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Vol. 3 9-35
PROCESSOR MANAGEMENT AND INITIALIZATION
TABLE
GDT (
LOCATION = GDT_EPROM
, ENTRY = (
10: PROTECTED_MODE_TASK
, startup.startup_code
, startup.startup_data
, main_module.data
, main_module.code
, main_module.stack
)
),
IDT (
LOCATION = IDT_EPROM
);
MEMORY
(
RESERVE = (0..3FFFH
-- Area for the GDT, IDT, TSS copied from ROM
, 60000H..0FFFEFFFFH)
, RANGE = (ROM_AREA = ROM (0FFFF0000H..0FFFFFFFFH))
-- Eprom size 64K
, RANGE = (RAM_AREA = RAM (4000H..05FFFFH))
);
END
Table 9-5 shows the relationship of each build item with an ASM source file.
Table 9-5. Relationship Between BLD Item and ASM Source File
Item ASM386 and
Startup.A58
BLD386 Controls
and BLD file
Effect
Bootstrap public startup
startup:
bootstrap
start(startup)
Near jump at 0FFFFFFF0H
to start.
GDT location public GDT_EPROM
GDT_EPROM TABLE_REG <>
TABLE
GDT(location = GDT_EPROM)
The location of the GDT
will be programmed into
the GDT_EPROM location.
IDT location public IDT_EPROM
IDT_EPROM TABLE_REG <>
TABLE
IDT(location = IDT_EPROM
The location of the IDT
will be programmed into
the IDT_EPROM location.