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comptime { | ||
asm( | ||
\\.global _intHandler | ||
\\.align 4 | ||
\\_intHandler: | ||
\\/////////// RETRIEVE STACK TYPE BEGIN /////////// | ||
\\ csrrw a2, sscratch, a2 | ||
\\ sd a0, 0(a2) // Save a0 & a1 to the hart info, this allows us to use this as general purpose registers | ||
\\ sd a1, 8(a2) | ||
\\ sd sp, 16(a2) | ||
\\ | ||
\\ csrr a0, scause | ||
\\ li a1, 8 | ||
\\ ld sp, 32(a2) | ||
\\ bne a0, a1, .after | ||
\\ ld sp, 24(a2) | ||
\\.after: | ||
\\ ld a0, 0(a2) | ||
\\ ld a1, 8(a2) | ||
\\ csrrw a2, sscratch, a2 | ||
\\/////////// RETRIEVE STACK TYPE END /////////// | ||
\\ addi sp, sp, -8 * 32 | ||
\\ sd ra, 8 * 0(sp) | ||
\\ sd gp, 8 * 1(sp) | ||
\\ sd tp, 8 * 2(sp) | ||
\\ sd t0, 8 * 3(sp) | ||
\\ sd t1, 8 * 4(sp) | ||
\\ sd t2, 8 * 5(sp) | ||
\\ sd t3, 8 * 6(sp) | ||
\\ sd t4, 8 * 7(sp) | ||
\\ sd t5, 8 * 8(sp) | ||
\\ sd t6, 8 * 9(sp) | ||
\\ sd a0, 8 * 10(sp) | ||
\\ sd a1, 8 * 11(sp) | ||
\\ sd a2, 8 * 12(sp) | ||
\\ sd a3, 8 * 13(sp) | ||
\\ sd a4, 8 * 14(sp) | ||
\\ sd a5, 8 * 15(sp) | ||
\\ sd a6, 8 * 16(sp) | ||
\\ sd a7, 8 * 17(sp) | ||
\\ sd s0, 8 * 18(sp) | ||
\\ sd s1, 8 * 19(sp) | ||
\\ sd s2, 8 * 20(sp) | ||
\\ sd s3, 8 * 21(sp) | ||
\\ sd s4, 8 * 22(sp) | ||
\\ sd s5, 8 * 23(sp) | ||
\\ sd s6, 8 * 24(sp) | ||
\\ sd s7, 8 * 25(sp) | ||
\\ sd s8, 8 * 26(sp) | ||
\\ sd s9, 8 * 27(sp) | ||
\\ sd s10, 8 * 28(sp) | ||
\\ sd s11, 8 * 29(sp) | ||
\\ | ||
\\ csrr a0, sepc | ||
\\ sd a0, 8 * 31(sp) | ||
\\ | ||
\\ csrr a0, sscratch | ||
\\ ld a0, 16(a0) | ||
\\ sd a0, 8 * 30(sp) | ||
\\ | ||
\\ mv a0, sp | ||
\\ call ArchTrap | ||
\\.global ArchExitTrap | ||
\\ArchExitTrap: | ||
\\ ld a1, 8 * 31(a0) | ||
\\ csrw sepc, a1 | ||
\\ | ||
\\ ld ra, 8 * 0(a0) | ||
\\ ld gp, 8 * 1(a0) | ||
\\ ld tp, 8 * 2(a0) | ||
\\ ld t0, 8 * 3(a0) | ||
\\ ld t1, 8 * 4(a0) | ||
\\ ld t2, 8 * 5(a0) | ||
\\ ld t3, 8 * 6(a0) | ||
\\ ld t4, 8 * 7(a0) | ||
\\ ld t5, 8 * 8(a0) | ||
\\ ld t6, 8 * 9(a0) | ||
\\ // a0 would go here | ||
\\ ld a1, 8 * 11(a0) | ||
\\ ld a2, 8 * 12(a0) | ||
\\ ld a3, 8 * 13(a0) | ||
\\ ld a4, 8 * 14(a0) | ||
\\ ld a5, 8 * 15(a0) | ||
\\ ld a6, 8 * 16(a0) | ||
\\ ld a7, 8 * 17(a0) | ||
\\ ld s0, 8 * 18(a0) | ||
\\ ld s1, 8 * 19(a0) | ||
\\ ld s2, 8 * 20(a0) | ||
\\ ld s3, 8 * 21(a0) | ||
\\ ld s4, 8 * 22(a0) | ||
\\ ld s5, 8 * 23(a0) | ||
\\ ld s6, 8 * 24(a0) | ||
\\ ld s7, 8 * 25(a0) | ||
\\ ld s8, 8 * 26(a0) | ||
\\ ld s9, 8 * 27(a0) | ||
\\ ld s10, 8 * 28(a0) | ||
\\ ld s11, 8 * 29(a0) | ||
\\ ld sp, 8 * 30(a0) | ||
\\ | ||
\\ ld a0, 8 * 10(a0) | ||
\\ sret | ||
\\ nop | ||
\\ | ||
\\ j . // Should never reach here, but leave this as a safety check | ||
\\ nop | ||
); | ||
} |