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Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
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5ef3a1d371
@ -143,7 +143,10 @@ module csr #(parameter
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logic VectoredM;
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logic [`XLEN-1:0] TVecPlusCauseM;
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assign VectoredM = InterruptM & (TVecM[1:0] == 2'b01);
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// *** Would like you use concat version, but breaks uart test wally64priv when
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// mtvec is aligned to 64 bytes.
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assign TVecPlusCauseM = TVecAlignedM + {{(`XLEN-2-`LOG_XLEN){1'b0}}, CauseM, 2'b00};
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//assign TVecPlusCauseM = {TVecAlignedM[`XLEN-1:6], CauseM[3:0], 2'b00};
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mux2 #(`XLEN) trapvecmux(TVecAlignedM, TVecPlusCauseM, VectoredM, TrapVectorM);
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end else
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assign TrapVectorM = TVecAlignedM;
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@ -299,6 +299,7 @@ end_trap_triggers:
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// --------------------------------------------------------------------------------------------
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//.align 6
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.align 2
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trap_handler_\MODE\():
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j trap_unvectored_\MODE\() // for the unvectored implimentation: jump past this table of addresses into the actual handler
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@ -306,16 +307,16 @@ trap_handler_\MODE\():
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// otherwise, a vectored interrupt handler should jump to trap_handler_\MODE\() + 4 * Interrupt cause code
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// No matter the value of VECTORED, exceptions (not interrupts) are handled in an unvecotred way
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j s_soft_vector_\MODE\() // 1: instruction access fault // the zero spot is taken up by the instruction to skip this table.
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j segfault_\MODE\() // 2: reserved
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j m_soft_vector_\MODE\() // 3: breakpoint
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j segfault_\MODE\() // 4: reserved
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j s_time_vector_\MODE\() // 5: load access fault
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j segfault_\MODE\() // 6: reserved
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j m_time_vector_\MODE\() // 7: store access fault
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j segfault_\MODE\() // 8: reserved
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j s_ext_vector_\MODE\() // 9: ecall from S-mode
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j segfault_\MODE\() // 10: reserved
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j m_ext_vector_\MODE\() // 11: ecall from M-mode
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j segfault_\MODE\()
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j m_soft_vector_\MODE\()
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j segfault_\MODE\()
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j s_time_vector_\MODE\()
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j segfault_\MODE\()
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j m_time_vector_\MODE\()
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j segfault_\MODE\()
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j s_ext_vector_\MODE\()
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j segfault_\MODE\()
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j m_ext_vector_\MODE\()
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// 12 through >=16 are reserved or designated for platform use
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trap_unvectored_\MODE\():
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@ -293,23 +293,24 @@ end_trap_triggers:
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//
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// --------------------------------------------------------------------------------------------
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//.align 6
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.align 3
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trap_handler_\MODE\():
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j trap_unvectored_\MODE\() // for the unvectored implimentation: jump past this table of addresses into the actual handler
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// *** ASSUMES that a cause value of 0 for an interrupt is unimplemented
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// otherwise, a vectored interrupt handler should jump to trap_handler_\MODE\() + 4 * Interrupt cause code
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// No matter the value of VECTORED, exceptions (not interrupts) are handled in an unvecotred way
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j s_soft_vector_\MODE\() // 1: instruction access fault // the zero spot is taken up by the instruction to skip this table.
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j segfault_\MODE\() // 2: reserved
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j m_soft_vector_\MODE\() // 3: breakpoint
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j segfault_\MODE\() // 4: reserved
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j s_time_vector_\MODE\() // 5: load access fault
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j segfault_\MODE\() // 6: reserved
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j m_time_vector_\MODE\() // 7: store access fault
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j segfault_\MODE\() // 8: reserved
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j s_ext_vector_\MODE\() // 9: ecall from S-mode
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j segfault_\MODE\() // 10: reserved
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j m_ext_vector_\MODE\() // 11: ecall from M-mode
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j s_soft_vector_\MODE\()
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j segfault_\MODE\()
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j m_soft_vector_\MODE\()
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j segfault_\MODE\()
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j s_time_vector_\MODE\()
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j segfault_\MODE\()
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j m_time_vector_\MODE\()
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j segfault_\MODE\()
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j s_ext_vector_\MODE\()
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j segfault_\MODE\()
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j m_ext_vector_\MODE\()
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// 12 through >=16 are reserved or designated for platform use
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trap_unvectored_\MODE\():
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