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[/] [potato/] [trunk/] [benchmarks/] [start.S] - Diff between revs 20 and 58

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Rev 20	Rev 58
Line 8...	Line 8...
`#include "platform.h"`	`#include "platform.h"`
`#include "potato.h"`	`#include "potato.h"`

`.section .init`	`.section .init`

	`.align 6`
	`tvec_user: // User mode is not supported by Potato`
	`j tvec_machine`
	`.align 6`
	`tvec_supervisor: // Supervisor mode is not supported by Potato`
	`j tvec_machine`
	`.align 6`
	`tvec_hypervisor: // Hypervisor mode is not supported by Potato`
	`j tvec_machine`
	`.align 6`
	`tvec_machine:`
	`j exception_handler_wrapper`

	`.align 6`
`.global _start`	`.global _start`
`_start:`	`_start:`

`// Copies the .data section into the data memory section:`	`// Copies the .data section into the data memory section:`
`.hidden copy_data`	`.hidden copy_data`
Line 42...	Line 56...
`addi x1, x1, 4`	`addi x1, x1, 4`
`bne x1, x2, 1b`	`bne x1, x2, 1b`

`2:`	`2:`

`.hidden set_evec`
`set_evec:`
`// Set up an exception handler:`
`la x1, exception_handler_wrapper`
`csrw evec, x1`

`.hidden call_main`	`.hidden call_main`
`call_main:`	`call_main:`
`la sp, __stack_top`	`la sp, __stack_top`
`jal main`	`jal main`
`csrw tohost, a0`	`csrw mtohost, a0`
`1:`	`1:`
`j 1b`	`j 1b`

`.section .text`	`.section .text`

Line 95...	Line 103...
`sw x28, 108(sp)`	`sw x28, 108(sp)`
`sw x29, 112(sp)`	`sw x29, 112(sp)`
`sw x30, 116(sp)`	`sw x30, 116(sp)`
`sw x31, 120(sp)`	`sw x31, 120(sp)`

`csrr a0, cause`	`csrr a0, mcause`
`csrr a1, epc`	`csrr a1, mepc`
`mv a2, sp`	`mv a2, sp`
`jal exception_handler`	`jal exception_handler`

`.hidden exception_return`	`.hidden exception_return`
`exception_return:`	`exception_return:`
Line 136...	Line 144...
`lw x29, 112(sp)`	`lw x29, 112(sp)`
`lw x30, 116(sp)`	`lw x30, 116(sp)`
`lw x31, 120(sp)`	`lw x31, 120(sp)`
`addi sp, sp, 124`	`addi sp, sp, 124`

`sret`	`eret`

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[/] [potato/] [trunk/] [benchmarks/] [start.S] - Diff between revs 20 and 58