snark13
b851e22fa6
print_hex(uint8_t) was an early bare-metal helper doing exactly what
hex8() in the freshly-ported hex_print.c does (two-digit hex via
putchar()). hex8() is smaller (asm cp/sbc/daa nibble trick, no LUT)
and consistent with the dec8/hex16/dec16/hex32/dec32 family.
• Replaced print_hex() calls with hex8() in examples/banked and
examples/bankedbg.
• Removed libc/stdio/print_hex.c, dropped its prototype from
sprinter.h and its entry from lib/Makefile.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include <sprinter.h>
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/* crt0_banked.s reads this constant to know how many banks to load. */
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const uint8_t n_banks = 2;
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void bank1_func(int x) __banked;
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void bank2_func(int x) __banked;
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extern uint8_t bank_pages[]; /* filled by crt0_banked.s */
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static void show_w3(const char *who)
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{
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puts(who);
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hex8(_io_page_w3); /* current physical page mapped in window 3 */
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putchar('\n');
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}
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int main(void)
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{
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puts("HOME: program start.");
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#ifdef DEBUG_RT
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printf("HOME: w2_self_allocated = %u\n", w2_self_allocated);
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#endif
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show_w3("HOME: window 3 phys page = ");
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puts("HOME: bank_pages[1] (BANK1 phys) = ");
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hex8(bank_pages[1]);
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putchar('\n');
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puts("HOME: bank_pages[2] (BANK2 phys) = ");
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hex8(bank_pages[2]);
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putchar('\n');
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puts("HOME: calling bank1_func(42)...");
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bank1_func(42);
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show_w3("HOME: back, window 3 phys = ");
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puts("HOME: calling bank2_func(123)...");
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bank2_func(123);
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show_w3("HOME: back, window 3 phys = ");
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puts("HOME: done.");
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puts("Press any key to exit...");
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(void)getchar();
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return 0;
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}
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