location of heap management code...

location of heap management code... - Printable Version

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+---- Thread: location of heap management code... (/showthread.php?tid=2652)

location of heap management code... - sdo303 - 2026-02-24

I'd like to use strings and arrays in my paged code, but I seem to have reached a blockage whereby, even though my paged-code looks like:

Code:
#PRAGMA push(case_insensitive)

#PRAGMA case_insensitive = True

#define STANDALONE  ' remove ROM initialization and SysVars...

Asm

    org $6000

    di

End Asm

s_stage_init()

Asm

    ret

End Asm

#include "constants.bas"

#include "globals.bas"

#include "stage-include.bas"

Sub s_init_keyboard_table_ZX_keys()

    ' effect: populates the lookup table for the 40-key spectrum matrix

    ' row 0: port $FEFE

    gub_zxkeys(0)  = 0   ' caps shift

'...

    gub_zxkeys(55) = 127 ' delete (standard)

End Sub

Sub s_init_keyboard_table_ZX_symkeys()

    ' row 0: z, x, c, v

    gub_zxsymkeys(1)  = 58  ' :

'...

    gub_zxsymkeys(55) = 127 ' delete (standard)

End Sub

Sub s_init_title_screen()

    ' footer prompt

    s_print_string_at( 28, 21, "Press any key to begin..."  , UB_BRIGHT_YELLOW )

    ' wait for player input

    s_get_key()

    ' check if the one-hour timeout occurred

    If guw_key_code = 0 Then gub_core_end = true

End Sub

Sub s_stage_init()

    s_init_keyboard_table_ZX_keys()

    s_init_keyboard_table_ZX_symkeys()

    s_init_title_screen()

End Sub

and when I compile with :

Code:
python $Compiler "$($Name).bas" -f bin -o "$($Name).bin" --org 24576 -W150 --headerless --explicit --strict --zxnext -i --arch zxnext --opt-strategy size --heap-address 32000 --heap-size 767 -M "$($Name).map"

then I still seem to end up with some kind of header code that makes a call to $46A4...

Code:
>6001  CALL 46A4        PC  6001

 6004  NOP              SP  FFFA

 6005  NOP              AF  FFFF'3C40

 6006  NOP              SZ5H3PNC

 6007  NOP              HL  0001'3C44

 6008  NOP              DE  0000'FFFF

 6009  NOP              BC  0000'5393

 600A  LD BC, 6013      IX  FFF1

 600D  EX AF, AF'       IY  EFF3

 600E  LD B, A          IR  001B

 600F  NOP              IM1 IFF--

 6010  NOP              (HL) F3 00

 6011  NOP              (DE) 00 F3

                        (BC) 00 F3

(SP) 0C3C 010B 0000 F300 C300 0

which I think must be some kind of heap management setup...

...so please may I ask...

Is there a compiler switch or directive whereby I can get the heap management code tacked on just after my code ends, so that I can have private heap management per 8KB segment of paged code ?

Thank you.