--- gforth/float.fs 1995/10/07 17:38:12 1.16 +++ gforth/float.fs 1995/10/16 18:33:08 1.17 @@ -1,28 +1,39 @@ \ High level floating point 14jan94py -1 cells 4 = [IF] -' cells Alias sfloats -' cell+ Alias sfloat+ -' align Alias sfalign -' aligned Alias sfaligned -[ELSE] -: sfloats 2* 2* ; -: sfloat+ 4 + ; -: sfaligned ( addr -- addr' ) 3 + -4 and ; -: sfalign ( -- ) here dup sfaligned swap ?DO bl c, LOOP ; -[THEN] - -1 floats 8 = [IF] -' floats Alias dfloats -' float+ Alias dfloat+ -' falign Alias dfalign -' faligned Alias dfaligned -[ELSE] -: dfloats 2* 2* 2* ; -: dfloat+ 8 + ; -: dfaligned ( addr -- addr' ) 7 + -8 and ; -: dfalign ( -- ) here dup dfaligned swap ?DO bl c, LOOP ; -[THEN] +\ 1 cells 4 = [IF] +\ ' cells Alias sfloats +\ ' cell+ Alias sfloat+ +\ ' align Alias sfalign +\ ' aligned Alias sfaligned +\ [ELSE] +\ : sfloats 2* 2* ; +\ : sfloat+ 4 + ; +\ : sfaligned ( addr -- addr' ) 3 + -4 and ; +\ : sfalign ( -- ) here dup sfaligned swap ?DO bl c, LOOP ; +\ [THEN] + +\ 1 floats 8 = [IF] +\ ' floats Alias dfloats +\ ' float+ Alias dfloat+ +\ ' falign Alias dfalign +\ ' faligned Alias dfaligned +\ [ELSE] +\ : dfloats 2* 2* 2* ; +\ : dfloat+ 8 + ; +\ : dfaligned ( addr -- addr' ) 7 + -8 and ; +\ : dfalign ( -- ) here dup dfaligned swap ?DO bl c, LOOP ; +\ [THEN] + +: sfalign ( -- ) \ float-ext s-f-align + here dup sfaligned swap ?DO bl c, LOOP ; +: dfalign ( -- ) \ float-ext d-f-align + here dup dfaligned swap ?DO bl c, LOOP ; + +1 sfloats constant sfloat+ ( sf-addr1 -- sf-addr2 ) \ float-ext s-float-plus +dofield: lastxt code-address! \ change the constant into a field + +1 dfloats constant dfloat+ ( df-addr1 -- df-addr2 ) \ float-ext d-float-plus +dofield: lastxt code-address! \ change the constant into a field : f, ( f -- ) here 1 floats allot f! ;