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pcat: properly handle IMMED flag in _find
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parent
1b5333d0b4
commit
c2c32bbed8
16
blk/758
16
blk/758
@ -1,10 +1,6 @@
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: MOVri, SWAP 0xb0 OR A, A, ;
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: MOVxI, SWAP 0xb8 OR A, A,, ;
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: MOVsx, 0x8e A, SWAP 3 LSHIFT OR 0xc0 OR A, ;
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: MOVxm, 0x8b A, SWAP 3 LSHIFT 0x6 OR A, A,, ;
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: INT, 0xcd A, A, ;
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: ADDAXI, 0x05 A, A,, ; : ADDALi, 0x04 A, A, ;
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: SUBxi, 0x83 A, SWAP 0xe8 OR A, A, ;
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: ADDxi, 0x83 A, SWAP 0xc0 OR A, A, ;
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: JMPr, 0xff A, 7 AND 0xe0 OR A, ;
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: JMPf, ( seg off ) 0xea A, SPLITB A, A, A,, ;
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: OPi CREATE C, DOES> C@ A, A, ;
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0x04 OPi ADDALi, 0x24 OPi ANDALi,
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0xcd OPi INT,
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: OPI CREATE C, DOES> C@ A, A,, ;
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0x05 OPI ADDAXI, 0x25 OPI ANDAXI,
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16
blk/759
16
blk/759
@ -1,16 +0,0 @@
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( Place BEGIN, where you want to jump back and AGAIN after
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a relative jump operator. Just like BSET and BWR. )
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: BEGIN, PC ;
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: BSET PC SWAP ! ;
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( same as BSET, but we need to write a placeholder )
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: FJR, PC 0 A, ;
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: IFZ, JNZ, FJR, ;
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: IFNZ, JZ, FJR, ;
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: IFC, JNC, FJR, ;
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: IFNC, JC, FJR, ;
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: THEN,
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DUP PC ( l l pc )
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-^ 1- ( l off )
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( warning: l is a PC offset, not a mem addr! )
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SWAP ORG @ + BIN( @ - ( off addr )
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C! ;
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19
blk/760
19
blk/760
@ -1,11 +1,8 @@
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: FWRs BSET 0 A, ;
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: FSET @ THEN, ;
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( : BREAK, FJR, 0x8000 OR ;
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: BREAK?, DUP 0x8000 AND IF
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0x7fff AND 1 ALLOT THEN, -1 ALLOT
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THEN ; )
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: RPCs, PC - 1- DUP 128 + 0xff > IF ABORT" PC ovfl" THEN A, ;
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: RPCn, PC - 2- A,, ;
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: AGAIN, ( BREAK?, ) RPCs, ;
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( Use RPCx with appropriate JMP/CALL op. Example:
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JMPs, 0x42 RPCs, or CALLn, 0x1234 RPCn, )
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: MOVri, SWAP 0xb0 OR A, A, ;
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: MOVxI, SWAP 0xb8 OR A, A,, ;
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: MOVsx, 0x8e A, SWAP 3 LSHIFT OR 0xc0 OR A, ;
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: MOVxm, 0x8b A, SWAP 3 LSHIFT 0x6 OR A, A,, ;
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: SUBxi, 0x83 A, SWAP 0xe8 OR A, A, ;
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: ADDxi, 0x83 A, SWAP 0xc0 OR A, A, ;
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: JMPr, 0xff A, 7 AND 0xe0 OR A, ;
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: JMPf, ( seg off ) 0xea A, SPLITB A, A, A,, ;
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blk/761
20
blk/761
@ -1,4 +1,16 @@
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: PUSHZ, CX 0 MOVxI, IFZ, CX INCx, THEN, CX PUSHx, ;
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: CODE ( same as CREATE, but with native word )
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(entry) 0 ( native ) C, ;
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: ;CODE JMPn, 0x1a ( next ) RPCn, ;
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( Place BEGIN, where you want to jump back and AGAIN after
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a relative jump operator. Just like BSET and BWR. )
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: BEGIN, PC ;
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: BSET PC SWAP ! ;
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( same as BSET, but we need to write a placeholder )
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: FJR, PC 0 A, ;
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: IFZ, JNZ, FJR, ;
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: IFNZ, JZ, FJR, ;
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: IFC, JNC, FJR, ;
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: IFNC, JC, FJR, ;
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: THEN,
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DUP PC ( l l pc )
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-^ 1- ( l off )
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( warning: l is a PC offset, not a mem addr! )
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SWAP ORG @ + BIN( @ - ( off addr )
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C! ;
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11
blk/762
Normal file
11
blk/762
Normal file
@ -0,0 +1,11 @@
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: FWRs BSET 0 A, ;
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: FSET @ THEN, ;
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( : BREAK, FJR, 0x8000 OR ;
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: BREAK?, DUP 0x8000 AND IF
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0x7fff AND 1 ALLOT THEN, -1 ALLOT
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THEN ; )
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: RPCs, PC - 1- DUP 128 + 0xff > IF ABORT" PC ovfl" THEN A, ;
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: RPCn, PC - 2- A,, ;
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: AGAIN, ( BREAK?, ) RPCs, ;
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( Use RPCx with appropriate JMP/CALL op. Example:
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JMPs, 0x42 RPCs, or CALLn, 0x1234 RPCn, )
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4
blk/763
Normal file
4
blk/763
Normal file
@ -0,0 +1,4 @@
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: PUSHZ, CX 0 MOVxI, IFZ, CX INCx, THEN, CX PUSHx, ;
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: CODE ( same as CREATE, but with native word )
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(entry) 0 ( native ) C, ;
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: ;CODE JMPn, 0x1a ( next ) RPCn, ;
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2
blk/828
2
blk/828
@ -4,7 +4,7 @@ CODE _find ( cur w -- a f )
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SI INCx, ( first char ) AX AX XORxx, ( initial prev )
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BEGIN, ( loop )
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DI AX SUBxx, ( jump to prev wordref )
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AL [DI] -1 MOVr[]+, ( strlen )
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AL [DI] -1 MOVr[]+, 0x7f ANDALi, ( strlen )
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CL AL CMPrr, IFZ, ( same len )
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SI PUSHx, DI PUSHx, CX PUSHx, ( --> lvl 3 )
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3 ADDALi, ( header ) AH AH XORrr, DI AX SUBxx,
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