a2newline(refnum, emask, nlchar), a2readblock(unit, buf, block), a2writeblock(unit, buf, block)
//
// Exported function table.
//
word fileio[]
word = @a2getpfx, @a23setpfx, @a2getfileinfo, @a23geteof, @a2openbuf, @a2open, @a23close
word = @a2getpfx, @a23setpfx, @a2getfileinfo, @a23geteof, @a2iobufs, @a2open, @a2close
word = @a23read, @a2write, @a2create, @a23destroy
word = @a2newline, @a2readblock, @a2writeblock
//
@ -53,6 +53,12 @@ word = @a2newline, @a2readblock, @a2writeblock
//
export byte perr
//
// I/O buffers
//
const MAX_IOBUFS = 4
byte iobuf_ref[MAX_IOBUFS]
word iobuf_addr[MAX_IOBUFS] = sysbuf
//
// ProDOS/SOS routines
//
def a1getpfx(path)
@ -128,34 +134,54 @@ def a1open(path)
*CFFA1FileName = path
return 0
end
def a2openbuf(path, iobuf)
byte params[6]
params.0 = 3
params:1 = path
params:3 = iobuf
params.5 = 0
perr = syscall($C8, @params)
return params.5
def a2iobufs(iobufs)
byte i
word freebuf, bufaddr
if iobufs > MAX_IOBUFS
iobufs = MAX_IOBUFS
fin
if iobufs
iobufs-- // Subtract off system I/O buffer
if iobufs
bufaddr = heapallocalign(1024 * iobufs, 8, @freebuf)
for i = 1 to MAX_IOBUFS-1
if not iobuf_addr[i]
iobuf_addr[i] = bufaddr
bufaddr = bufaddr + 1024
iobufs--
if not iobufs
return freebuf
fin
fin
next
return freebuf
fin
else
for i = 1 to MAX_IOBUFS-1
iobuf_addr[i] = 0 // Free I/O buffers if 0 passed in
next
fin
return 0
end
def a13iobufs(iobufs)
return 0
end
def a2open(path)
byte params[6]
params.0 = 3
params:1 = path
params:3 = sysbuf
params.5 = 0
perr = syscall($C8, @params)
return params.5
end
def a3openbuf(path, iobuf)
byte params[7]
params.0 = 4
params:1 = path
params.3 = 0
params:4 = iobuf
params.6 = 0
perr = syscall($C8, @params)
return params.3
byte i, params[6]
for i = 0 to MAX_IOBUFS-1
if iobuf_addr[i] and not iobuf_ref[i]
params.0 = 3
params:1 = path
params:3 = iobuf_addr[i]
params.5 = 0
perr = syscall($C8, @params)
iobuf_ref[i] = params.5
return params.5
fin
next
return 0
end
def a3open(path)
byte params[7]
@ -171,7 +197,22 @@ end
def a1close(refnum)
return perr
end
def a23close(refnum)
def a2close(refnum)
byte i, params[2]
for i = 0 to MAX_IOBUFS-1
if refnum == iobuf_ref[i]
iobuf_ref[i] = 0
params.0 = 1
params.1 = refnum
perr = syscall($CC, @params)
return perr
fin
next
perr = $45
return perr
end
def a3close(refnum)
byte params[2]
params.0 = 1
@ -318,7 +359,9 @@ when MACHID & MACHID_MODEL
is MACHID_III
fileio:getpfx = @a3getpfx
fileio:getfileinfo = @a3getfileinfo
fileio:iobufalloc = @a13iobufs
fileio:open = @a3open
fileio:close = @a3close
fileio:write = @a3write
fileio:create = @a3create
fileio:newline = @a3newline
@ -330,6 +373,7 @@ when MACHID & MACHID_MODEL
fileio:setpfx = @a1setpfx
fileio:getfileinfo = @a1getfileinfo
fileio:geteof = @a1geteof
fileio:iobufalloc = @a13iobufs
fileio:open = @a1open
fileio:close = @a1close
fileio:read = @a1read

2
src/toolsrc/codegen.pla
View File

@ -508,7 +508,7 @@ def init_idglobal#0
fixup_addr = heapalloc(fixup_num*2)
idglobal_tbl = heapalloc(globalbufsz)
idlocal_tbl = heapalloc(localbufsz)
codebufsz = heapavail - 4096
codebufsz = heapavail - 2048
codebuff = heapalloc(codebufsz)
codeptr = codebuff
lastglobal = idglobal_tbl

4
src/toolsrc/lex.pla
View File

@ -343,8 +343,7 @@ def nextln
if incref; puts("Nested INCLUDEs not allowed\n"); exit_err(0); fin
if scan <> STR_TKN; puts("Missing INCLUDE file\n"); exit_err(0); fin
strcpy(@incfile, constval)
sysincbuf = heapallocalign(1024, 8, @sysincfre)
incref = fileio:openbuf(@incfile, sysincbuf)
incref = fileio:open(@incfile)
if not incref
puts("Unable to open INCLUDE file: ")
puts(@incfile)
@ -362,7 +361,6 @@ def nextln
else
if refnum == incref
fileio:close(incref)
heaprelease(sysincfre)
incref = 0
refnum = srcref
parsefile = @srcfile

2
src/toolsrc/plasm.pla
View File

@ -278,7 +278,6 @@ byte outflags
byte refnum, srcref, incref
byte[32] srcfile, incfile, relfile
word parsefile // Pointer to current file
word sysincbuf, sysincfre // System I/O buffer for include files
word srcline // Saved source line number
//
// Scanner variables
@ -464,6 +463,7 @@ if ^arg
fin
fin
if srcfile and relfile
fileio:iobufalloc(2) // Reserve two I/O buffers
srcref = fileio:open(@srcfile)
if srcref
fileio:newline(srcref, $7F, $0D)