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mirror of https://github.com/dschmenk/PLASMA.git synced 2024-07-20 13:28:56 +00:00
This commit is contained in:
David Schmenk 2017-11-16 10:46:44 -08:00
commit 2b49e136d1
6 changed files with 251 additions and 22 deletions

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@ -1,6 +1,6 @@
include "inc/cmdsys.plh"
include "inc/fileio.plh"
const AUXADDR = $E000 // Location of SANE on 128K //e or //c
struc t_diskinfo
word codelen
word codeaddr
@ -20,13 +20,16 @@ export word[7] sane = @fpInit, @uninit1, @uninit2, @uninit1, @uninit2, @uninit0,
//
// Pointer to FP6502 entry
//
word fp6502, fpzpsave
word fp6502
//
// PLASMA <-> SANE interface routines
//
asm equates
!SOURCE "vmsrc/plvmzp.inc"
end
//
// Main memory FP6502 API
//
asm fpOp1(op, dst)#1
LDA ESTKH,X
PHA
@ -72,6 +75,81 @@ asm fixupFP2
STY ESTKH,X
RTS
end
//
// AUX memory FP6502 API
//
asm xfpOp1(op, dst)#1
LDA ESTKL+1,X
STA $02FE
LDA ESTKH+1,X
STA $02FF
LDY ESTKL,X
LDA ESTKH,X
INX
STX ESP
PHP
SEI
STA $C009 ; SELECT ALTZP
BIT $C083 ; R/W LC BANK2
BIT $C083
PHA
TYA
PHA
LDA $02FF
PHA
LDA $02FE
PHA
JSR $E000
STA $C008 ; BACK TO MAINZP
PLP
TXA
LDX ESP
STA ESTKL,X
STY ESTKH,X
RTS
end
asm xfpOp2(op, dst, src)#1
LDA ESTKL+2,X
STA $02FC
LDA ESTKH+2,X
STA $02FD
LDA ESTKL+1,X
STA $02FE
LDA ESTKH+1,X
STA $02FF
LDY ESTKL,X
LDA ESTKH,X
INX
INX
STX ESP
PHP
SEI
STA $C009 ; SELECT ALTZP
BIT $C083 ; R/W LC BANK2
BIT $C083
PHA
TYA
PHA
LDA $02FF
PHA
LDA $02FE
PHA
LDA $02FD
PHA
LDA $02FC
PHA
JSR $E000
STA $C008 ; BACK TO MAINZP
PLP
TXA
LDX ESP
STA ESTKL,X
STY ESTKH,X
RTS
end
//
// Main memory ELEMS6502 API
//
asm elemsOp1(op, dst)#1
LDA ESTKH,X
PHA
@ -117,6 +195,82 @@ asm fixupEL2
STY ESTKH,X
RTS
end
//
// AUX memory ELEMS6502 API
//
asm xelemsOp1(op, dst)#1
LDA ESTKL+1,X
STA $02FE
LDA ESTKH+1,X
STA $02FF
LDY ESTKL,X
LDA ESTKH,X
INX
STX ESP
PHP
SEI
STA $C009 ; SELECT ALTZP
BIT $C083 ; R/W LC BANK2
BIT $C083
PHA
TYA
PHA
LDA $02FF
PHA
LDA $02FE
PHA
end
asm fixupXEL1
JSR $FFFF
STA $C008 ; BACK TO MAINZP
PLP
TXA
LDX ESP
STA ESTKL,X
STY ESTKH,X
RTS
end
asm xelemsOp2(op, dst)#1
LDA ESTKL+2,X
STA $02FC
LDA ESTKH+2,X
STA $02FD
LDA ESTKL+1,X
STA $02FE
LDA ESTKH+1,X
STA $02FF
LDY ESTKL,X
LDA ESTKH,X
INX
INX
STX ESP
PHP
SEI
STA $C009 ; SELECT ALTZP
BIT $C083 ; R/W LC BANK2
BIT $C083
PHA
TYA
PHA
LDA $02FF
PHA
LDA $02FE
PHA
LDA $02FD
PHA
LDA $02FC
PHA
end
asm fixupXEL2
JSR $FFFF
STA $C008 ; BACK TO MAINZP
PLP
TXA
LDX ESP
STA ESTKL,X
STY ESTKH,X
RTS
end
asm zpSave#1
LDY #$33
- LDA $00,Y
@ -137,10 +291,60 @@ asm fixupZPR
DEY
BPL -
end
asm nopZP#1
asm zpNop#1
DEX
RTS
end
asm auxmove(dst, src, len)#0
LDA ESTKL+2,X
STA $02FA
