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pcat: add RSP checks in next

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This commit is contained in:
Virgil Dupras 2020-06-21 15:14:38 -04:00
parent f9eb7c661b
commit 8d645405b3
3 changed files with 21 additions and 16 deletions
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16
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@ -1,13 +1,9 @@
lblnext BSET PC 0x1d - ORG @ 0x1b + ! ( next )
( RSP check )
AX RS_ADDR MOVxI, BP AX CMPxx,
IFC, ( BP < RS_ADDR )
DI 0x06 MOVxm, JMPs, L1 FWRs ( execute )
THEN,
DI DX MOVxx, ( <-- IP ) DX INCx, DX INCx,
DI [DI] MOVx[], ( wordref )
( continue to execute )
lblexec BSET PC 0x36 - ORG @ 0x34 + ! ( DI -> wordref )
AL [DI] MOVr[], DI INCx, ( PFA )
AL AL ORrr, IFZ, DI JMPr, THEN, ( native )
AL DECr, IFNZ, ( cell or does )
DI PUSHx, ( push PFA )
AL DECr, IFZ, ( cell ) JMPs, lblnext @ RPCs, THEN,
( does, see B302 )
DI INCx, DI INCx, DI [DI] MOVx[],
THEN, ( continue to compiled cont. )
( continue to execute ) L1 FSET

16
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@ -1,11 +1,15 @@
( compiled )
lblexec BSET PC 0x36 - ORG @ 0x34 + ! ( DI -> wordref )
AL [DI] MOVr[], DI INCx, ( PFA )
AL AL ORrr, IFZ, DI JMPr, THEN, ( native )
AL DECr, IFNZ, ( cell or does )
DI PUSHx, ( push PFA )
AL DECr, IFZ, ( cell ) JMPs, lblnext @ RPCs, THEN,
( does, see B302 )
DI INCx, DI INCx, DI [DI] MOVx[],
THEN, ( continue to compiled )
( compiled )
BP INCx, BP INCx, [BP] 0 DX MOV[]+x, ( pushRS )
DX DI MOVxx, DX INCx, DX INCx, ( --> IP )
DI [DI] MOVx[],
JMPs, lblexec @ RPCs,
lblchkPS BSET ( CX -> expected size )
AX PS_ADDR MOVxI, AX SP SUBxx, 2 SUBAXI, ( CALL adjust )
AX CX SUBxx,
IFNC, ( we're good ) RETn, THEN,
( underflow ) DI 0x06 MOVxm, JMPs, lblexec @ RPCs,

5
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@ -0,0 +1,5 @@
lblchkPS BSET ( CX -> expected size )
AX PS_ADDR MOVxI, AX SP SUBxx, 2 SUBAXI, ( CALL adjust )
AX CX CMPxx,
IFNC, ( we're good ) RETn, THEN,
( underflow ) DI 0x06 MOVxm, JMPs, lblexec @ RPCs,