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https://github.com/UzixLS/zx-sizif-xxs.git
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74 lines
1.4 KiB
NASM
74 lines
1.4 KiB
NASM
DEVICE ZXSPECTRUM48
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OPT --syntax=F
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DEFINE TEST_BUILD
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org #4000
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;INCBIN "EXOLON.SCR",0
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org #7070
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int_handler:
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ei
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reti
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org #7E00
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; INT IM2 vector table
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.257 db #70 ; by Z80 user manual int vector is I * 256 + (D & 0xFE)
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; but by other references and by T80/A-Z80 implementation int vector is I * 256 + D
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; so we just play safe and use symmetric int handler address and vector table with one extra byte
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org #8000
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app_begin:
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di
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call save_screen
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ld hl, menudefault
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ld (var_menumain), hl
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call menu_init
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ld a, #7e ; set our interrupt table address (#7Fxx)
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ld i, a ; ...
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im 2
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ei
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.loop:
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halt
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call input_process
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call menu_process
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ld a, #01
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out #fe, a
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ld a, (var_exit_flag)
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or a
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jr z, .loop
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save_variables:
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ret
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save_screen:
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ld bc, 6912
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ld de, var_save_screen
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ld hl, #4000
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ldir
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ret
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restore_screen:
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ld bc, 6912
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ld de, #4000
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ld hl, var_save_screen
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ldir
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ret
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includes:
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include config.asm
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include draw.asm
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include input.asm
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include pause.asm
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include menu.asm
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include menu_structure.asm
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include font.asm
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include strings.asm
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variables:
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include variables.asm
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DISPLAY "Application size: ",/D,$-app_begin
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CSPECTMAP "main_test.map"
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SAVESNA "main_test.sna",app_begin
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SAVEBIN "main_test.bin",#8000,#4000
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