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[sw,rtl/cpu] added mcause trap id code for 'hardware reset': 0x80000000

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stnolting 2020-12-09 17:47:54 +01:00
parent 4b043d71f3
commit 5fae214e85
2 changed files with 3 additions and 1 deletions
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3
rtl/core/neorv32_package.vhd
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@ -58,7 +58,7 @@ package neorv32_package is
-- Architecture Constants -----------------------------------------------------------------
-- -------------------------------------------------------------------------------------------
constant data_width_c : natural := 32; -- data width - do not change!
constant hw_version_c : std_ulogic_vector(31 downto 0) := x"01040805"; -- no touchy!
constant hw_version_c : std_ulogic_vector(31 downto 0) := x"01040806"; -- no touchy!
constant pmp_max_r_c : natural := 8; -- max PMP regions - FIXED!
constant archid_c : natural := 19; -- official NEORV32 architecture ID - hands off!
constant rf_r0_is_reg_c : boolean := true; -- reg_file.r0 is a physical register that has to be initialized to zero by the HW
@ -440,6 +440,7 @@ package neorv32_package is
constant trap_mti_c : std_ulogic_vector(5 downto 0) := "1" & "00111"; -- 1.7: machine timer interrupt
constant trap_mei_c : std_ulogic_vector(5 downto 0) := "1" & "01011"; -- 1.11: machine external interrupt
-- NEORV32-specific (custom) interrupts --
constant trap_reset_c : std_ulogic_vector(5 downto 0) := "1" & "10000"; -- 1.0: system reset
constant trap_firq0_c : std_ulogic_vector(5 downto 0) := "1" & "10000"; -- 1.16: fast interrupt 0
constant trap_firq1_c : std_ulogic_vector(5 downto 0) := "1" & "10001"; -- 1.17: fast interrupt 1
constant trap_firq2_c : std_ulogic_vector(5 downto 0) := "1" & "10010"; -- 1.18: fast interrupt 2

1
sw/lib/include/neorv32.h
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@ -180,6 +180,7 @@ enum NEORV32_EXCEPTION_CODES_enum {
TRAP_CODE_S_MISALIGNED = 0x00000006, /**< 0.6: Store address misaligned */
TRAP_CODE_S_ACCESS = 0x00000007, /**< 0.7: Store (bus) access fault */
TRAP_CODE_MENV_CALL = 0x0000000b, /**< 0.11: Environment call from machine mode (ECALL instruction) */
TRAP_CODE_RESET = 0x80000000, /**< 1.0: Hardware reset */
TRAP_CODE_MSI = 0x80000003, /**< 1.3: Machine software interrupt */
TRAP_CODE_MTI = 0x80000007, /**< 1.7: Machine timer interrupt */
TRAP_CODE_MEI = 0x8000000b, /**< 1.11: Machine external interrupt */