LDA ESTKH+2,X
STA $02FB
LDA ESTKL+1,X
STA $02FC
LDA ESTKH+1,X
STA $02FD
LDA ESTKL,X
STA $02FE
CLC
BEQ +
SEC
+ LDA ESTKH,X
ADC #$00
STA $02FF
INX
INX
INX
STX ESP
PHP
SEI
STA $C009 ; SELECT ALTZP
BIT $C083 ; R/W LC BANK2
BIT $C083
LDA $02FA ; DST ADDRESS
STA $42
LDA $02FB
STA $43
LDA $02FC ; SRC ADDRESS
STA $3C
LDA $02FD
STA $3D
LDY #$00
- LDA ($3C),Y
STA ($42),Y
INY
BNE +
INC $3D
INC $43
+ DEC $02FE
BNE -
DEC $02FF
BNE -
STA $C008 ; SELECT MAINZP
PLP
LDX ESP
RTS
end
//
// Utility test routines
//
@ -267,7 +471,13 @@ def loadcode(codefile)
//putname(pcode + segname + 8); putc('='); prword(pcode); putln
seglen = read(ref, pcode, (pcode + t_diskinfo)=>codeaddr)
close(ref)
heaprelease(fixup(pcode, pcode + seglen - 2)) // Set heap to beginning of relocation list
if !fp6502 and ^MACHID & $30 == $30
seglen = fixup(AUXADDR, pcode + seglen - 2) - pcode
auxmove(AUXADDR, pcode, seglen)
pcode = AUXADDR
else
heaprelease(fixup(pcode, pcode + seglen - 2)) // Set heap to beginning of relocation list
fin
fin
return pcode
end
@ -282,10 +492,17 @@ def loadElems
puts("ELEMS library not found.\n")
return 0
fin
(@fixupEL1)=>1 = elems
(@fixupEL2)=>1 = elems
sane[3] = @elemsOp1
sane[4] = @elemsOp2
if fp6502 == AUXADDR
(@fixupXEL1)=>1 = elems
(@fixupXEL2)=>1 = elems
sane[3] = @xelemsOp1
sane[4] = @xelemsOp2
else
(@fixupEL1)=>1 = elems
(@fixupEL2)=>1 = elems
sane[3] = @elemsOp1
sane[4] = @elemsOp2
fin
return 1
end
//
@ -293,13 +510,13 @@ end
//
def elemsLoad1(op, dst)#1
if loadElems
return elemsOp1(op, dst)
return sane[3](op, dst)
fin
return -1
end
def elemsLoad2(op, src, dst)#1
if loadElems
return elemsOp2(op, src, dst)
return sane[4](op, src, dst)
fin
return -1
end
@ -307,25 +524,37 @@ end
// Load SANE library and fixup function pointers
//
def fpInit()
word fpzpsave
fp6502 = loadcode("FP6502.CODE")
if !fp6502
puts("SANE library not found.\n")
return -1
fin
fpzpsave = heapalloc($0033)
//
// Fixup calls in interface routines
//
(@fixupFP1)=>1 = fp6502
(@fixupFP2)=>1 = fp6502
(@fixupZPS)=>1 = fpzpsave
(@fixupZPR)=>1 = fpzpsave
sane[1] = @fpOp1
sane[2] = @fpOp2
if fp6502 == AUXADDR
//
// Fixup AUX calls in interface routines
//
sane[1] = @xfpOp1
sane[2] = @xfpOp2
sane[5] = @zpNop
sane[6] = @zpNop
else
//
// Fixup MAIN calls in interface routines
//
fpzpsave = heapalloc($0033)
(@fixupZPS)=>1 = fpzpsave
(@fixupZPR)=>1 = fpzpsave
(@fixupFP1)=>1 = fp6502
(@fixupFP2)=>1 = fp6502
sane[1] = @fpOp1
sane[2] = @fpOp2
sane[5] = @zpSave
sane[6] = @zpRestore
fin
sane[3] = @elemsLoad1
sane[4] = @elemsLoad2
sane[5] = @zpSave
sane[6] = @zpRestore
end
//
// Uninitialized placeholders of API

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