will this work in git

This commit is contained in:
slmnemo 2022-06-27 18:59:44 -07:00
parent 283647cf5e
commit ee8349e832

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@ -857,6 +857,27 @@ trap_handler_end_\MODE\(): // place to jump to so we can skip the trap handler a
addi a6, a6, 8
.endm
.macro SETUP_PLIC
# Setup PLIC with a series of register writes
.equ PLIC_INTPRI_GPIO, 0x0C00000C # GPIO is interrupt 3
.equ PLIC_INTPRI_UART, 0x0C000028 # UART is interrupt 10
.equ PLIC_INTPENDING0, 0x0C001000 # intPending0 register
.equ PLIC_INTEN00, 0x0C002000 # interrupt enables for context 0 (machine mode) sources 31:1
.equ PLIC_INTEN10, 0x0C002080 # interrupt enables for context 1 (supervisor mode) sources 31:1
.equ PLIC_THRESH0, 0x0C200000 # Priority threshold for context 0 (machine mode)
.equ PLIC_CLAIM0, 0x0C200004 # Claim/Complete register for context 0
.equ PLIC_THRESH1, 0x0C201000 # Priority threshold for context 1 (supervisor mode)
.equ PLIC_CLAIM1, 0x0C201004 # Claim/Complete register for context 1
.4byte PLIC_THRESH0, 0, write32_test # Set PLIC machine mode interrupt threshold to 0 to accept all interrupts
.4byte PLIC_THRESH1, 7, write32_test # Set PLIC supervisor mode interrupt threshold to 7 to accept no interrupts
.4byte PLIC_INTPRI_GPIO, 7, write32_test # Set GPIO to high priority
.4byte PLIC_INTPRI_UART, 7, write32_test # Set UART to high priority
.4byte PLIC_INTEN00, 0xFFFFFFFF, write32_test # Enable all interrupt sources for machine mode
.4byte PLIC_INTEN10, 0x00000000, write32_test # Disable all interrupt sources for supervisor mode
.endm
.macro END_TESTS
// invokes one final ecall to return to machine mode then terminates this program, so the output is
// 0x8: termination called from U mode
@ -984,6 +1005,20 @@ read08_test:
addi a6, a6, 8
j test_loop // go to next test case
readmip_test: // read the MIP into the signature
csrr t2, mip
sw t2, 0(t1)
addi t1, t1, 4
addi a6, a6, 4
j test_loop // go to next test case
readsip_test: // read the MIP into the signature
csrr t2, sip
sw t2, 0(t1)
addi t1, t1, 4
addi a6, a6, 4
j test_loop // go to next test case
goto_s_mode:
// return to address in t3,
li a0, 3 // Trap handler behavior (go to supervisor mode)