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Optimize the interrupt handler a bit by using compile-time string concatenation.

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Lionel Debroux 2022-02-19 23:31:53 +01:00
parent 7b6855f608
commit 3ed9276eb0
1 changed files with 23 additions and 23 deletions
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46
app/interrupt.c
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@ -27,13 +27,13 @@
#define HLT_OPCODE 0xf4 #define HLT_OPCODE 0xf4
#ifdef __x86_64__ #ifdef __x86_64__
#define REG_PREFIX 'r' #define REG_PREFIX "r"
#define REG_DIGITS 16 #define REG_DIGITS "16"
#define ADR_DIGITS 12 #define ADR_DIGITS "12"
#else #else
#define REG_PREFIX 'e' #define REG_PREFIX "e"
#define REG_DIGITS 8 #define REG_DIGITS "8"
#define ADR_DIGITS 8 #define ADR_DIGITS "8"
#endif #endif
static const char *codes[] = { static const char *codes[] = {
@ -139,31 +139,31 @@ void interrupt(struct trap_regs *trap_regs)
} else { } else {
display_pinned_message(2, 0, "Type: %i", trap_regs->vect); display_pinned_message(2, 0, "Type: %i", trap_regs->vect);
} }
display_pinned_message(3, 0, " PC: %0*x", REG_DIGITS, (uintptr_t)trap_regs->ip); display_pinned_message(3, 0, " PC: %0" REG_DIGITS "x", (uintptr_t)trap_regs->ip);
display_pinned_message(4, 0, " CS: %0*x", REG_DIGITS, (uintptr_t)trap_regs->cs); display_pinned_message(4, 0, " CS: %0" REG_DIGITS "x", (uintptr_t)trap_regs->cs);
display_pinned_message(5, 0, "Flag: %0*x", REG_DIGITS, (uintptr_t)trap_regs->flags); display_pinned_message(5, 0, "Flag: %0" REG_DIGITS "x", (uintptr_t)trap_regs->flags);
display_pinned_message(6, 0, "Code: %0*x", REG_DIGITS, (uintptr_t)trap_regs->code); display_pinned_message(6, 0, "Code: %0" REG_DIGITS "x", (uintptr_t)trap_regs->code);
display_pinned_message(7, 0, " DS: %0*x", REG_DIGITS, (uintptr_t)trap_regs->ds); display_pinned_message(7, 0, " DS: %0" REG_DIGITS "x", (uintptr_t)trap_regs->ds);
display_pinned_message(8, 0, " ES: %0*x", REG_DIGITS, (uintptr_t)trap_regs->es); display_pinned_message(8, 0, " ES: %0" REG_DIGITS "x", (uintptr_t)trap_regs->es);
display_pinned_message(9, 0, " SS: %0*x", REG_DIGITS, (uintptr_t)trap_regs->ss); display_pinned_message(9, 0, " SS: %0" REG_DIGITS "x", (uintptr_t)trap_regs->ss);
if (trap_regs->vect == 14) { if (trap_regs->vect == 14) {
display_pinned_message(9, 0, " Addr: %0*x", REG_DIGITS, address); display_pinned_message(9, 0, " Addr: %0" REG_DIGITS "x", address);
} }
display_pinned_message(2, 25, "%cax: %0*x", REG_PREFIX, REG_DIGITS, (uintptr_t)trap_regs->ax); display_pinned_message(2, 25, REG_PREFIX "ax: %0" REG_DIGITS "x", (uintptr_t)trap_regs->ax);
display_pinned_message(3, 25, "%cbx: %0*x", REG_PREFIX, REG_DIGITS, (uintptr_t)trap_regs->bx); display_pinned_message(3, 25, REG_PREFIX "bx: %0" REG_DIGITS "x", (uintptr_t)trap_regs->bx);
display_pinned_message(4, 25, "%ccx: %0*x", REG_PREFIX, REG_DIGITS, (uintptr_t)trap_regs->cx); display_pinned_message(4, 25, REG_PREFIX "cx: %0" REG_DIGITS "x", (uintptr_t)trap_regs->cx);
display_pinned_message(5, 25, "%cdx: %0*x", REG_PREFIX, REG_DIGITS, (uintptr_t)trap_regs->dx); display_pinned_message(5, 25, REG_PREFIX "dx: %0" REG_DIGITS "x", (uintptr_t)trap_regs->dx);
display_pinned_message(6, 25, "%cdi: %0*x", REG_PREFIX, REG_DIGITS, (uintptr_t)trap_regs->di); display_pinned_message(6, 25, REG_PREFIX "di: %0" REG_DIGITS "x", (uintptr_t)trap_regs->di);
display_pinned_message(7, 25, "%csi: %0*x", REG_PREFIX, REG_DIGITS, (uintptr_t)trap_regs->si); display_pinned_message(7, 25, REG_PREFIX "si: %0" REG_DIGITS "x", (uintptr_t)trap_regs->si);
display_pinned_message(8, 25, "%cbp: %0*x", REG_PREFIX, REG_DIGITS, (uintptr_t)trap_regs->bp); display_pinned_message(8, 25, REG_PREFIX "bp: %0" REG_DIGITS "x", (uintptr_t)trap_regs->bp);
display_pinned_message(9, 25, "%csp: %0*x", REG_PREFIX, REG_DIGITS, (uintptr_t)trap_regs->sp); display_pinned_message(9, 25, REG_PREFIX "sp: %0" REG_DIGITS "x", (uintptr_t)trap_regs->sp);
display_pinned_message(0, 50, "Stack:"); display_pinned_message(0, 50, "Stack:");
for (int i = 0; i < 12; i++) { for (int i = 0; i < 12; i++) {
uintptr_t addr = trap_regs->sp + sizeof(reg_t)*(11 - i); uintptr_t addr = trap_regs->sp + sizeof(reg_t)*(11 - i);
reg_t data = *(reg_t *)addr; reg_t data = *(reg_t *)addr;
display_pinned_message(1 + i, 50, "%0*x %0*x", ADR_DIGITS, addr, REG_DIGITS, (uintptr_t)data); display_pinned_message(1 + i, 50, "%0" ADR_DIGITS "x %0" REG_DIGITS "x", addr, (uintptr_t)data);
} }
display_pinned_message(11, 0, "CS:PC:"); display_pinned_message(11, 0, "CS:PC:");