arch.inc

ucos 在arca方舟芯片（mips）上的移植。

#============================================================================
# arch.inc
# context layout for Arca. defined some useful MACROs
#
# Distributor: ARCA Technology Corp.
#      Author: Seeger Chin
#        Date: 2002.12.26
#---------------------------------------------------------

	# switch context frame definition

	# exception, debug, and interrupt frame operation
	.macro	hal_exception_save_all
	addi	r1, r1, -(34*4)
	sd32	r0,  [r1, 4*0]
	sd32	r1,  [r1, 4*1]
	sd32	r2,  [r1, 4*2]
	sd32	r3,  [r1, 4*3]
	sd32	r4,  [r1, 4*4]
	sd32	r5,  [r1, 4*5]
	sd32	r6,  [r1, 4*6]
	sd32	r7,  [r1, 4*7]
	sd32	r8,  [r1, 4*8]
	sd32	r9,  [r1, 4*9]
	sd32	r10, [r1, 4*10]
	sd32	r11, [r1, 4*11]
	sd32	r12, [r1, 4*12]
	sd32	r13, [r1, 4*13]
	sd32	r14, [r1, 4*14]
	sd32	r15, [r1, 4*15]
	sd32	r16, [r1, 4*16]
	sd32	r17, [r1, 4*17]
	sd32	r18, [r1, 4*18]
	sd32	r19, [r1, 4*19]
	sd32	r20, [r1, 4*20]
	sd32	r21, [r1, 4*21]
	sd32	r22, [r1, 4*22]
	sd32	r23, [r1, 4*23]
	sd32	r24, [r1, 4*24]
	sd32	r25, [r1, 4*25]
	sd32	r26, [r1, 4*26]
	sd32	r27, [r1, 4*27]
	sd32	r28, [r1, 4*28]
	sd32	r29, [r1, 4*29]
	rcr	r8,  1		# ESR
	sd32	r8, [r1, 4*30]
	rcr	r8,  2		# EPC
	sd32	r8, [r1, 4*31]
	rcr	r8,  5		# DSR
	sd32	r8, [r1, 4*32]
	rcr	r8,  6		# DPC
	sd32	r8, [r1, 4*33]
	.endm

	.macro	hal_exception_restore_all

	ld32	r0,  [r1, 4*0]
	ld32	r1,  [r1, 4*1]
	ld32	r2,  [r1, 4*2]
	ld32	r3,  [r1, 4*3]
	ld32	r4,  [r1, 4*4]
	ld32	r5,  [r1, 4*5]
	ld32	r6,  [r1, 4*6]
	ld32	r7,  [r1, 4*7]
	ld32	r9,  [r1, 4*9]
	ld32	r10, [r1, 4*10]
	ld32	r11, [r1, 4*11]
	ld32	r12, [r1, 4*12]
	ld32	r13, [r1, 4*13]
	ld32	r14, [r1, 4*14]
	ld32	r15, [r1, 4*15]
	ld32	r16, [r1, 4*16]
	ld32	r17, [r1, 4*17]
	ld32	r18, [r1, 4*18]
	ld32	r19, [r1, 4*19]
	ld32	r20, [r1, 4*20]
	ld32	r21, [r1, 4*21]
	ld32	r22, [r1, 4*22]
	ld32	r23, [r1, 4*23]
	ld32	r24, [r1, 4*24]
	ld32	r25, [r1, 4*25]
	ld32	r26, [r1, 4*26]
	ld32	r27, [r1, 4*27]
	ld32	r28, [r1, 4*28]
	ld32	r29, [r1, 4*29]
	ld32	r30, [r1, 4*30]
	ld32	r31, [r1, 4*31]
	wcr	r30,  1		# ESR
	wcr	r31,  2		# EPC
	ld32	r8,  [r1, 4*32]
	wcr	r8,  5		# DSR
	ld32	r8,  [r1, 4*33]
	wcr	r8,  6		# DPC
	ld32	r8,  [r1, 4*8]
	addi	r1,  r1, 34*4
	rte
	.endm

	.macro hal_dbg_save_all
	addi	r1, r1, -(4*34)
	sd32	r0,  [r1, 4*0]
	sd32	r1,  [r1, 4*1]
	sd32	r2,  [r1, 4*2]
	sd32	r3,  [r1, 4*3]
	sd32	r4,  [r1, 4*4]
	sd32	r5,  [r1, 4*5]
	sd32	r6,  [r1, 4*6]
	sd32	r7,  [r1, 4*7]
	sd32	r8,  [r1, 4*8]
	sd32	r9,  [r1, 4*9]
	sd32	r10, [r1, 4*10]
	sd32	r11, [r1, 4*11]
	sd32	r12, [r1, 4*12]
	sd32	r13, [r1, 4*13]
	sd32	r14, [r1, 4*14]
	sd32	r15, [r1, 4*15]
	sd32	r16, [r1, 4*16]
	sd32	r17, [r1, 4*17]
	sd32	r18, [r1, 4*18]
	sd32	r19, [r1, 4*19]
	sd32	r20, [r1, 4*20]
	sd32	r21, [r1, 4*21]
	sd32	r22, [r1, 4*22]
	sd32	r23, [r1, 4*23]
	sd32	r24, [r1, 4*24]
	sd32	r25, [r1, 4*25]
	sd32	r26, [r1, 4*26]
	sd32	r27, [r1, 4*27]
	sd32	r28, [r1, 4*28]
	sd32	r29, [r1, 4*29]
	sd32	r30, [r1, 4*30]
	sd32	r31, [r1, 4*31]
	rcr	r8,  5		# DSR
	sd32	r8, [r1, 4*32]
	rcr	r8,  6		# DPC
	sd32	r8, [r1, 4*33]
	.endm

	.macro hal_dbg_restore_all
	ld32	r0,  [r1, 4*0]
	ld32	r1,  [r1, 4*1]
	ld32	r2,  [r1, 4*2]
	ld32	r3,  [r1, 4*3]
	ld32	r4,  [r1, 4*4]
	ld32	r5,  [r1, 4*5]
	ld32	r6,  [r1, 4*6]
	ld32	r7,  [r1, 4*7]
	ld32	r9,  [r1, 4*9]
	ld32	r10, [r1, 4*10]
	ld32	r11, [r1, 4*11]
	ld32	r12, [r1, 4*12]
	ld32	r13, [r1, 4*13]
	ld32	r14, [r1, 4*14]
	ld32	r15, [r1, 4*15]
	ld32	r16, [r1, 4*16]
	ld32	r17, [r1, 4*17]
	ld32	r18, [r1, 4*18]
	ld32	r19, [r1, 4*19]
	ld32	r20, [r1, 4*20]
	ld32	r21, [r1, 4*21]
	ld32	r22, [r1, 4*22]
	ld32	r23, [r1, 4*23]
	ld32	r24, [r1, 4*24]
	ld32	r25, [r1, 4*25]
	ld32	r26, [r1, 4*26]
	ld32	r27, [r1, 4*27]
	ld32	r28, [r1, 4*28]
	ld32	r29, [r1, 4*29]
	ld32	r30, [r1, 4*30]
	ld32	r31, [r1, 4*31]
	ld32	r8,  [r1, 4*32]
	wcr	r8,  5		# DSR
	ld32	r8,  [r1, 4*33]
	wcr	r8,  6		# DPC
	ld32	r8,  [r1, 4*8]
	addi	r1, r1, 34*4
	rte
	.endm