是堆栈和变量啊，宇宙飞船看看C28的CMD文件，是如何安排PAG0和PAG1的！
是什么段？MI就用了做堆栈了！
MEMORY
{
PAGE 0 :
/* For this example, L0 is split between PAGE 0 and PAGE 1 */
/* BEGIN is used for the "boot to SARAM" bootloader mode */
BEGIN : origin = 0x000000, length = 0x000002
RAMM0 : origin = 0x000002, length = 0x0003FE
PRAML0 : origin = 0x008000, length = 0x000800
RESET : origin = 0x3FFFC0, length = 0x000002
BOOTROM : origin = 0x3FF000, length = 0x000FC0
PAGE 1 :
/* For this example, L0 is split between PAGE 0 and PAGE 1 */
BOOT_RSVD : origin = 0x000400, length = 0x000080 /* Part of M1, BOOT rom will use this for stack */
RAMM1 : origin = 0x000480, length = 0x000380 /* on-chip RAM block M1 */
DRAML0 : origin = 0x008800, length = 0x000800
}
SECTIONS
{
/* Setup for "boot to SARAM" mode:
The codestart section (found in DSP28_CodeStartBranch.asm)
re-directs execution to the start of user code. */
codestart : > BEGIN, PAGE = 0
ramfuncs : > RAMM0 PAGE = 0
.text : > PRAML0, PAGE = 0
.cinit : > RAMM0, PAGE = 0
.pinit : > RAMM0, PAGE = 0
.switch : > RAMM0, PAGE = 0
.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */
.stack : > RAMM1, PAGE = 1
.ebss : > DRAML0, PAGE = 1
.econst : > DRAML0, PAGE = 1
.esysmem : > RAMM1, PAGE = 1
IQmath : > PRAML0, PAGE = 0
IQmathTables : > BOOTROM, type = NOLOAD, PAGE = 0
}
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